The Bit Allocation Method Based on Inter-View Dependency for Multi-View Texture Video Coding

Abstract

Multi-view texture video coding is very important, we propose a bit allocation method based on view layer and a bitrate decision method for P-frame of the dependent view (DV). First of all, considering that the distortion in the base view (BV) is directly transmitted to the DV by inter-view skip mode, the RD model of the DV is improved based on the inter view dependency. In this paper, a precise power model is derived based on our joint RD model to represent the target bitrates relationship between the BV and the DV. Then, since the P frame in the DV (P-DV) is mainly predicted from the corresponding I frame in the BV (I-BV) by inter-view prediction, the constant proportional relationship between the P-DV and the I-BV is discovered in this paper. Based on this discovery, a novel linear model is built to assign the target bitrates of the P-DV. Extensive experimental results exhibit that the proposed scheme provides a better RD performance than the state-of-the-art algorithms.