elgammal的核密度检测算法，比较经典，适用面也较广。-elgammal nuclear density detection algorithm, more classic, but also a broader applicability.

基于核密度估计的背景减法算法，拥有命令行界面的C++源代码。-kernel density estimation based background subtraction algorithm [1] with a command line interface. this algorithm is a somewhat improved version of [2]. the kmovingobjdetector class within the project is originally w