Title :
Distributed Video Coding with Shared Encoder/Decoder Complexity
Author :
Clerckx, Tom ; Munteanu, Adrian ; Cornelis, Jan ; Schelkens, Peter
Author_Institution :
Vrije Univ. Brussel, Brussels
fDate :
Sept. 16 2007-Oct. 19 2007
Abstract :
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.
Keywords :
data compression; decoding; image sequences; interpolation; motion compensation; video coding; H.263+ intra-coding; motion-compensated frame interpolation; pixel-domain distributed video coding; shared encoder/decoder complexity; video compression; video sequence; Decoding; Encoding; Error correction codes; Extrapolation; Feedback loop; Forward error correction; Informatics; Interpolation; Motion estimation; Video coding; Distributed Video Coding; Slepian-Wolf; compression; low-complexity;
Conference_Titel :
Image Processing, 2007. ICIP 2007. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-1437-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2007.4379610