一个多目标跟踪的matlab代码，里面附有说明文档。其中背景差分法可以实现实时更新。该代码在检测与跟踪少量目标时效果很好，但是跟踪目标大于8后，效果下降很多,A multi-target tracking matlab code, which accompanied by a document. One of the background difference method can achieve real-time updates. The code detection and trackin