A viewpoint-dependent autostereoscopic 3D display method

Among the several types of 3D display method, the autostereoscopic method has an advantage that we can enjoy 3D image without any additional device, but the method has a disadvantage of a narrow viewing zone and so the moving viewer cannot see the 3D image continuously. This disadvantage can be overcome with the detection of viewer's positional movement by head tracking. In this paper, we suggest a method of detecting the two eyes position of moving viewer by using images obtained through a color CCD camera. The suggested method consists of the preprocessing process and the eye-detection process. and through the similarity measurement of stereo image rendered at z-buffer by Open Inventor and captured by stereo camera using robot we could find that viewpoint-dependent 3D images obtained by our proposed method is optimal to the viewer.