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tuxiangshibie
- 用帧差分可以检测场景变化,一个简单帧差分可通过计算两个连续帧的象素获得。对帧内每个象素点(x,y),T时刻与T-1时刻象素值之差为Dx,y(T)=||Sx,y(T) – Sx,y(T-1)||。设定内帧差分系数IDsum=ΣL , IF ||Sx,y(T) – Sx,y(T-1)||≥Ta THEN L=TRUE,实际决定是否报警,可以通过计算三帧以上IDsum数量-Frame difference can be detected with the scene changes, a simple
Gradientfiltermethodw
- 基于视频图像处理提取夜间交通车辆完整轮廓的方法.通过梯度滤波消除路面反光的干扰,然后对经过预处理的相邻视频帧图像实行三帧差分分割运动区域。-Based on video image processing to extract the entire outline of the vehicle nighttime traffic methods. Reflective pavement through gradient filter to eliminate the interference, a