文档中描述了用8个方向的SOBEL算子，实现图像中对象边缘的检测功能-The document describes the SOBEL operator with eight directions of objects in an image edge detection function

研究了目前运动对象检测与跟踪的一些常用方法,包括时域差分法、背景差分法、基于光流场的检测方法和卡尔曼滤波、特征光流法的跟踪方法,并对各种方法进行了比较,指出其优缺点及适用范围,并给出了时域差分及背景差分方法的实验结果-Currently some of the commonly used methods to study the detection and tracking of moving objects, including difference time domain method, b