Adaptive parallax control based on 3D scene change detection

This paper presents an adaptive parallax control method based on 3D scene change detection for stereoscopic video sequences. For each pair of left and right frames, the maximum disparity corresponding to the closest object is estimated by using a simple block matching algorithm. The 3D scene change is detected if there exists an abrupt change in the values of either the maximum disparity or color histogram between successive pair of frames. Then, if the maximum disparity is excessive at a pair of frames where the scene change has occurred, the horizontal parallax is controlled by reducing the excessive maximum disparity that could induce the visual discomfort. The experimental results demonstrate the feasibility of the proposed approach.