是一篇国外的图形文章代码，将输入图像的2D轨迹转化为3D图形

See randomshapes_demo.m and shark_demo.m for more information. I recommend that you try to compile the CMEX code for the function computeH: type 'mex computeH.c' in the Matlab Command Window ('mex computeH.c -l matlb' under Unix)