An Accurate Shadow Removal Method for Vehicle Tracking

This paper proposed an accurate shadow removal method for vehicle tracking. Firstly we detect and remove the shadow using optical gain based gradient analysis,in this process some parts of vehicle which are similar to shadow region in color space may be detected as shadow and removing these parts will leave some holes in the vehicle region. Then we fill these holes using the skeleton information of vehicle. Finally the shadow edge is eliminated by geometric scanning. Experimental results show that the shadow can be removed precisely using the proposed method.