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In this letter, a novel optimized view synthesis distortion model is proposed for bit allocation in three-dimensional video coding. The proposed model separates the view synthesis distortion into two independent terms, and the two terms are modeled respectively by quadratic distortion models. Finally, the optimal quantization parameters for texture and depth can be determined by minimizing the view synthesis distortion under the total bitrate constraint. Experimental results show that compared with a fixed 5:1 method, the proposed method can obtain higher view synthesis rate-distortion performance.

View synthesis distortion model optimization for bit allocation in three-dimensional video coding