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Titolo:
Improving MPEG-4 coding performance by jointly optimising compression and blocking effect elimination
Autore:
Cheung, WF; Chan, YH;
Indirizzi:
Hong Kong Polytech Univ, Dept Elect & Informat Engn, Ctr Multimedia SignalProc, Hong Kong, Hong Kong, Peoples R China Hong Kong Polytech Univ Hong Kong Hong Kong Peoples R China ples R China
Titolo Testata:
IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING
fascicolo: 3, volume: 148, anno: 2001,
pagine: 194 - 201
SICI:
1350-245X(200106)148:3<194:IMCPBJ>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
IMAGES; REDUCTION; ARTIFACTS; SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Cheung, WF Hong Kong Polytech Univ, Dept Elect & Informat Engn, Ctr Multimedia SignalProc, Hong Kong, Hong Kong, Peoples R China Hong Kong Polytech Univ Hong Kong Hong Kong Peoples R China a
Citazione:
W.F. Cheung e Y.H. Chan, "Improving MPEG-4 coding performance by jointly optimising compression and blocking effect elimination", IEE P-VIS I, 148(3), 2001, pp. 194-201

Abstract

In most current block-based image/video coding systems the compression stage and the deblocking stage operate separately and hence they cannot make use of each other to optimise the overall coding performance. It is suggested that the basic structure of the encoding systems should be modified such that the deblocking to be performed can be taken into account in the compression and the two processes can be jointly optimised. An example is also provided to show how this idea works successfully in a MPEG-4 codec to boost the rate-distortion performance when the suggested deblocking filter is exploited in the post-processing stage. The modification does not change the bit-stream format of the codec and hence is fully compatible with the original standard.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/01/20 alle ore 14:55:05