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Two-Dimensional Iterative Source-Channel Decoding for Distributed Video Coding

Two-Dimensional Iterative Source-Channel Decoding for Distributed Video Coding
Two-Dimensional Iterative Source-Channel Decoding for Distributed Video Coding
Motivated by the Joint Source-Channel Decoding (JSCD) principle of exploiting the source redundancy, in this treatise we study the application of iterative source-channel decoding (ISCD) conceived for distributed video coding (DVC), where the video signal is modelled by our Iterative Horizontal-Vertical Scanline Model (IHVSM) relying on a first-order Markov process. The IHVSM technique is combined with the classic forward error correction (FEC) codecs employed in the state-of-the-art DVC systems for the sake of reducing the bit rate. Our simulation results show that up to 21.5% bit rate reductions are achieved by employing the proposed ISCD technique in a DVC scheme. Alternatively, a peak signal-to-noise ratio (PSNR) gain of 2.2 dB is achieved at a bitrate of 4.5 Mbps when considering the Foreman sequence.
90-93
Huo, Yongkai
f2be4331-3c36-48c4-b4df-f5fa29a45e94
Wang, Tao
dd7d278c-abe5-46f4-9fa3-39e5629d43d7
Maunder, Robert G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Huo, Yongkai
f2be4331-3c36-48c4-b4df-f5fa29a45e94
Wang, Tao
dd7d278c-abe5-46f4-9fa3-39e5629d43d7
Maunder, Robert G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Huo, Yongkai, Wang, Tao, Maunder, Robert G. and Hanzo, Lajos (2014) Two-Dimensional Iterative Source-Channel Decoding for Distributed Video Coding. IEEE Communications Letters, 18 (1), 90-93. (doi:10.1109/LCOMM.2013.111513.132180).

Record type: Letter

Abstract

Motivated by the Joint Source-Channel Decoding (JSCD) principle of exploiting the source redundancy, in this treatise we study the application of iterative source-channel decoding (ISCD) conceived for distributed video coding (DVC), where the video signal is modelled by our Iterative Horizontal-Vertical Scanline Model (IHVSM) relying on a first-order Markov process. The IHVSM technique is combined with the classic forward error correction (FEC) codecs employed in the state-of-the-art DVC systems for the sake of reducing the bit rate. Our simulation results show that up to 21.5% bit rate reductions are achieved by employing the proposed ISCD technique in a DVC scheme. Alternatively, a peak signal-to-noise ratio (PSNR) gain of 2.2 dB is achieved at a bitrate of 4.5 Mbps when considering the Foreman sequence.

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Published date: January 2014
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 359895
URI: http://eprints.soton.ac.uk/id/eprint/359895
PURE UUID: bd49623e-e9a8-462a-b95a-ace20fd06a9c
ORCID for Robert G. Maunder: ORCID iD orcid.org/0000-0002-7944-2615
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 15 Nov 2013 11:37
Last modified: 18 Mar 2024 03:09

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Contributors

Author: Yongkai Huo
Author: Tao Wang
Author: Robert G. Maunder ORCID iD
Author: Lajos Hanzo ORCID iD

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