2011年CVPR,MIT的 Jason Chang 发表了一篇文章:Efficient MCMC Sampling with Implicit Shape Representations 主要用于边缘检测。速度是普通方法的50,000倍(In contrastto previous methods, BFPS easily and efficiently handlestopological changes, large perturbations, and multipleregions, while exhibiting a 50,000 times speed up.) 代码可以到作者主页下载。