Region Extraction Using Chroma Key with a Checker Pattern Background

In this paper, we propose a new region extraction method using chroma key with a two-tone checker pattern background. The method solves the problem in conventional chroma key techniques that foreground objects become transparent if they have the same color with the background. The method utilizes the adjacency condition between two-tone regions of the background and the geometrical information of the background grid line. Experimental results show that the foreground objects can be segmented exactly from the background regardless of the colors of the foreground objects.