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Proceedings Paper

Region-based fusion strategy for side information generation in DMVC
Author(s): Yongpeng Li; Xiangyang Ji; Debin Zhao; Wen Gao
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Paper Abstract

The coding efficiency of Wyner-Ziv frames relies considerably on the quality of side information and the capability to model the statistical dependency between the original frame and side information. In the field of distributed multi-view video coding (DMVC), there are two kinds of side information, namely temporal side information (TSI), which is generated by exploiting the temporal correlation, and inter-view side information (IVSI), which is generated by exploiting the inter-view correlation. This paper proposes a new fusion method to get better side information by the region-based combination of TSI and IVSI. Besides, an improved statistical model of "correlation channel" is proposed to estimate the statistical dependency between the original frame and side information at the decoder. We call it Region-based Correlation Channel Model (RCCM). The RCCM models the "correlation channel" between original frame and side information at a fine granularity level by detecting the spatial quality variation of side information within each Wyner-Ziv frame. Experimental results demonstrate that the RCCM can more accurately model the "correlation channel" between the original frame and side information and thus, less bits are required for decoding a Wyner-Ziv frame.

Paper Details

Date Published: 28 January 2008
PDF: 9 pages
Proc. SPIE 6822, Visual Communications and Image Processing 2008, 68221Y (28 January 2008); doi: 10.1117/12.767432
Show Author Affiliations
Yongpeng Li, Graduate Univ., Chinese Academy of Sciences (China)
Xiangyang Ji, Institute of Computing Technology (China)
Debin Zhao, Harbin Institute of Technology (China)
Wen Gao, Peking Univ. (China)


Published in SPIE Proceedings Vol. 6822:
Visual Communications and Image Processing 2008
William A. Pearlman; John W. Woods; Ligang Lu, Editor(s)

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