光流场HS算法，主要用的是差分算法，MATLAB编写-Optical flow field HS algorithm, the main differential algorithm

fdtd 时域有限差分法pml吸收边界条件 实现-fdtd FDTD method achieved pml absorbing boundary condition

用MATLAB进行图像处理。meanshift的方法进行图像的差分，以消除背景变化的问题-Image processing using MATLAB. meanshift the differential image, to eliminate the problem of the background changes