Moving cast shadows detection based on ratio edge
Wei Zhang, Xiang Zhong Fang, Xiaokang Yang · 2006
In this paper we propose a novel method for moving cast shadows detection. Based on the analysis to the physical model of moving shadows, we prove that the ratio edge is illumination invariant. The distribution of the ratio edge is discussed and a significance test is performed to classify each image pixel into foreground object or moving shadow. Experimental results on typical scenes show that the proposed method can detect moving shadows robustly