基于分布式信源编码的多视角图像译码器设计  

Design of Multi-View Image Decoder Based on Distributed Source Coding

作　　者：汤俊[1] 

机构地区：[1]华南理工大学电子与信息学院,广东广州510642

出　　处：《科技广场》2016年第9期80-86,共7页Science Mosaic

摘　　要：本文设计的多视角图像译码器是基于分布式信源编码技术的,在像素域上对两幅平行相机拍摄的多视角图像进行处理。即发端对第一幅图像采用Intra编码来进行传输信息位,对于第二幅图像则采用分布式信源编码来进行传输校验位,在收端利用视差分析及补偿技术得到边信息,结合LDPCA编码器传输的校验位来进行解码,然后经过重建的过程,进而达到以较少的传输码率来恢复两幅多视角图像的目的,具有一定的压缩效率与较好的图像还原质量,并且整体的复杂度不高,能达到一定的编码效率。测试与实验过程在MATLAB上进行,运用了MATLAB强大的数学运算能力来进行仿真分析。This paper designs a multi-view image decoder based on distributed source coding techniques,which processes in the pixel domain images taken from two parallel cameras in multi-view. The sender processes the first image by using Intra encoding to transmit information,while for the second image by using distributed source coding to transmit the parity bit. At the receiver,information is obtained by using disparity analysis and compensation technology. By combining with the LDPCA encoder for decoding the parity bit and then after the reconstruction process,we restore two pieces of multi-view images with low transmission rate,which is of a certain compression efficiency,better quality of images and an overall complexity at a relatively low level,reaching a certain coding efficiency. Tests and experiments are performed in MATLAB,powerful mathematical tool for simulation analysis.

关 键 词：分布式信源编码 多视角图像 视差补偿 MATLAB 

分 类 号：TN911.22[电子电信—通信与信息系统]