在图像中提取轮廓（用到了自适应阈值分割算法），根据目标特征，如周长、面积等参数进行筛选，得到目标的轮廓。-Contour extraction in the image (use an adaptive thresholding algorithm), depending on the target characteristics, such as perimeter, area and other parameters of screening, target profile.

【原创】自已写的采用自适应背景差法分割前景图像的程序，中间使用了LBP背景消除方法和区域生长算法，经验证效果相当好。-[original]Segmentation of the foreground image using adaptive background subtraction . In the program, LBP background elimination method and region growing algorithms is used.