使用深度不连续性预测编码.pdfVIP

Depth Coding using Depth Discontinuity Prediction and in-loop Boundary Reconstruction Filtering Reuben A. Farrugia #1, Maverick Hili ∗2 # Department of CCE, University of Malta 1 reuben.farrugia@.mt 2 —This paper presents a depth coding strategy that the authors in [12], [13] exploit the similarity between depth employs K-means clustering to segment the sequence of depth and texture to improve the rate distortion performance. images into K clusters. The resulting clusters are losslessly This work presents a novel depth map compression algo- compressed and transmitted as supplemental enhancement infor- mation to aid the decoder in predicting macroblocks containing rithm which employs a depth discontinuity prediction strat- depth discontinuities. This method further employs an in-loop egy and an in-loop filter which were integrated within the boundary reconstruction filter to reduce distortions at the edges. H.264/AVC and H.264/MVC coding standards. Simu- The proposed algorithm was integrated within both H.264/AVC lation results demonstrate a significant gain in performance and H.264/MVC coding standards. Simulation results relative to H.264/AVC, H.264/MVC and the method presented demonstrate that the proposed scheme outperforms the state of the art depth coding schemes, where rendered Peak Signal to in [11]. The encoding complexity was reased by around Noise Ratio (PSNR) gains between 0.1 d