Analyzing the characteristics of the shadows in traffic video sequence

we propose a small improvement to an existing background modal based on several current shadow detection algorithms

and incorporate a novel technique for shadow detection in grayscale video sequence. We gain the background establishes a robustness and auto adapted background modal. First we filtrate the shadow fuzzily

and then re establish the images of car to remove the shadow exactly. This algorithm works well for traffic video sequence

and has a widespread application prospect.