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监控视频中爬越护栏行为的检测与告警首先通过固定像头采集视频图像信息,通过形态学腐蚀与膨胀等方法进行去除噪音,使用帧差法与背景差法相结合标记出目标轮廓,分析轮廓信息并用不同颜色的矩形标记框来定位行人。最后,根据行人质心位置与运动轨迹、标记行人框的长宽比和行人停留的时间来分析,检测出行人爬越护栏异常行为并及时告警。
Detection and alarm of crawling over guardrail in surveillance video First, video image information is captured through a fixed camera, noise is removed by morphological erosion and expansion, and the target contour is marked by using the frame difference method and the background subtraction method to analyze the contour information And use different color rectangular marker box to locate pedestrians. Finally, according to the pedestrian centroid position and motion trajectory, marking the pedestrian box aspect ratio and pedestrian stay time to analyze, detect the pedestrian climbing barrier abnormal behavior and timely warning.