Depth Video Transmission Scheme for Free Viewpoint Video System

A depth video transmission scheme is proposed to solve the problems in free viewpoint video system, huge data amount of depth video and effect of depth video coding distortion on virtual view rendering.This scheme contains two parts, pre-processing and post-processing.During the preprocessing part, depth no-synthesis-error model is established and utilized to aid Gaussian filter.In addition, depth video is down-sampled to reduce the bit rate.During the post-processing part, the decoded and up-sampled depth video is processed by adaptive depth edge reconstruction filter.Experimental results show that the proposed method can save bit rate ranging from 53.87% to 73.62%, while it improves the overall rendering quality.