By using RGBcolor strips of color encoding structure-light,a method of color stripe edge detection based on color component intersection point is presented.The method changes the color strip images from RGBmodel to normalized color model l1 l2 l3which is not influenced by the ambient light,shooting angles of CCD and the shape of the 3D objects.Then the color stripe edge detection is implemented by the color component intersection point of l1 l2 l3model.And the deduce process of the color model transfer is g...