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http://dx.doi.org/10.5909/JEB.2011.16.1.123

Rate-Distortion Based Selective Encoding in Distributed Video Coding  

Lee, Byung-Tak (School of Elec., Telecom. & Comp. Eng., Korea Aerospace Univ.)
Kim, Jae-Gon (School of Elec., Telecom. & Comp. Eng., Korea Aerospace Univ.)
Kim, Jin-Soo (School of Info. Comm. and Computer Eng., Hanbat National Univ.)
Seo, Kwang-Deok (Computer & Telecom. Eng. Division, Yonsei Univ.)
Publication Information
Journal of Broadcast Engineering / v.16, no.1, 2011 , pp. 123-132 More about this Journal
Abstract
Recently, DVC (Distributed Video Coding) is receiving a lot of attention as one of the low complexity video encoding techniques suitable for various applications with computation-limited and/or power-limited environment, and is being actively studied for improving the coding efficiency. This paper proposes a rate-distortion based selective block encoding scheme. First, the motion information is obtained in the process of generating side information at decoder and received through the feedback channel, and then, based on this information, the proposed method performs a selective block encoding based on rate-distortion optimization. Experimental results show that the performance of the proposed scheme reaches up to 2.2 dB PSNR gain over the existing scheme. Moreover, it is shown that the complexity can be reduced by encoding parts of region considering rate-distortion cost.
Keywords
DVC; Selective Encoding; Wyner-Ziv;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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