OPTIMIZED RESIDUAL IMAGE FOR STEREO IMAGE CODING

Many research works have been developed for stereo image compression purpose by focusing on the disparity compensa-tion technique. For this reason, a great attention should be paid to the generation of the disparity-compensated residual image. Generally, the residual image is computed through a simple substruction of the disparity-compensated reference image from the target one. In this paper, we investigate two techniques for optimizing the computation of the residual im-age. The obtained results confirm the benefits of these opti-mization approaches in the context of stereo image coding. Index Terms — Stereo image, compression, disparity compensation, optimization, `2 and `1 minimization