LOW-COMPLEXITY REDUNDANCY INSERTION IN MULTIPLE DESCRIPTION CODING

LOW-COMPLEXITY REDUNDANCY INSERTION IN MULTIPLE DESCRIPTION CODING

Multiple description coding has recently been proposed as a joint source and channel coding to solve the problem of robust image transmission over unreliable network, and it can offer a variety of tradeoff between signal redundancy and transmission robustness. In this letter, a novel pre- and post-p...

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Veröffentlicht in:Journal of electronics (China) 2008, Vol.25 (3), p.409-414
Hauptverfasser: Yang, Rener, Li, Jinxiang, Wen, Huafeng
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Sprache:eng
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Electrical Engineering
Engineering
解码技术
通信系统
通信网络
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container_title Journal of electronics (China)
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creator Yang, Rener
Li, Jinxiang
Wen, Huafeng
description Multiple description coding has recently been proposed as a joint source and channel coding to solve the problem of robust image transmission over unreliable network, and it can offer a variety of tradeoff between signal redundancy and transmission robustness. In this letter, a novel pre- and post-processing method with flexible redundancy insertion for polyphase downsampling multiple description coding is presented. The proposed method can be implemented as pre- and post-processing to all standards for image and video communications, with obvious advantages. Simulation results show that this approach can reduce the computational complexity while provide a flexible redundancy in- sertion to make the system robust for any packet loss situation over different networks.
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subjects Electrical Engineering
Engineering
解码技术
通信系统
通信网络
title LOW-COMPLEXITY REDUNDANCY INSERTION IN MULTIPLE DESCRIPTION CODING
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