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Channel Estimation for Block-Based Distributed Video Coding  

Min, Kyung-Yeon (Computer Engineering, Kwangwoon University)
Park, Sea-Nae (Computer Engineering, Kwangwoon University)
Yoo, Sung-Eun (Computer Engineering, Kwangwoon University)
Sim, Dong-Gyu (Computer Engineering, Kwangwoon University)
Jeon, Byeung-Woo (School of Information & Communication Engineering, Sungkyukwan University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.48, no.2, 2011 , pp. 53-64 More about this Journal
Abstract
In this paper, we propose a channel estimation of side information method based received motion vectors for distributed video coding. The proposed decoder estimates motion vectors of side information and transmits it to the encoder. As the proposed encoder generates side information which is the same to one in the decoder with received motion vectors, accuracy of side information of the decoder is assessed and it is transmitted to decoder. The proposed decoder can also estimate accurate crossover probability with received error information. As the proposed method conducts correct belief propagation, computational complexity of the channel decoder decreases and error correction capability is significantly improved with the smaller amount of parity bits. Experimental results show that the proposed algorithm is better in rate-distortion performance and it is faster than several conventional distributed video coding methods.
Keywords
Distributed video coding; channel estimation; belief propagation; side information; block based coding;
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Times Cited By KSCI : 2  (Citation Analysis)
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