利用OPENCV，实现运动目标的前景检测-Use OPENCV, to achieve the prospect of moving target detection

混合高斯模型，前景检测，效果比较好，里边有运行的效果图片以及进行检测的视频-Gaussian mixture model, the prospect of testing, the results were quite good, running inside the effect of pictures and video test

利用camara抓取連續的影像，利用後一張frame與前一張frame做相減後，取得動態物件之前景， 自利用侵蝕與膨脹的平滑處理去掉雜訊，最後再使用OPENCV裡的CAMSHIFT的函式最追蹤前景， 最後達到追蹤動態物件的目的。-Use camara capture sequential images, the use of a frame after frame with the previous one to do subtraction, and achieved th