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https://www.um.edu.mt/library/oar/handle/123456789/16624
Title: | Improved rate-adaptive codes for distributed video coding |
Authors: | Micallef, Jeffrey J. Farrugia, Reuben A. Debono, Carl James |
Keywords: | Video compression Signal processing Computer algorithms |
Issue Date: | 2011 |
Publisher: | Institute of Electrical and Electronics Engineers Inc. |
Citation: | Micallef, J. J., Farrugia, R. A., & Debono, C. J. (2011). Improved rate-adaptive codes for distributed video coding. Visual Communications and Image Processing (VCIP), Tainan. 1-4. |
Abstract: | Distributed Video Coding (DVC) is a coding paradigm which shifts the major computational intensive tasks from the encoder to the decoder. Temporal correlation is exploited at the decoder by predicting the Wyner-Ziv (WZ) frames from the adjacent key frames. Compression is then achieved by transmitting just the parity information required to correct the predicted frame and recover the original frame. This paper proposes an algorithm which identifies most of the unreliable bits in the predicted bit planes, by considering the discrepancies in the previously decoded bit plane. The design of the used Low Density Parity Check (LDPC) codes is then biased to provide better protection to the unreliable bits. Simulation results show that, for the same target quality, the proposed scheme can reduce the WZ bit rates by up to 7% compared to traditional schemes. |
Description: | The research work is partially funded by the STEPS Malta.This scholarship is partly financed by the European Union - European Social Fund (ESF 1.25). |
URI: | https://www.um.edu.mt/library/oar//handle/123456789/16624 |
Appears in Collections: | Scholarly Works - FacICTCCE |
Files in This Item:
File | Description | Size | Format | |
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OA Conference paper - Improved rate-adaptive codes for Distributed Video Coding.2-5.pdf | Improved rate-adaptive codes for distributed video coding | 287.23 kB | Adobe PDF | View/Open |
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