实现线性方程的拟合，给出误差和协方差

k均值分类 效率高 代码简单 利用最小均方误差准则编写-k-means efficient

lmse计算,最小均方误差计算，用搜索法找出两幅图像见最小均方误差-lmse caculation

光流检测人体运动--基于区域的图像运动描述（平均误差最小化的实现）--源于特征提取与图像处理-Optical flow to detect human motion feature extraction and image processing- derived from the descr iption of the motion of the image based on the region (average error is minimized to achieve)-