LMedS进行阈值的自动选取，用以实现时间差分和背景差分。

A C/C++ Library for Robust, Non-linear Homography Estimation，To compile, homest requires the levmar Levenberg-Marquardt non-linear least squares package, which in turn relies on BLAS/LAPACK.

matlab环境下的基于LMedS算法求解两图像之间的基础矩阵