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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Slowack, J. Skorupa, J. Lambert, P. Van de Walle, R. Deligiannis, N. Munteanu, A. |
| Copyright Year | 2011 |
| Description | Author affiliation: Ghent University - IBBT, ELIS Dept, Multimedia Lab, Gaston Crommenlaan 8 bus 201, B-9050 Ledeberg-Ghent, Belgium (Slowack, J.; Skorupa, J.; Lambert, P.; Van de Walle, R.) || Vrije Universiteit Brussel - IBBT, ETRO Department, Pleinlaan 1, B-1050 Brussels, Belgium (Deligiannis, N.; Munteanu, A.) |
| Abstract | During the past decade, Distributed Video Coding (DVC) has emerged as a new video coding paradigm, shifting the complexity from the encoder - to the decoder-side. This paper addresses a problem of current DVC architectures that has not been studied in the literature so far, that is, the mismatch between the intra and Wyner-Ziv (WZ) quantization processes. Due to this mismatch, WZ rate is spent even for spatial regions that are accurately approximated by the side-information. As a solution, this paper proposes side-information generation using selective unidirectional motion compensation from temporally adjacent WZ frames. Experimental results show that the proposed approach yields promising WZ rate gains of up to 7% relative to the conventional method. |
| Starting Page | 1645 |
| Ending Page | 1648 |
| File Size | 971301 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781457713040 |
| ISSN | 15224880 |
| e-ISBN | 9781457713033 |
| e-ISBN | 9781457713026 |
| DOI | 10.1109/ICIP.2011.6115768 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-09-11 |
| Publisher Place | Belgium |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Decoding Quantization Video coding Image coding Motion compensation Noise Gain quantization Distributed Video Coding Wyner-Ziv coding |
| Content Type | Text |
| Resource Type | Article |
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