Distributed Video Coding with Shared Encoder/Decoder Complexity

Distributed video coding is a coding paradigm that allows complexity to be shared between encoder and decoder. In this context, video coding systems have been developed with encoder complexities similar to H.263+ intra-coding, while obtaining compression performance comparable to H.263+ inter coding...

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Veröffentlicht in:2007 IEEE International Conference on Image Processing Jg. 6; S. VI - 417 - VI - 420
Hauptverfasser: Clerckx, Tom, Munteanu, Adrian, Cornelis, Jan, Schelkens, Peter
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.09.2007
Schlagworte:
compression
Decoding
Distributed Video Coding
Encoding
Error correction codes
Extrapolation
Feedback loop
Forward error correction
Informatics
Interpolation
low-complexity
Motion estimation
Slepian-Wolf
Video coding
ISBN:9781424414369, 1424414369
ISSN:1522-4880
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Beschreibung
Zusammenfassung:Distributed video coding is a coding paradigm that allows complexity to be shared between encoder and decoder. In this context, video coding systems have been developed with encoder complexities similar to H.263+ intra-coding, while obtaining compression performance comparable to H.263+ inter coding. The decoders in these systems typically employ motion-compensated frame interpolation or extrapolation to generate side-information. However, as motion complexity of the video sequence increases, such generators fail to provide reliable side information. This paper proposes a pixel-domain distributed video coding method, combining low-complexity encoder-side bitplane motion estimation with decoder-side motion-compensated frame interpolation. It is shown that such a system is more suitable for sequences with increased motion complexity, compared to codecs that employ motion estimation at the decoder only.
ISBN:9781424414369
1424414369
ISSN:1522-4880
DOI:10.1109/ICIP.2007.4379610