Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2010, Vol. 33 ›› Issue (3): 88-92.doi: 10.13190/jbupt.201003.88.wangzl

• Papers • Previous Articles     Next Articles

A Distributed Video Coding Method Using Joint Bit-Planes Decoding Algorithm

WANG Zun-liang, LI Xue-ming   

  1. (Research Center of Multimedia Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China)

  • Received:2009-05-08 Revised:2010-01-20 Online:2010-06-28 Published:2010-05-14

Abstract:

In order to avoid correlation weakening between sources when bit-planes are decoded 

independently in distributed video coding (DVC), a joint bit-planes decoding (JBPD) 

algorithm is proposed. The JBPD algorithm uses the decoded bit-plane results as

 prior knowledge to decode other bit-planes to avoid correlation weakening between

 sources when bit-planes are decoded independently. The algorithm also makes 

full use of correlation between Wyner-Ziv frames and key frames. Therefore the ratedistortion performance of distributed video coding can be enhanced without increasing

 decoding complexity. Simulations indicate that, compared with the independent bit-planes 

decoding system, the proposed algorithm can achieve better bit-rate saving under the same 

condition, its performance improves more apparently with the increase of quantization levels.

Key words: distributed video coding, joint bit-planes decoding, low complexity video coding, distributed source coding

CLC Number: