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01276 am a22001573u 4500 |
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359895 |
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|a Huo, Yongkai
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|a Wang, Tao
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|a Maunder, Robert G.
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|a Hanzo, Lajos
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|a Two-Dimensional Iterative Source-Channel Decoding for Distributed Video Coding
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|c 2014-01.
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|z Get fulltext
|u https://eprints.soton.ac.uk/359895/1/CL2013-2180.pdf
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|a 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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