Adaptive geometry-based intra prediction for depth video coding

In this paper, we propose an efficient depth video coding method for the 3D video (3DV) system. Since the boundary information of depth video significantly affects the rendering quality in the 3DV system, the proposed method reduces the loss of the boundary information by producing precise intra prediction modes. The characteristics of depth video are analyzed and considered to modify the previous geometry-adaptive block partitioning in the proposed method. The proposed method guarantees a better performance of intra prediction than the method of the H.264/AVC. Experimental results have shown that 0.33 dB coding gain in terms of PSNR and subjective quality improvement of synthesized views are achieved by the proposed method.