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http://dx.doi.org/10.7840/KICS.2011.36C.9.564

Efficient Distributed Video Coding System and Performance Analysis Using Lapped Transform  

Kang, Soo-Kyung (가톨릭대학교 정보통신전자공학과)
Lee, Chang-Woo (가톨릭대학교 정보통신전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.9C, 2011 , pp. 564-572 More about this Journal
Abstract
Distributed video coding (DVC) system has been proposed to reduce encoder complexity by using the correlation of frames in decoders. Since the block based motion estimation operation is not performed in the encoder of DVC system, lapped transforms, in which adjacent two blocks are transformed into one block, can be efficiently used in the DVC system. In this paper, an efficient DVC system using lapped transforms is proposed. The overlapped block motion compensated interpolation is used to produce side information, and the corresponding correlation noise between original Wyner-Ziv frame and side information is modeled. Extensive computer simulations show that the proposed DVC system outperforms conventional DVC systems.
Keywords
Distributed video coding; Lapped transform; Wyner-Ziv frame; Overlapped block; Motion compensated interpolation;
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