Distributed Video Coding: CODEC Architecture and Implementation
Titel:
Distributed Video Coding: CODEC Architecture and Implementation
Auteur:
Vijay Kumar Kodavalla P.G. Krishna Mohan
Verschenen in:
Signal & image processing
Paginering:
Jaargang 2 (2011) nr. 1 pagina's 151-163
Jaar:
2011
Inhoud:
Distributed Video Coding (DVC) is a new coding paradigm for video compression, based on Slepian-Wolf (lossless coding) and Wyner-Ziv (lossy coding) information theoretic results. DVC is useful foremerging applications such as wireless video cameras, wireless low-power surveillance networks anddisposable video cameras for medical applications etc. The primary objective of DVC is low-complexityvideo encoding, where bulk of computation is shifted to the decoder, as opposed to low-complexitydecoder in conventional video compression standards such as H.264 and MPEG etc. There are couple ofearly architectures and implementations of DVC from Stanford University[2][3] in 2002, BerkeleyUniversity PRISM (Power-efficient, Robust, hIgh-compression, Syndrome-based Multimedia coding)[4][5]in 2002 and European project DISCOVER (DIStributed COding for Video SERvices)[6] in 2007.Primarily there are two types of DVC techniques namely pixel domain and transform domain based.Transform domain design will have better rate-distortion (RD) performance as it exploits spatialcorrelation between neighbouring samples and compacts the block energy into as few transformcoefficients as possible (aka energy compaction). In this paper, architecture, implementation details and“C” model results of our transform domain DVC are presented.
Uitgever:
Academy & Industry Research Collaboration Center (AIRCC) (provided by DOAJ)
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