最小二乘匹配，图像匹配算法，需要初始匹配坐标，可以达到亚像素精度-least squares matching, image matching algorithm, the initial need to match coordinates, can reach sub-pixel accuracy

最小二乘图像影像匹配方法，一个很详细的源码例程，有过程有结果，希望对初学者有帮助。高斯解方程，以及最小二乘匹配，里面都很详细。-Squares image image matching method, a very detailed source code routines, the outcome of the process, I hope to help beginners. Gaussian solution of equations, and least squares matchin