Novel embedded compression algorithm for memory reduction in MPEG codecs

M. Schaar, van der, P.H.N. With, de

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

4 Citaten (Scopus)

Samenvatting

Advanced digital compression systems, like the MPEG-standard, are entering the consumer market. However, the consumer acceptation of these technologies relies considerably on the possibility of substantial reduction of the implementation costs. In this paper we study a low-cost and high-quality embedded compression system for reducing the memory requirements of an MPEG-2 decoder with a factor of 4 - 6. The proposed embedded codec is based on a low-cost transform coding scheme and employs a modified feedforward coding mechanism to ensure a fixed compression factor. A novel quantization technique is developed, which prevents the error accumulation resulting from multiple encodings of the same pixel data. The decrease in image quality, caused by the embedded compression, is minimal (i.e. less than 1 dB) for MPEG-2 coded sequences at 4 - 9 Mbit/s. The proposed algorithm can also be successfully applied for memory reduction of MPEG- 2 encoders and H.263 codecs.
Originele taal-2Engels
TitelVisual Communications and Image Processing '99 (VCIP99), San Jose
RedacteurenK. Aizawa, R.L. Stevenson, Y-Q Zhang
Plaats van productieBellingham
UitgeverijSPIE
Pagina's864-873
ISBN van geprinte versie0-8194-3124-9
DOI's
StatusGepubliceerd - 1999
EvenementVisual Communications and Image Processing '99 (VCIP '99), January 25-27, 1999, San Jose, CA, USA - San Jose, CA, Verenigde Staten van Amerika
Duur: 25 jan. 199927 jan. 1999

Publicatie series

NaamProceedings of SPIE
Volume3653
ISSN van geprinte versie0277-786X

Congres

CongresVisual Communications and Image Processing '99 (VCIP '99), January 25-27, 1999, San Jose, CA, USA
Verkorte titelVCIP '99
Land/RegioVerenigde Staten van Amerika
StadSan Jose, CA
Periode25/01/9927/01/99
AnderVisual Communications and Image Processing '99 (VCIP99)

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