利用matlab离散划分有限元多重网格，得到图像-Divided into discrete finite element using matlab multigrid

用有限元反应数字散斑图像位移和应变信息的小程序，并在matlab上进行运算，精确到亚像素。-The reaction using the finite element digital speckle image information of the displacement and strain applet, and on the matlab calculates accurate to sub-pixel.

用扩展有限元反应数字散斑图像位移和应变信息的小程序，并在matlab上进行运算，精确到亚像素。-Extended Finite Element reaction with digital speckle image displacement and strain small program information, and on the matlab calculates accurate to sub-pixel.