1420 lines
		
	
	
		
			55 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			1420 lines
		
	
	
		
			55 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import sys
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import os
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import cv2
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import numpy as np
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from collections import defaultdict, deque
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from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, \
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    QFileDialog, QFrame, QScrollArea, QComboBox, QListWidget, QListWidgetItem, QLineEdit, QMessageBox, QDialog, \
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    QDialogButtonBox, QFormLayout, QTextEdit
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from PyQt5.QtCore import QTimer, Qt, pyqtSignal, QThread, QDateTime
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from PyQt5.QtGui import QImage, QPixmap, QFont, QPainter, QPen, QColor
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from yolopart.detector import LicensePlateYOLO
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from gate_control import GateController, WhitelistManager
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#选择使用哪个模块
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# from LPRNET_part.lpr_interface import LPRNmodel_predict
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# from LPRNET_part.lpr_interface import LPRNinitialize_model
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#使用OCR
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# from OCR_part.ocr_interface import LPRNmodel_predict
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# from OCR_part.ocr_interface import LPRNinitialize_model
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# 使用CRNN
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# from CRNN_part.crnn_interface import LPRNmodel_predict
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# from CRNN_part.crnn_interface import LPRNinitialize_model
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class PlateInputDialog(QDialog):
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    """车牌输入对话框"""
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    def __init__(self, title, default_text=""):
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        super().__init__()
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        self.setWindowTitle(title)
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        self.setFixedSize(300, 100)
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        self.setWindowModality(Qt.ApplicationModal)
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        layout = QVBoxLayout()
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        # 车牌输入框
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        self.plate_input = QLineEdit()
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        self.plate_input.setPlaceholderText("请输入车牌号")
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        self.plate_input.setText(default_text)
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        self.plate_input.setMaxLength(10)
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        # 按钮
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        buttons = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
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        buttons.accepted.connect(self.accept)
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        buttons.rejected.connect(self.reject)
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        layout.addWidget(QLabel("车牌号:"))
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        layout.addWidget(self.plate_input)
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        layout.addWidget(buttons)
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        self.setLayout(layout)
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    def get_plate_number(self):
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        """获取输入的车牌号"""
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        return self.plate_input.text().strip()
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class PlateStabilizer:
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    """车牌识别结果稳定器"""
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    def __init__(self, history_size=10, confidence_threshold=0.6, stability_frames=5):
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        self.history_size = history_size  # 历史帧数量
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        self.confidence_threshold = confidence_threshold  # 置信度阈值
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        self.stability_frames = stability_frames  # 稳定帧数要求
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        # 存储每个车牌的历史识别结果
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        self.plate_histories = defaultdict(lambda: deque(maxlen=history_size))
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        # 存储当前稳定的车牌结果
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        self.stable_results = {}
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        # 车牌ID计数器
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        self.plate_id_counter = 0
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        # 车牌位置追踪
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        self.plate_positions = {}
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    def calculate_plate_distance(self, pos1, pos2):
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        """计算两个车牌位置的距离"""
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        if pos1 is None or pos2 is None:
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            return float('inf')
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        # 计算中心点距离
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        center1 = ((pos1[0] + pos1[2]) / 2, (pos1[1] + pos1[3]) / 2)
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        center2 = ((pos2[0] + pos2[2]) / 2, (pos2[1] + pos2[3]) / 2)
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        return np.sqrt((center1[0] - center2[0])**2 + (center1[1] - center2[1])**2)
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    def match_plates_to_history(self, current_detections):
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        """将当前检测结果匹配到历史记录"""
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        matched_plates = {}
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        used_ids = set()
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        for detection in current_detections:
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            bbox = detection.get('bbox', [0, 0, 0, 0])
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            best_match_id = None
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            min_distance = float('inf')
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            # 寻找最佳匹配的历史车牌
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            for plate_id, last_pos in self.plate_positions.items():
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                if plate_id in used_ids:
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                    continue
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                distance = self.calculate_plate_distance(bbox, last_pos)
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                if distance < min_distance and distance < 100:  # 距离阈值
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                    min_distance = distance
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                    best_match_id = plate_id
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            if best_match_id is not None:
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                matched_plates[best_match_id] = detection
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                used_ids.add(best_match_id)
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                self.plate_positions[best_match_id] = bbox
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            else:
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                # 创建新的车牌ID
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                new_id = f"plate_{self.plate_id_counter}"
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                self.plate_id_counter += 1
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                matched_plates[new_id] = detection
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                self.plate_positions[new_id] = bbox
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        return matched_plates
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    def calculate_confidence(self, plate_text, detection_quality=1.0):
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        """计算识别结果的置信度"""
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        if not plate_text or plate_text == "识别失败":
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            return 0.0
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        # 基础置信度基于文本长度和字符类型
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        base_confidence = 0.5
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        # 长度合理性检查
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        if 7 <= len(plate_text) <= 8:
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            base_confidence += 0.2
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        # 字符类型检查(中文+字母+数字的组合)
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        has_chinese = any('\u4e00' <= char <= '\u9fff' for char in plate_text)
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        has_letter = any(char.isalpha() for char in plate_text)
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        has_digit = any(char.isdigit() for char in plate_text)
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        if has_chinese and has_letter and has_digit:
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            base_confidence += 0.2
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        # 检测质量影响
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        confidence = base_confidence * detection_quality
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        return min(confidence, 1.0)
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    def update_and_get_stable_result(self, current_detections, corrected_images, plate_texts):
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        """更新历史记录并返回稳定的识别结果"""
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        if not current_detections:
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            return []
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        # 匹配当前检测到历史记录
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        matched_plates = self.match_plates_to_history(current_detections)
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        stable_results = []
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        for plate_id, detection in matched_plates.items():
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            # 获取对应的矫正图像和识别文本
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            detection_idx = current_detections.index(detection)
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            corrected_image = corrected_images[detection_idx] if detection_idx < len(corrected_images) else None
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            plate_text = plate_texts[detection_idx] if detection_idx < len(plate_texts) else "识别失败"
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            # 计算置信度
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            confidence = self.calculate_confidence(plate_text)
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            # 添加到历史记录
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            history_entry = {
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                'text': plate_text,
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                'confidence': confidence,
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                'detection': detection,
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                'corrected_image': corrected_image
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            }
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            self.plate_histories[plate_id].append(history_entry)
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            # 计算稳定结果
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            stable_text = self.get_stable_text(plate_id)
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            if stable_text and stable_text != "识别失败":
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                stable_results.append({
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                    'id': plate_id,
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                    'class_name': detection['class_name'],
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                    'corrected_image': corrected_image,
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                    'plate_number': stable_text,
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                    'detection': detection
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                })
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        return stable_results
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    def get_stable_text(self, plate_id):
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        """获取指定车牌的稳定识别结果"""
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        history = self.plate_histories[plate_id]
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        if len(history) < 3:  # 历史记录太少,返回最新结果
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            return history[-1]['text'] if history else "识别失败"
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        # 统计各种识别结果的加权投票
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        text_votes = defaultdict(float)
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        total_confidence = 0
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        for entry in history:
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            text = entry['text']
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            confidence = entry['confidence']
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            if text != "识别失败" and confidence > 0.3:
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                text_votes[text] += confidence
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                total_confidence += confidence
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        if not text_votes:
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            return "识别失败"
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        # 找到得票最高的结果
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        best_text = max(text_votes.items(), key=lambda x: x[1])
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        # 检查是否足够稳定(得票率超过阈值)
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        vote_ratio = best_text[1] / total_confidence if total_confidence > 0 else 0
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        if vote_ratio >= self.confidence_threshold:
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            return best_text[0]
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        else:
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            # 不够稳定,返回最近的高置信度结果
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            recent_high_conf = [entry for entry in list(history)[-5:] 
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                              if entry['confidence'] > 0.5 and entry['text'] != "识别失败"]
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            if recent_high_conf:
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                return recent_high_conf[-1]['text']
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            else:
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                return history[-1]['text']
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    def clear_old_plates(self, current_plate_ids):
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        """清理不再出现的车牌历史记录"""
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        # 移除超过一定时间未更新的车牌
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        plates_to_remove = []
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        for plate_id in self.plate_histories.keys():
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            if plate_id not in current_plate_ids:
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                plates_to_remove.append(plate_id)
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        for plate_id in plates_to_remove:
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            if plate_id in self.plate_histories:
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                del self.plate_histories[plate_id]
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            if plate_id in self.plate_positions:
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                del self.plate_positions[plate_id]
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            if plate_id in self.stable_results:
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                del self.stable_results[plate_id]
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class CameraThread(QThread):
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    """摄像头线程类"""
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    frame_ready = pyqtSignal(np.ndarray)
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    def __init__(self):
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        super().__init__()
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        self.camera = None
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        self.running = False
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    def start_camera(self):
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        """启动摄像头"""
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        self.camera = cv2.VideoCapture(0)
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        if self.camera.isOpened():
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            self.running = True
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            self.start()
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            return True
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        return False
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    def stop_camera(self):
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        """停止摄像头"""
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        self.running = False
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        if self.camera:
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            self.camera.release()
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        self.quit()
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        self.wait()
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    def run(self):
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        """线程运行函数"""
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        while self.running:
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            if self.camera and self.camera.isOpened():
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                ret, frame = self.camera.read()
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                if ret:
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                    self.frame_ready.emit(frame)
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            self.msleep(30)  # 约30fps
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class VideoThread(QThread):
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    """视频处理线程类"""
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    frame_ready = pyqtSignal(np.ndarray)
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    video_finished = pyqtSignal()
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    def __init__(self):
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        super().__init__()
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        self.video_path = None
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        self.cap = None
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        self.running = False
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        self.paused = False
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    def load_video(self, video_path):
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        """加载视频文件"""
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        self.video_path = video_path
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        self.cap = cv2.VideoCapture(video_path)
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        return self.cap.isOpened()
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    def start_video(self):
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        """开始播放视频"""
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        if self.cap and self.cap.isOpened():
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            self.running = True
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            self.paused = False
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            self.start()
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            return True
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        return False
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    def pause_video(self):
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        """暂停/继续视频"""
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        self.paused = not self.paused
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        return self.paused
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    def stop_video(self):
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        """停止视频"""
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        self.running = False
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        if self.cap:
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            self.cap.release()
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        self.quit()
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        self.wait()
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    def run(self):
 | 
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        """线程运行函数"""
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						||
        while self.running:
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            if not self.paused and self.cap and self.cap.isOpened():
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                ret, frame = self.cap.read()
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                if ret:
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                    self.frame_ready.emit(frame)
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                else:
 | 
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                    # 视频播放结束
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						||
                    self.video_finished.emit()
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                    self.running = False
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                    break
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            self.msleep(30)  # 约30fps
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 | 
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class LicensePlateWidget(QWidget):
 | 
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    """单个车牌结果显示组件"""
 | 
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 | 
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    def __init__(self, plate_id, class_name, corrected_image, plate_number):
 | 
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        super().__init__()
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        self.plate_id = plate_id
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        self.init_ui(class_name, corrected_image, plate_number)
 | 
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 | 
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    def init_ui(self, class_name, corrected_image, plate_number):
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						||
        layout = QHBoxLayout()
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        layout.setContentsMargins(10, 5, 10, 5)
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        layout.setSpacing(8)  # 设置组件间距
 | 
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 | 
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        # 车牌类型标签
 | 
						||
        type_label = QLabel(class_name)
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						||
        type_label.setFixedWidth(60)
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						||
        type_label.setAlignment(Qt.AlignCenter)
 | 
						||
        type_label.setStyleSheet(
 | 
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            "QLabel { "
 | 
						||
            "background-color: #4CAF50 if class_name == '绿牌' else #2196F3; "
 | 
						||
            "color: white; "
 | 
						||
            "border-radius: 5px; "
 | 
						||
            "padding: 5px; "
 | 
						||
            "font-weight: bold; "
 | 
						||
            "}"
 | 
						||
        )
 | 
						||
        if class_name == '绿牌':
 | 
						||
            type_label.setStyleSheet(
 | 
						||
                "QLabel { "
 | 
						||
                "background-color: #4CAF50; "
 | 
						||
                "color: white; "
 | 
						||
                "border-radius: 5px; "
 | 
						||
                "padding: 5px; "
 | 
						||
                "font-weight: bold; "
 | 
						||
                "}"
 | 
						||
            )
 | 
						||
        else:
 | 
						||
            type_label.setStyleSheet(
 | 
						||
                "QLabel { "
 | 
						||
                "background-color: #2196F3; "
 | 
						||
                "color: white; "
 | 
						||
                "border-radius: 5px; "
 | 
						||
                "padding: 5px; "
 | 
						||
                "font-weight: bold; "
 | 
						||
                "}"
 | 
						||
            )
 | 
						||
        
 | 
						||
        # 矫正后的车牌图像
 | 
						||
        image_label = QLabel()
 | 
						||
        image_label.setStyleSheet("border: 1px solid #ddd; background-color: white;")
 | 
						||
        
 | 
						||
        if corrected_image is not None:
 | 
						||
            # 转换numpy数组为QPixmap
 | 
						||
            h, w = corrected_image.shape[:2]
 | 
						||
            if len(corrected_image.shape) == 3:
 | 
						||
                bytes_per_line = 3 * w
 | 
						||
                q_image = QImage(corrected_image.data, w, h, bytes_per_line, QImage.Format_RGB888).rgbSwapped()
 | 
						||
            else:
 | 
						||
                bytes_per_line = w
 | 
						||
                q_image = QImage(corrected_image.data, w, h, bytes_per_line, QImage.Format_Grayscale8)
 | 
						||
            
 | 
						||
            pixmap = QPixmap.fromImage(q_image)
 | 
						||
            
 | 
						||
            # 动态计算显示尺寸,保持车牌的宽高比
 | 
						||
            original_width = pixmap.width()
 | 
						||
            original_height = pixmap.height()
 | 
						||
            
 | 
						||
            # 设置最大显示尺寸限制
 | 
						||
            max_width = 150
 | 
						||
            max_height = 60
 | 
						||
            
 | 
						||
            # 计算缩放比例,确保图像完整显示
 | 
						||
            width_ratio = max_width / original_width if original_width > 0 else 1
 | 
						||
            height_ratio = max_height / original_height if original_height > 0 else 1
 | 
						||
            scale_ratio = min(width_ratio, height_ratio, 1.0)  # 不放大,只缩小
 | 
						||
            
 | 
						||
            # 计算实际显示尺寸
 | 
						||
            display_width = int(original_width * scale_ratio)
 | 
						||
            display_height = int(original_height * scale_ratio)
 | 
						||
            
 | 
						||
            # 确保最小显示尺寸
 | 
						||
            display_width = max(display_width, 80)
 | 
						||
            display_height = max(display_height, 25)
 | 
						||
            
 | 
						||
            # 设置标签尺寸并缩放图像
 | 
						||
            image_label.setFixedSize(display_width, display_height)
 | 
						||
            scaled_pixmap = pixmap.scaled(display_width, display_height, Qt.KeepAspectRatio, Qt.SmoothTransformation)
 | 
						||
            image_label.setPixmap(scaled_pixmap)
 | 
						||
            image_label.setAlignment(Qt.AlignCenter)
 | 
						||
        else:
 | 
						||
            # 当没有图像时,设置固定尺寸显示提示信息
 | 
						||
            image_label.setFixedSize(120, 40)
 | 
						||
            image_label.setText("车牌未完全\n进入摄像头")
 | 
						||
            image_label.setAlignment(Qt.AlignCenter)
 | 
						||
            image_label.setStyleSheet("border: 1px solid #ddd; background-color: #f5f5f5; color: #666;")
 | 
						||
        
 | 
						||
        # 车牌号标签 - 使用自适应宽度
 | 
						||
        number_label = QLabel(plate_number)
 | 
						||
        number_label.setMinimumWidth(120)  # 设置最小宽度
 | 
						||
        number_label.setMaximumWidth(200)  # 设置最大宽度
 | 
						||
        number_label.setAlignment(Qt.AlignCenter)
 | 
						||
        number_label.setStyleSheet(
 | 
						||
            "QLabel { "
 | 
						||
            "border: 1px solid #ddd; "
 | 
						||
            "background-color: white; "
 | 
						||
            "padding: 8px; "
 | 
						||
            "font-family: 'Courier New'; "
 | 
						||
            "font-size: 14px; "
 | 
						||
            "font-weight: bold; "
 | 
						||
            "}"
 | 
						||
        )
 | 
						||
        # 根据文本长度调整宽度
 | 
						||
        font_metrics = number_label.fontMetrics()
 | 
						||
        text_width = font_metrics.boundingRect(plate_number).width()
 | 
						||
        optimal_width = max(120, min(200, text_width + 20))  # 加20像素的边距
 | 
						||
        number_label.setFixedWidth(optimal_width)
 | 
						||
        
 | 
						||
        layout.addWidget(type_label)
 | 
						||
        layout.addWidget(image_label)
 | 
						||
        layout.addWidget(number_label)
 | 
						||
        layout.addStretch()
 | 
						||
        
 | 
						||
        self.setLayout(layout)
 | 
						||
        # 调整整体组件的最小高度以适应动态图像尺寸
 | 
						||
        min_height = max(60, image_label.height() + 20)  # 至少60像素高度
 | 
						||
        self.setMinimumHeight(min_height)
 | 
						||
        self.setStyleSheet(
 | 
						||
            "QWidget { "
 | 
						||
            "background-color: white; "
 | 
						||
            "border: 1px solid #e0e0e0; "
 | 
						||
            "border-radius: 8px; "
 | 
						||
            "margin: 2px; "
 | 
						||
            "}"
 | 
						||
        )
 | 
						||
 | 
						||
class MainWindow(QMainWindow):
 | 
						||
    """主窗口类"""
 | 
						||
    
 | 
						||
    def __init__(self):
 | 
						||
        super().__init__()
 | 
						||
        self.detector = None
 | 
						||
        self.camera_thread = None
 | 
						||
        self.video_thread = None
 | 
						||
        self.current_frame = None
 | 
						||
        self.detections = []
 | 
						||
        self.current_mode = "camera"  # 当前模式:camera, video, image
 | 
						||
        self.is_processing = False  # 标志位,表示是否正在处理识别任务
 | 
						||
        self.last_plate_results = []  # 存储上一次的车牌识别结果
 | 
						||
        self.current_recognition_method = "CRNN"  # 当前识别方法
 | 
						||
        
 | 
						||
        # 添加车牌稳定器
 | 
						||
        self.plate_stabilizer = PlateStabilizer(
 | 
						||
            history_size=15,  # 保存15帧历史
 | 
						||
            confidence_threshold=0.7,  # 70%置信度阈值
 | 
						||
            stability_frames=5  # 需要5帧稳定
 | 
						||
        )
 | 
						||
        
 | 
						||
        # 初始化道闸控制器和白名单管理器
 | 
						||
        self.gate_controller = GateController()
 | 
						||
        self.whitelist_manager = WhitelistManager()
 | 
						||
        
 | 
						||
        self.init_ui()
 | 
						||
        self.init_detector()
 | 
						||
        self.init_camera()
 | 
						||
        self.init_video()
 | 
						||
        self.init_gate_control()
 | 
						||
 | 
						||
        # 初始化默认识别方法(CRNN)的模型
 | 
						||
        self.change_recognition_method(self.current_recognition_method)
 | 
						||
 | 
						||
    
 | 
						||
    def init_ui(self):
 | 
						||
        """初始化用户界面"""
 | 
						||
        self.setWindowTitle("车牌识别系统")
 | 
						||
        self.setGeometry(100, 100, 1200, 800)
 | 
						||
        
 | 
						||
        # 创建中央widget
 | 
						||
        central_widget = QWidget()
 | 
						||
        self.setCentralWidget(central_widget)
 | 
						||
        
 | 
						||
        # 创建主布局
 | 
						||
        main_layout = QHBoxLayout(central_widget)
 | 
						||
        
 | 
						||
        # 左侧摄像头显示区域
 | 
						||
        left_frame = QFrame()
 | 
						||
        left_frame.setFrameStyle(QFrame.StyledPanel)
 | 
						||
        left_frame.setStyleSheet("QFrame { background-color: #f0f0f0; border: 2px solid #ddd; }")
 | 
						||
        left_layout = QVBoxLayout(left_frame)
 | 
						||
        
 | 
						||
        # 摄像头显示标签
 | 
						||
        self.camera_label = QLabel()
 | 
						||
        self.camera_label.setMinimumSize(640, 480)
 | 
						||
        self.camera_label.setStyleSheet("QLabel { background-color: black; border: 1px solid #ccc; }")
 | 
						||
        self.camera_label.setAlignment(Qt.AlignCenter)
 | 
						||
        self.camera_label.setText("摄像头未启动")
 | 
						||
        self.camera_label.setScaledContents(False)
 | 
						||
        
 | 
						||
        # 控制按钮
 | 
						||
        button_layout = QHBoxLayout()
 | 
						||
        self.start_button = QPushButton("启动摄像头")
 | 
						||
        self.stop_button = QPushButton("停止摄像头")
 | 
						||
        self.start_button.clicked.connect(self.start_camera)
 | 
						||
        self.stop_button.clicked.connect(self.stop_camera)
 | 
						||
        self.stop_button.setEnabled(False)
 | 
						||
        
 | 
						||
        # 视频控制按钮
 | 
						||
        self.open_video_button = QPushButton("打开视频")
 | 
						||
        self.stop_video_button = QPushButton("停止视频")
 | 
						||
        self.pause_video_button = QPushButton("暂停视频")
 | 
						||
        self.open_video_button.clicked.connect(self.open_video_file)
 | 
						||
        self.stop_video_button.clicked.connect(self.stop_video)
 | 
						||
        self.pause_video_button.clicked.connect(self.pause_video)
 | 
						||
        self.stop_video_button.setEnabled(False)
 | 
						||
        self.pause_video_button.setEnabled(False)
 | 
						||
        
 | 
						||
        # 图片控制按钮
 | 
						||
        self.open_image_button = QPushButton("打开图片")
 | 
						||
        self.open_image_button.clicked.connect(self.open_image_file)
 | 
						||
        
 | 
						||
        button_layout.addWidget(self.start_button)
 | 
						||
        button_layout.addWidget(self.stop_button)
 | 
						||
        button_layout.addWidget(self.open_video_button)
 | 
						||
        button_layout.addWidget(self.stop_video_button)
 | 
						||
        button_layout.addWidget(self.pause_video_button)
 | 
						||
        button_layout.addWidget(self.open_image_button)
 | 
						||
        button_layout.addStretch()
 | 
						||
        
 | 
						||
        left_layout.addWidget(self.camera_label)
 | 
						||
        left_layout.addLayout(button_layout)
 | 
						||
        
 | 
						||
        # 右侧结果显示区域
 | 
						||
        right_frame = QFrame()
 | 
						||
        right_frame.setFrameStyle(QFrame.StyledPanel)
 | 
						||
        right_frame.setFixedWidth(460)
 | 
						||
        right_frame.setStyleSheet("QFrame { background-color: #fafafa; border: 2px solid #ddd; }")
 | 
						||
        right_layout = QVBoxLayout(right_frame)
 | 
						||
        
 | 
						||
        # 道闸控制区域
 | 
						||
        gate_frame = QFrame()
 | 
						||
        gate_frame.setFrameStyle(QFrame.StyledPanel)
 | 
						||
        gate_frame.setStyleSheet("QFrame { background-color: #f0f8ff; border: 1px solid #b0d4f1; border-radius: 5px; }")
 | 
						||
        gate_layout = QVBoxLayout(gate_frame)
 | 
						||
        
 | 
						||
        # 道闸控制标题
 | 
						||
        gate_title = QLabel("道闸控制")
 | 
						||
        gate_title.setAlignment(Qt.AlignCenter)
 | 
						||
        gate_title.setFont(QFont("Arial", 14, QFont.Bold))
 | 
						||
        gate_title.setStyleSheet("QLabel { color: #1976d2; padding: 5px; }")
 | 
						||
        
 | 
						||
        # 道闸控制按钮
 | 
						||
        gate_button_layout = QHBoxLayout()
 | 
						||
        self.open_gate_button = QPushButton("手动开闸")
 | 
						||
        self.close_gate_button = QPushButton("手动关闸")
 | 
						||
        self.open_gate_button.clicked.connect(self.manual_open_gate)
 | 
						||
        self.close_gate_button.clicked.connect(self.manual_close_gate)
 | 
						||
        
 | 
						||
        # 设置道闸按钮样式
 | 
						||
        gate_button_style = """
 | 
						||
            QPushButton {
 | 
						||
                background-color: #4CAF50;
 | 
						||
                color: white;
 | 
						||
                border: none;
 | 
						||
                padding: 8px 16px;
 | 
						||
                border-radius: 4px;
 | 
						||
                font-weight: bold;
 | 
						||
            }
 | 
						||
            QPushButton:hover {
 | 
						||
                background-color: #45a049;
 | 
						||
            }
 | 
						||
            QPushButton:pressed {
 | 
						||
                background-color: #3d8b40;
 | 
						||
            }
 | 
						||
        """
 | 
						||
        self.open_gate_button.setStyleSheet(gate_button_style)
 | 
						||
        
 | 
						||
        close_button_style = """
 | 
						||
            QPushButton {
 | 
						||
                background-color: #f44336;
 | 
						||
                color: white;
 | 
						||
                border: none;
 | 
						||
                padding: 8px 16px;
 | 
						||
                border-radius: 4px;
 | 
						||
                font-weight: bold;
 | 
						||
            }
 | 
						||
            QPushButton:hover {
 | 
						||
                background-color: #d32f2f;
 | 
						||
            }
 | 
						||
            QPushButton:pressed {
 | 
						||
                background-color: #b71c1c;
 | 
						||
            }
 | 
						||
        """
 | 
						||
        self.close_gate_button.setStyleSheet(close_button_style)
 | 
						||
        
 | 
						||
        gate_button_layout.addWidget(self.open_gate_button)
 | 
						||
        gate_button_layout.addWidget(self.close_gate_button)
 | 
						||
        
 | 
						||
        # 白名单管理区域
 | 
						||
        whitelist_layout = QVBoxLayout()
 | 
						||
        whitelist_label = QLabel("车牌白名单")
 | 
						||
        whitelist_label.setFont(QFont("Arial", 12, QFont.Bold))
 | 
						||
        whitelist_label.setStyleSheet("QLabel { color: #333; padding: 5px; }")
 | 
						||
        
 | 
						||
        # 白名单按钮
 | 
						||
        whitelist_button_layout = QHBoxLayout()
 | 
						||
        self.add_plate_button = QPushButton("添加车牌")
 | 
						||
        self.edit_plate_button = QPushButton("编辑车牌")
 | 
						||
        self.delete_plate_button = QPushButton("删除车牌")
 | 
						||
        self.add_plate_button.clicked.connect(self.add_plate_to_whitelist)
 | 
						||
        self.edit_plate_button.clicked.connect(self.edit_plate_in_whitelist)
 | 
						||
        self.delete_plate_button.clicked.connect(self.delete_plate_from_whitelist)
 | 
						||
        
 | 
						||
        # 设置白名单按钮样式
 | 
						||
        whitelist_button_style = """
 | 
						||
            QPushButton {
 | 
						||
                background-color: #2196F3;
 | 
						||
                color: white;
 | 
						||
                border: none;
 | 
						||
                padding: 6px 12px;
 | 
						||
                border-radius: 4px;
 | 
						||
                font-weight: bold;
 | 
						||
                font-size: 11px;
 | 
						||
            }
 | 
						||
            QPushButton:hover {
 | 
						||
                background-color: #1976D2;
 | 
						||
            }
 | 
						||
            QPushButton:pressed {
 | 
						||
                background-color: #0D47A1;
 | 
						||
            }
 | 
						||
        """
 | 
						||
        self.add_plate_button.setStyleSheet(whitelist_button_style)
 | 
						||
        self.edit_plate_button.setStyleSheet(whitelist_button_style)
 | 
						||
        self.delete_plate_button.setStyleSheet(whitelist_button_style)
 | 
						||
        
 | 
						||
        whitelist_button_layout.addWidget(self.add_plate_button)
 | 
						||
        whitelist_button_layout.addWidget(self.edit_plate_button)
 | 
						||
        whitelist_button_layout.addWidget(self.delete_plate_button)
 | 
						||
        
 | 
						||
        # 白名单列表
 | 
						||
        self.whitelist_list = QListWidget()
 | 
						||
        self.whitelist_list.setMaximumHeight(120)
 | 
						||
        self.whitelist_list.setStyleSheet("""
 | 
						||
            QListWidget {
 | 
						||
                border: 1px solid #ddd;
 | 
						||
                background-color: white;
 | 
						||
                border-radius: 4px;
 | 
						||
                padding: 5px;
 | 
						||
            }
 | 
						||
            QListWidget::item {
 | 
						||
                padding: 5px;
 | 
						||
                border-bottom: 1px solid #eee;
 | 
						||
            }
 | 
						||
            QListWidget::item:selected {
 | 
						||
                background-color: #e3f2fd;
 | 
						||
                color: #1976d2;
 | 
						||
            }
 | 
						||
        """)
 | 
						||
        
 | 
						||
        # 调试日志区域
 | 
						||
        log_label = QLabel("调试日志")
 | 
						||
        log_label.setFont(QFont("Arial", 10, QFont.Bold))
 | 
						||
        log_label.setStyleSheet("QLabel { color: #333; padding: 5px; }")
 | 
						||
        
 | 
						||
        self.log_text = QTextEdit()
 | 
						||
        self.log_text.setMaximumHeight(100)
 | 
						||
        self.log_text.setReadOnly(True)
 | 
						||
        self.log_text.setStyleSheet("""
 | 
						||
            QTextEdit {
 | 
						||
                border: 1px solid #ddd;
 | 
						||
                background-color: #f9f9f9;
 | 
						||
                border-radius: 4px;
 | 
						||
                padding: 5px;
 | 
						||
                font-family: 'Consolas', 'Courier New', monospace;
 | 
						||
                font-size: 10px;
 | 
						||
            }
 | 
						||
        """)
 | 
						||
        
 | 
						||
        # 添加到道闸控制布局
 | 
						||
        whitelist_layout.addWidget(whitelist_label)
 | 
						||
        whitelist_layout.addLayout(whitelist_button_layout)
 | 
						||
        whitelist_layout.addWidget(self.whitelist_list)
 | 
						||
        
 | 
						||
        gate_layout.addWidget(gate_title)
 | 
						||
        gate_layout.addLayout(gate_button_layout)
 | 
						||
        gate_layout.addLayout(whitelist_layout)
 | 
						||
        gate_layout.addWidget(log_label)
 | 
						||
        gate_layout.addWidget(self.log_text)
 | 
						||
        
 | 
						||
        # 标题
 | 
						||
        title_label = QLabel("检测结果")
 | 
						||
        title_label.setAlignment(Qt.AlignCenter)
 | 
						||
        title_label.setFont(QFont("Arial", 16, QFont.Bold))
 | 
						||
        title_label.setStyleSheet("QLabel { color: #333; padding: 10px; }")
 | 
						||
        
 | 
						||
        # 识别方法选择
 | 
						||
        method_layout = QHBoxLayout()
 | 
						||
        method_label = QLabel("识别方法:")
 | 
						||
        method_label.setFont(QFont("Arial", 10))
 | 
						||
        
 | 
						||
        self.method_combo = QComboBox()
 | 
						||
        self.method_combo.addItems(["CRNN", "LightCRNN", "OCR"])
 | 
						||
        self.method_combo.setCurrentText("CRNN")  # 默认选择CRNN
 | 
						||
        self.method_combo.currentTextChanged.connect(self.change_recognition_method)
 | 
						||
        
 | 
						||
        method_layout.addWidget(method_label)
 | 
						||
        method_layout.addWidget(self.method_combo)
 | 
						||
        method_layout.addStretch()
 | 
						||
        
 | 
						||
        # 车牌数量显示
 | 
						||
        self.count_label = QLabel("识别到的车牌数量: 0")
 | 
						||
        self.count_label.setAlignment(Qt.AlignCenter)
 | 
						||
        self.count_label.setFont(QFont("Arial", 12))
 | 
						||
        self.count_label.setStyleSheet(
 | 
						||
            "QLabel { "
 | 
						||
            "background-color: #e3f2fd; "
 | 
						||
            "border: 1px solid #2196f3; "
 | 
						||
            "border-radius: 5px; "
 | 
						||
            "padding: 8px; "
 | 
						||
            "color: #1976d2; "
 | 
						||
            "font-weight: bold; "
 | 
						||
            "}"
 | 
						||
        )
 | 
						||
        
 | 
						||
        # 滚动区域用于显示车牌结果
 | 
						||
        scroll_area = QScrollArea()
 | 
						||
        scroll_area.setWidgetResizable(True)
 | 
						||
        scroll_area.setStyleSheet("QScrollArea { border: none; background-color: transparent; }")
 | 
						||
        
 | 
						||
        self.results_widget = QWidget()
 | 
						||
        self.results_layout = QVBoxLayout(self.results_widget)
 | 
						||
        self.results_layout.setAlignment(Qt.AlignTop)
 | 
						||
        
 | 
						||
        scroll_area.setWidget(self.results_widget)
 | 
						||
        
 | 
						||
        # 当前识别任务显示
 | 
						||
        self.current_method_label = QLabel("当前识别方法: CRNN")
 | 
						||
        self.current_method_label.setAlignment(Qt.AlignRight)
 | 
						||
        self.current_method_label.setFont(QFont("Arial", 9))
 | 
						||
        self.current_method_label.setStyleSheet("QLabel { color: #666; padding: 5px; }")
 | 
						||
        
 | 
						||
        right_layout.addWidget(gate_frame)
 | 
						||
        right_layout.addWidget(title_label)
 | 
						||
        right_layout.addLayout(method_layout)
 | 
						||
        right_layout.addWidget(self.count_label)
 | 
						||
        right_layout.addWidget(scroll_area)
 | 
						||
        right_layout.addWidget(self.current_method_label)
 | 
						||
        
 | 
						||
        # 添加到主布局
 | 
						||
        main_layout.addWidget(left_frame, 2)
 | 
						||
        main_layout.addWidget(right_frame, 1)
 | 
						||
        
 | 
						||
        # 设置样式
 | 
						||
        self.setStyleSheet("""
 | 
						||
            QMainWindow {
 | 
						||
                background-color: #f5f5f5;
 | 
						||
            }
 | 
						||
            QPushButton {
 | 
						||
                background-color: #2196F3;
 | 
						||
                color: white;
 | 
						||
                border: none;
 | 
						||
                padding: 8px 16px;
 | 
						||
                border-radius: 4px;
 | 
						||
                font-weight: bold;
 | 
						||
            }
 | 
						||
            QPushButton:hover {
 | 
						||
                background-color: #1976D2;
 | 
						||
            }
 | 
						||
            QPushButton:pressed {
 | 
						||
                background-color: #0D47A1;
 | 
						||
            }
 | 
						||
            QPushButton:disabled {
 | 
						||
                background-color: #cccccc;
 | 
						||
                color: #666666;
 | 
						||
            }
 | 
						||
        """)
 | 
						||
    
 | 
						||
    def init_detector(self):
 | 
						||
        """初始化检测器"""
 | 
						||
        model_path = os.path.join(os.path.dirname(__file__), "yolopart", "yolo11s-pose42.pt")
 | 
						||
        self.detector = LicensePlateYOLO(model_path)
 | 
						||
    
 | 
						||
    def reset_processing_state(self):
 | 
						||
        """重置处理状态和清理界面"""
 | 
						||
        # 重置处理标志
 | 
						||
        self.is_processing = False
 | 
						||
        
 | 
						||
        # 清空当前帧和检测结果
 | 
						||
        self.current_frame = None
 | 
						||
        self.detections = []
 | 
						||
        
 | 
						||
        # 重置车牌稳定器
 | 
						||
        self.plate_stabilizer = PlateStabilizer(
 | 
						||
            history_size=15,
 | 
						||
            confidence_threshold=0.7,
 | 
						||
            stability_frames=5
 | 
						||
        )
 | 
						||
        
 | 
						||
        # 清空右侧结果显示
 | 
						||
        self.count_label.setText("识别到的车牌数量: 0")
 | 
						||
        for i in reversed(range(self.results_layout.count())):
 | 
						||
            child = self.results_layout.itemAt(i).widget()
 | 
						||
            if child:
 | 
						||
                child.setParent(None)
 | 
						||
        self.last_plate_results = []
 | 
						||
        
 | 
						||
        print("处理状态已重置,界面已清理")
 | 
						||
    
 | 
						||
    def init_camera(self):
 | 
						||
        """初始化摄像头线程"""
 | 
						||
        self.camera_thread = CameraThread()
 | 
						||
        self.camera_thread.frame_ready.connect(self.process_frame)
 | 
						||
    
 | 
						||
    def init_video(self):
 | 
						||
        """初始化视频线程"""
 | 
						||
        self.video_thread = VideoThread()
 | 
						||
        self.video_thread.frame_ready.connect(self.process_frame)
 | 
						||
        self.video_thread.video_finished.connect(self.on_video_finished)
 | 
						||
    
 | 
						||
    def start_camera(self):
 | 
						||
        """启动摄像头"""
 | 
						||
        # 重置处理状态和清理界面
 | 
						||
        self.reset_processing_state()
 | 
						||
        
 | 
						||
        if self.camera_thread.start_camera():
 | 
						||
            self.current_mode = "camera"
 | 
						||
            self.start_button.setEnabled(False)
 | 
						||
            self.stop_button.setEnabled(True)
 | 
						||
            self.camera_label.setText("摄像头启动中...")
 | 
						||
        else:
 | 
						||
            self.camera_label.setText("摄像头启动失败")
 | 
						||
    
 | 
						||
    def stop_camera(self):
 | 
						||
        """停止摄像头"""
 | 
						||
        self.camera_thread.stop_camera()
 | 
						||
        self.start_button.setEnabled(True)
 | 
						||
        self.stop_button.setEnabled(False)
 | 
						||
        self.camera_label.setText("摄像头已停止")
 | 
						||
        # 只在摄像头模式下清除标签内容
 | 
						||
        if self.current_mode == "camera":
 | 
						||
            self.camera_label.clear()
 | 
						||
    
 | 
						||
    def on_video_finished(self):
 | 
						||
        """视频播放结束时的处理"""
 | 
						||
        self.video_thread.stop_video()
 | 
						||
        self.open_video_button.setEnabled(True)
 | 
						||
        self.stop_video_button.setEnabled(False)
 | 
						||
        self.pause_video_button.setEnabled(False)
 | 
						||
        self.camera_label.setText("视频播放结束")
 | 
						||
        self.current_mode = "camera"
 | 
						||
    
 | 
						||
    def open_video_file(self):
 | 
						||
        """打开视频文件"""
 | 
						||
        # 停止当前模式
 | 
						||
        if self.current_mode == "camera" and self.camera_thread and self.camera_thread.running:
 | 
						||
            self.stop_camera()
 | 
						||
        elif self.current_mode == "video" and self.video_thread and self.video_thread.running:
 | 
						||
            self.stop_video()
 | 
						||
        
 | 
						||
        # 重置处理状态和清理界面
 | 
						||
        self.reset_processing_state()
 | 
						||
        
 | 
						||
        # 选择视频文件
 | 
						||
        video_path, _ = QFileDialog.getOpenFileName(self, "选择视频文件", "", "视频文件 (*.mp4 *.avi *.mov *.mkv)")
 | 
						||
        
 | 
						||
        if video_path:
 | 
						||
            if self.video_thread.load_video(video_path):
 | 
						||
                self.current_mode = "video"
 | 
						||
                self.start_video()
 | 
						||
                self.camera_label.setText(f"正在播放视频: {os.path.basename(video_path)}")
 | 
						||
            else:
 | 
						||
                self.camera_label.setText("视频加载失败")
 | 
						||
    
 | 
						||
    def start_video(self):
 | 
						||
        """开始播放视频"""
 | 
						||
        if self.video_thread.start_video():
 | 
						||
            self.open_video_button.setEnabled(False)
 | 
						||
            self.stop_video_button.setEnabled(True)
 | 
						||
            self.pause_video_button.setEnabled(True)
 | 
						||
            self.pause_video_button.setText("暂停")
 | 
						||
        else:
 | 
						||
            self.camera_label.setText("视频播放失败")
 | 
						||
    
 | 
						||
    def pause_video(self):
 | 
						||
        """暂停/继续视频"""
 | 
						||
        if self.video_thread.pause_video():
 | 
						||
            self.pause_video_button.setText("继续")
 | 
						||
        else:
 | 
						||
            self.pause_video_button.setText("暂停")
 | 
						||
    
 | 
						||
    def stop_video(self):
 | 
						||
        """停止视频"""
 | 
						||
        self.video_thread.stop_video()
 | 
						||
        self.open_video_button.setEnabled(True)
 | 
						||
        self.stop_video_button.setEnabled(False)
 | 
						||
        self.pause_video_button.setEnabled(False)
 | 
						||
        self.camera_label.setText("视频已停止")
 | 
						||
        # 只在视频模式下清除标签内容
 | 
						||
        if self.current_mode == "video":
 | 
						||
            self.camera_label.clear()
 | 
						||
        self.current_mode = "camera"
 | 
						||
    
 | 
						||
    def open_image_file(self):
 | 
						||
        """打开图片文件"""
 | 
						||
        # 停止当前模式
 | 
						||
        if self.current_mode == "camera" and self.camera_thread and self.camera_thread.running:
 | 
						||
            self.stop_camera()
 | 
						||
        elif self.current_mode == "video" and self.video_thread and self.video_thread.running:
 | 
						||
            self.stop_video()
 | 
						||
        
 | 
						||
        # 重置处理状态和清理界面
 | 
						||
        self.reset_processing_state()
 | 
						||
        
 | 
						||
        # 选择图片文件
 | 
						||
        image_path, _ = QFileDialog.getOpenFileName(self, "选择图片文件", "", "图片文件 (*.jpg *.jpeg *.png *.bmp)")
 | 
						||
        
 | 
						||
        if image_path:
 | 
						||
            self.current_mode = "image"
 | 
						||
            try:
 | 
						||
                # 读取图片 - 方法1: 使用cv2.imdecode处理中文路径
 | 
						||
                image = cv2.imdecode(np.fromfile(image_path, dtype=np.uint8), cv2.IMREAD_COLOR)
 | 
						||
                
 | 
						||
                # 如果方法1失败,尝试方法2: 直接使用cv2.imread
 | 
						||
                if image is None:
 | 
						||
                    image = cv2.imread(image_path)
 | 
						||
                    
 | 
						||
                if image is not None:
 | 
						||
                    print(f"成功加载图片: {image_path}, 尺寸: {image.shape}")
 | 
						||
                    self.process_image(image)
 | 
						||
                    # 不在这里设置文本,避免覆盖图片
 | 
						||
                    # self.camera_label.setText(f"正在显示图片: {os.path.basename(image_path)}")
 | 
						||
                else:
 | 
						||
                    print(f"图片加载失败: {image_path}")
 | 
						||
                    self.camera_label.setText("图片加载失败")
 | 
						||
            except Exception as e:
 | 
						||
                print(f"图片处理异常: {str(e)}")
 | 
						||
                self.camera_label.setText(f"图片处理错误: {str(e)}")
 | 
						||
    
 | 
						||
    def process_image(self, image):
 | 
						||
        """处理图片"""
 | 
						||
        try:
 | 
						||
            print(f"开始处理图片,图片尺寸: {image.shape}")
 | 
						||
            self.current_frame = image.copy()
 | 
						||
            
 | 
						||
            # 进行车牌检测
 | 
						||
            print("正在进行车牌检测...")
 | 
						||
            self.detections = self.detector.detect_license_plates(image)
 | 
						||
            print(f"检测到 {len(self.detections)} 个车牌")
 | 
						||
            
 | 
						||
            # 在图像上绘制检测结果
 | 
						||
            print("正在绘制检测结果...")
 | 
						||
            display_frame = self.draw_detections(image.copy())
 | 
						||
            
 | 
						||
            # 转换为Qt格式并显示
 | 
						||
            print("正在显示图片...")
 | 
						||
            self.display_frame(display_frame)
 | 
						||
            
 | 
						||
            # 更新右侧结果显示
 | 
						||
            print("正在更新结果显示...")
 | 
						||
            self.update_results_display()
 | 
						||
            print("图片处理完成")
 | 
						||
        except Exception as e:
 | 
						||
            print(f"图片处理过程中出错: {str(e)}")
 | 
						||
            import traceback
 | 
						||
            traceback.print_exc()
 | 
						||
    
 | 
						||
    def process_frame(self, frame):
 | 
						||
        """处理摄像头帧"""
 | 
						||
        if frame is None:
 | 
						||
            return
 | 
						||
            
 | 
						||
        self.current_frame = frame.copy()
 | 
						||
        
 | 
						||
        # 先显示原始帧,保证视频流畅播放
 | 
						||
        self.display_frame(frame)
 | 
						||
        
 | 
						||
        # 如果当前没有在处理识别任务,则开始新的识别任务
 | 
						||
        if not self.is_processing:
 | 
						||
            self.is_processing = True
 | 
						||
            # 异步进行车牌检测和识别
 | 
						||
            QTimer.singleShot(0, self.async_detect_and_update)
 | 
						||
    
 | 
						||
    def async_detect_and_update(self):
 | 
						||
        """异步进行车牌检测和识别"""
 | 
						||
        if self.current_frame is None:
 | 
						||
            self.is_processing = False  # 重置标志位
 | 
						||
            return
 | 
						||
            
 | 
						||
        try:
 | 
						||
            # 进行车牌检测
 | 
						||
            self.detections = self.detector.detect_license_plates(self.current_frame)
 | 
						||
            
 | 
						||
            # 在图像上绘制检测结果
 | 
						||
            display_frame = self.draw_detections(self.current_frame.copy())
 | 
						||
            
 | 
						||
            # 更新显示帧(显示带检测结果的帧)
 | 
						||
            # 无论是摄像头模式还是视频模式,都显示检测框
 | 
						||
            self.display_frame(display_frame)
 | 
						||
            
 | 
						||
            # 更新右侧结果显示
 | 
						||
            self.update_results_display()
 | 
						||
        except Exception as e:
 | 
						||
            print(f"异步检测和更新失败: {str(e)}")
 | 
						||
            import traceback
 | 
						||
            traceback.print_exc()
 | 
						||
        finally:
 | 
						||
            # 无论成功或失败,都要重置标志位
 | 
						||
            self.is_processing = False
 | 
						||
    
 | 
						||
    def draw_detections(self, frame):
 | 
						||
        """在图像上绘制检测结果"""
 | 
						||
        # 获取车牌号列表
 | 
						||
        plate_numbers = []
 | 
						||
        for detection in self.detections:
 | 
						||
            # 矫正车牌图像
 | 
						||
            corrected_image = self.correct_license_plate(detection)
 | 
						||
            # 获取车牌号
 | 
						||
            if corrected_image is not None:
 | 
						||
                plate_number = self.recognize_plate_number(corrected_image, detection['class_name'])
 | 
						||
                plate_numbers.append(plate_number)
 | 
						||
            else:
 | 
						||
                plate_numbers.append("识别失败")
 | 
						||
        
 | 
						||
        return self.detector.draw_detections(frame, self.detections, plate_numbers)
 | 
						||
    
 | 
						||
    def display_frame(self, frame):
 | 
						||
        """显示帧到界面"""
 | 
						||
        try:
 | 
						||
            print(f"开始显示帧,帧尺寸: {frame.shape}")
 | 
						||
            
 | 
						||
            # 方法1: 标准方法
 | 
						||
            try:
 | 
						||
                rgb_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
 | 
						||
                h, w, ch = rgb_frame.shape
 | 
						||
                bytes_per_line = ch * w
 | 
						||
                qt_image = QImage(rgb_frame.data, w, h, bytes_per_line, QImage.Format_RGB888)
 | 
						||
                
 | 
						||
                print(f"方法1: 创建QImage,尺寸: {qt_image.width()}x{qt_image.height()}")
 | 
						||
                if qt_image.isNull():
 | 
						||
                    print("方法1: QImage为空,尝试方法2")
 | 
						||
                    raise Exception("QImage为空")
 | 
						||
                    
 | 
						||
                pixmap = QPixmap.fromImage(qt_image)
 | 
						||
                if pixmap.isNull():
 | 
						||
                    print("方法1: QPixmap为空,尝试方法2")
 | 
						||
                    raise Exception("QPixmap为空")
 | 
						||
                    
 | 
						||
                # 手动缩放图片以适应标签大小,保持宽高比
 | 
						||
                scaled_pixmap = pixmap.scaled(self.camera_label.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
 | 
						||
                self.camera_label.setPixmap(scaled_pixmap)
 | 
						||
                print("方法1: 帧显示完成")
 | 
						||
                return
 | 
						||
            except Exception as e1:
 | 
						||
                print(f"方法1失败: {str(e1)}")
 | 
						||
            
 | 
						||
            # 方法2: 使用imencode和imdecode
 | 
						||
            try:
 | 
						||
                print("尝试方法2: 使用imencode和imdecode")
 | 
						||
                _, buffer = cv2.imencode('.jpg', frame)
 | 
						||
                rgb_frame = cv2.imdecode(buffer, cv2.IMREAD_COLOR)
 | 
						||
                rgb_frame = cv2.cvtColor(rgb_frame, cv2.COLOR_BGR2RGB)
 | 
						||
                h, w, ch = rgb_frame.shape
 | 
						||
                bytes_per_line = ch * w
 | 
						||
                qt_image = QImage(rgb_frame.data, w, h, bytes_per_line, QImage.Format_RGB888)
 | 
						||
                
 | 
						||
                print(f"方法2: 创建QImage,尺寸: {qt_image.width()}x{qt_image.height()}")
 | 
						||
                if qt_image.isNull():
 | 
						||
                    print("方法2: QImage为空")
 | 
						||
                    raise Exception("QImage为空")
 | 
						||
                    
 | 
						||
                pixmap = QPixmap.fromImage(qt_image)
 | 
						||
                if pixmap.isNull():
 | 
						||
                    print("方法2: QPixmap为空")
 | 
						||
                    raise Exception("QPixmap为空")
 | 
						||
                    
 | 
						||
                # 手动缩放图片以适应标签大小,保持宽高比
 | 
						||
                scaled_pixmap = pixmap.scaled(self.camera_label.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
 | 
						||
                self.camera_label.setPixmap(scaled_pixmap)
 | 
						||
                print("方法2: 帧显示完成")
 | 
						||
                return
 | 
						||
            except Exception as e2:
 | 
						||
                print(f"方法2失败: {str(e2)}")
 | 
						||
            
 | 
						||
            # 方法3: 直接使用QImage的构造函数
 | 
						||
            try:
 | 
						||
                print("尝试方法3: 直接使用QImage的构造函数")
 | 
						||
                height, width, channel = frame.shape
 | 
						||
                bytes_per_line = 3 * width
 | 
						||
                q_image = QImage(frame.data, width, height, bytes_per_line, QImage.Format_BGR888)
 | 
						||
                
 | 
						||
                print(f"方法3: 创建QImage,尺寸: {q_image.width()}x{q_image.height()}")
 | 
						||
                if q_image.isNull():
 | 
						||
                    print("方法3: QImage为空")
 | 
						||
                    raise Exception("QImage为空")
 | 
						||
                    
 | 
						||
                pixmap = QPixmap.fromImage(q_image)
 | 
						||
                if pixmap.isNull():
 | 
						||
                    print("方法3: QPixmap为空")
 | 
						||
                    raise Exception("QPixmap为空")
 | 
						||
                    
 | 
						||
                # 手动缩放图片以适应标签大小,保持宽高比
 | 
						||
                scaled_pixmap = pixmap.scaled(self.camera_label.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
 | 
						||
                self.camera_label.setPixmap(scaled_pixmap)
 | 
						||
                print("方法3: 帧显示完成")
 | 
						||
                return
 | 
						||
            except Exception as e3:
 | 
						||
                print(f"方法3失败: {str(e3)}")
 | 
						||
                
 | 
						||
            # 所有方法都失败
 | 
						||
            print("所有显示方法都失败")
 | 
						||
            self.camera_label.setText("图片显示失败")
 | 
						||
                
 | 
						||
        except Exception as e:
 | 
						||
            print(f"显示帧过程中出错: {str(e)}")
 | 
						||
            import traceback
 | 
						||
            traceback.print_exc()
 | 
						||
            self.camera_label.setText(f"显示错误: {str(e)}")
 | 
						||
    
 | 
						||
    def update_results_display(self):
 | 
						||
        """更新右侧结果显示(使用稳定化结果)"""
 | 
						||
        print(f"开始更新结果显示,当前模式: {self.current_mode}, 检测数量: {len(self.detections) if self.detections else 0}")
 | 
						||
        
 | 
						||
        if not self.detections:
 | 
						||
            self.count_label.setText("识别到的车牌数量: 0")
 | 
						||
            # 清除显示
 | 
						||
            for i in reversed(range(self.results_layout.count())):
 | 
						||
                child = self.results_layout.itemAt(i).widget()
 | 
						||
                if child:
 | 
						||
                    child.setParent(None)
 | 
						||
            self.last_plate_results = []
 | 
						||
            print("无检测结果,已清空界面")
 | 
						||
            return
 | 
						||
        
 | 
						||
        # 获取矫正图像和识别文本
 | 
						||
        corrected_images = []
 | 
						||
        plate_texts = []
 | 
						||
        
 | 
						||
        for detection in self.detections:
 | 
						||
            corrected_image = self.correct_license_plate(detection)
 | 
						||
            corrected_images.append(corrected_image)
 | 
						||
            
 | 
						||
            if corrected_image is not None:
 | 
						||
                plate_text = self.recognize_plate_number(corrected_image, detection['class_name'])
 | 
						||
            else:
 | 
						||
                plate_text = "识别失败"
 | 
						||
            plate_texts.append(plate_text)
 | 
						||
        
 | 
						||
        # 使用稳定器获取稳定的识别结果
 | 
						||
        stable_results = self.plate_stabilizer.update_and_get_stable_result(
 | 
						||
            self.detections, corrected_images, plate_texts
 | 
						||
        )
 | 
						||
        
 | 
						||
        # 更新车牌数量显示
 | 
						||
        self.count_label.setText(f"识别到的车牌数量: {len(stable_results)}")
 | 
						||
        print(f"稳定结果数量: {len(stable_results)}")
 | 
						||
        
 | 
						||
        # 检查结果是否发生变化
 | 
						||
        results_changed = self.check_results_changed(stable_results)
 | 
						||
        print(f"结果是否变化: {results_changed}")
 | 
						||
        
 | 
						||
        if results_changed:
 | 
						||
            # 清除之前的结果
 | 
						||
            for i in reversed(range(self.results_layout.count())):
 | 
						||
                child = self.results_layout.itemAt(i).widget()
 | 
						||
                if child:
 | 
						||
                    child.setParent(None)
 | 
						||
            
 | 
						||
            # 添加新的稳定结果
 | 
						||
            for i, result in enumerate(stable_results):
 | 
						||
                plate_widget = LicensePlateWidget(
 | 
						||
                    i + 1,  # 显示序号
 | 
						||
                    result['class_name'],
 | 
						||
                    result['corrected_image'],
 | 
						||
                    result['plate_number']
 | 
						||
                )
 | 
						||
                self.results_layout.addWidget(plate_widget)
 | 
						||
                print(f"添加车牌widget: {result['plate_number']}")
 | 
						||
            
 | 
						||
            # 更新存储的结果
 | 
						||
            self.last_plate_results = stable_results
 | 
						||
            
 | 
						||
            # 处理道闸控制逻辑
 | 
						||
            for result in stable_results:
 | 
						||
                plate_number = result.get('plate_number', '')
 | 
						||
                if plate_number and plate_number != "识别失败":
 | 
						||
                    # 调用道闸控制逻辑
 | 
						||
                    self.process_gate_control(plate_number)
 | 
						||
        
 | 
						||
        # 清理旧的车牌记录
 | 
						||
        current_plate_ids = [result['id'] for result in stable_results]
 | 
						||
        self.plate_stabilizer.clear_old_plates(current_plate_ids)
 | 
						||
        print("结果显示更新完成")
 | 
						||
    
 | 
						||
    def check_results_changed(self, new_results):
 | 
						||
        """检查识别结果是否发生变化"""
 | 
						||
        if len(self.last_plate_results) != len(new_results):
 | 
						||
            return True
 | 
						||
        
 | 
						||
        for i, new_result in enumerate(new_results):
 | 
						||
            if i >= len(self.last_plate_results):
 | 
						||
                return True
 | 
						||
            
 | 
						||
            old_result = self.last_plate_results[i]
 | 
						||
            
 | 
						||
            # 比较关键字段
 | 
						||
            if (old_result.get('class_name') != new_result.get('class_name') or 
 | 
						||
                old_result.get('plate_number') != new_result.get('plate_number')):
 | 
						||
                return True
 | 
						||
        
 | 
						||
        return False
 | 
						||
    
 | 
						||
    def correct_license_plate(self, detection):
 | 
						||
        """矫正车牌图像"""
 | 
						||
        if self.current_frame is None:
 | 
						||
            return None
 | 
						||
        
 | 
						||
        # 检查是否为不完整检测
 | 
						||
        if detection.get('incomplete', False):
 | 
						||
            return None
 | 
						||
        
 | 
						||
        # 使用检测器的矫正方法
 | 
						||
        return self.detector.correct_license_plate(
 | 
						||
            self.current_frame, 
 | 
						||
            detection['keypoints']
 | 
						||
        )
 | 
						||
    
 | 
						||
    def recognize_plate_number(self, corrected_image, class_name):
 | 
						||
         """识别车牌号"""
 | 
						||
         if corrected_image is None:
 | 
						||
             return "识别失败"
 | 
						||
         
 | 
						||
         try:
 | 
						||
             # 根据当前选择的识别方法调用相应的函数
 | 
						||
             if self.current_recognition_method == "CRNN":
 | 
						||
                 from CRNN_part.crnn_interface import LPRNmodel_predict
 | 
						||
             elif self.current_recognition_method == "LightCRNN":
 | 
						||
                 from lightCRNN_part.lightcrnn_interface import LPRNmodel_predict
 | 
						||
             elif self.current_recognition_method == "OCR":
 | 
						||
                 from OCR_part.ocr_interface import LPRNmodel_predict
 | 
						||
             
 | 
						||
             # 预测函数(来自模块)
 | 
						||
             result = LPRNmodel_predict(corrected_image)
 | 
						||
             
 | 
						||
             # 将字符列表转换为字符串,支持8位车牌号
 | 
						||
             if isinstance(result, list) and len(result) >= 7:
 | 
						||
                 # 根据车牌类型决定显示位数
 | 
						||
                 if class_name == '绿牌' and len(result) >= 8:
 | 
						||
                     # 绿牌显示8位,过滤掉空字符占位符
 | 
						||
                     plate_chars = [char for char in result[:8] if char != '']
 | 
						||
                     # 如果过滤后确实有8位,显示8位;否则显示7位
 | 
						||
                     if len(plate_chars) == 8:
 | 
						||
                         return ''.join(plate_chars)
 | 
						||
                     else:
 | 
						||
                         return ''.join(plate_chars[:7])
 | 
						||
                 else:
 | 
						||
                     # 蓝牌或其他类型显示前7位,过滤掉空字符
 | 
						||
                     plate_chars = [char for char in result[:7] if char != '']
 | 
						||
                     return ''.join(plate_chars)
 | 
						||
             else:
 | 
						||
                 return "识别失败"
 | 
						||
         except Exception as e:
 | 
						||
             print(f"车牌号识别失败: {e}")
 | 
						||
             return "识别失败"
 | 
						||
    
 | 
						||
    def change_recognition_method(self, method):
 | 
						||
         """切换识别方法"""
 | 
						||
         self.current_recognition_method = method
 | 
						||
         self.current_method_label.setText(f"当前识别方法: {method}")
 | 
						||
         
 | 
						||
         # 初始化对应的模型
 | 
						||
         if method == "CRNN":
 | 
						||
             from CRNN_part.crnn_interface import LPRNinitialize_model
 | 
						||
             LPRNinitialize_model()
 | 
						||
         elif method == "LightCRNN":
 | 
						||
             from lightCRNN_part.lightcrnn_interface import LPRNinitialize_model
 | 
						||
             LPRNinitialize_model()
 | 
						||
         elif method == "OCR":
 | 
						||
             from OCR_part.ocr_interface import LPRNinitialize_model
 | 
						||
             LPRNinitialize_model()
 | 
						||
         
 | 
						||
         # 如果当前有显示的帧,重新处理以更新识别结果
 | 
						||
         if self.current_frame is not None:
 | 
						||
             self.process_frame(self.current_frame)
 | 
						||
    
 | 
						||
    def init_gate_control(self):
 | 
						||
        """初始化道闸控制功能"""
 | 
						||
        # 更新白名单列表显示
 | 
						||
        self.update_whitelist_display()
 | 
						||
        
 | 
						||
        # 添加初始日志
 | 
						||
        self.add_log("道闸控制系统已初始化")
 | 
						||
        
 | 
						||
        # GateController的IP地址在初始化时已设置,默认为192.168.43.12
 | 
						||
    
 | 
						||
    def manual_open_gate(self):
 | 
						||
        """手动开闸"""
 | 
						||
        self.gate_controller.manual_open_gate()
 | 
						||
        self.add_log("手动开闸指令已发送")
 | 
						||
    
 | 
						||
    def manual_close_gate(self):
 | 
						||
        """手动关闸"""
 | 
						||
        self.gate_controller.manual_close_gate()
 | 
						||
        self.add_log("手动关闸指令已发送")
 | 
						||
    
 | 
						||
    def add_plate_to_whitelist(self):
 | 
						||
        """添加车牌到白名单"""
 | 
						||
        dialog = PlateInputDialog("添加车牌", "")
 | 
						||
        if dialog.exec_() == QDialog.Accepted:
 | 
						||
            plate_number = dialog.get_plate_number()
 | 
						||
            if plate_number:
 | 
						||
                self.whitelist_manager.add_plate(plate_number)
 | 
						||
                self.update_whitelist_display()
 | 
						||
                self.add_log(f"已添加车牌到白名单: {plate_number}")
 | 
						||
    
 | 
						||
    def edit_plate_in_whitelist(self):
 | 
						||
        """编辑白名单中的车牌"""
 | 
						||
        current_item = self.whitelist_list.currentItem()
 | 
						||
        if not current_item:
 | 
						||
            QMessageBox.warning(self, "提示", "请先选择要编辑的车牌")
 | 
						||
            return
 | 
						||
        
 | 
						||
        old_plate = current_item.text()
 | 
						||
        dialog = PlateInputDialog("编辑车牌", old_plate)
 | 
						||
        if dialog.exec_() == QDialog.Accepted:
 | 
						||
            new_plate = dialog.get_plate_number()
 | 
						||
            if new_plate and new_plate != old_plate:
 | 
						||
                self.whitelist_manager.remove_plate(old_plate)
 | 
						||
                self.whitelist_manager.add_plate(new_plate)
 | 
						||
                self.update_whitelist_display()
 | 
						||
                self.add_log(f"已修改车牌: {old_plate} -> {new_plate}")
 | 
						||
    
 | 
						||
    def delete_plate_from_whitelist(self):
 | 
						||
        """从白名单中删除车牌"""
 | 
						||
        current_item = self.whitelist_list.currentItem()
 | 
						||
        if not current_item:
 | 
						||
            QMessageBox.warning(self, "提示", "请先选择要删除的车牌")
 | 
						||
            return
 | 
						||
        
 | 
						||
        plate = current_item.text()
 | 
						||
        reply = QMessageBox.question(self, "确认", f"确定要删除车牌 {plate} 吗?",
 | 
						||
                                   QMessageBox.Yes | QMessageBox.No)
 | 
						||
        
 | 
						||
        if reply == QMessageBox.Yes:
 | 
						||
            self.whitelist_manager.remove_plate(plate)
 | 
						||
            self.update_whitelist_display()
 | 
						||
            self.add_log(f"已从白名单删除车牌: {plate}")
 | 
						||
    
 | 
						||
    def update_whitelist_display(self):
 | 
						||
        """更新白名单列表显示"""
 | 
						||
        self.whitelist_list.clear()
 | 
						||
        for plate in self.whitelist_manager.get_whitelist():
 | 
						||
            self.whitelist_list.addItem(plate)
 | 
						||
    
 | 
						||
    def add_log(self, message):
 | 
						||
        """添加日志消息"""
 | 
						||
        current_time = QDateTime.currentDateTime().toString("hh:mm:ss")
 | 
						||
        log_message = f"[{current_time}] {message}"
 | 
						||
        self.log_text.append(log_message)
 | 
						||
        # 限制日志行数,避免内存占用过多
 | 
						||
        if self.log_text.document().blockCount() > 100:
 | 
						||
            cursor = self.log_text.textCursor()
 | 
						||
            cursor.movePosition(cursor.Start)
 | 
						||
            cursor.select(cursor.BlockUnderCursor)
 | 
						||
            cursor.removeSelectedText()
 | 
						||
            cursor.deleteChar()  # 删除换行符
 | 
						||
    
 | 
						||
    def process_gate_control(self, plate_number):
 | 
						||
        """处理道闸控制逻辑"""
 | 
						||
        # 检查车牌是否在白名单中
 | 
						||
        if self.whitelist_manager.is_whitelisted(plate_number):
 | 
						||
            # 使用GateController的auto_open_gate方法,它会自动处理时间差
 | 
						||
            self.gate_controller.auto_open_gate(plate_number)
 | 
						||
            self.add_log(f"车牌 {plate_number} 验证通过,已发送开闸指令")
 | 
						||
        else:
 | 
						||
            # 不在白名单中,发送禁行指令
 | 
						||
            self.gate_controller.deny_access(plate_number)
 | 
						||
            self.add_log(f"车牌 {plate_number} 不在白名单中,已发送禁行指令")
 | 
						||
 | 
						||
    def closeEvent(self, event):
 | 
						||
        """窗口关闭事件"""
 | 
						||
        if self.camera_thread and self.camera_thread.running:
 | 
						||
            self.camera_thread.stop_camera()
 | 
						||
        if self.video_thread and self.video_thread.running:
 | 
						||
            self.video_thread.stop_video()
 | 
						||
        event.accept()
 | 
						||
 | 
						||
def main():
 | 
						||
    app = QApplication(sys.argv)
 | 
						||
    window = MainWindow()
 | 
						||
    window.show()
 | 
						||
    sys.exit(app.exec_())
 | 
						||
 | 
						||
if __name__ == "__main__":
 | 
						||
    main() |