A New Object-Based Fractal Stereo Codec with Quadtree-Based Disparity or Motion Compensation

A new object-based fractal stereo video coding scheme with quadtree-based disparity or motion compensation is proposed in this paper. Monocular or stereo video are compressed by using fractal coding and each object is encoded independently by a prior image segmentation alpha plane which is exactly the same as in MPEG-4. The first 2 frames of right video are encoded by using the circular prediction mapping (CPM) and the remaining frames are encoded by using the non contractive interframe mapping (NCIM). The CPM and NCIM methods accomplish the motion estimation/compensation of right video (reference), and according to different coding or user requirements, the spatial correlations between left and right frames can be explored by partial or full affine transformation quadtree-based disparity estimation/compensation, or simply applying CPM/NCIM on left video. The experimental results indicate that we get high compression ratio and also good PSNR