Rate distortion optimal adaptive quantization and qoefficient thresholding for MPEG coding

D.S. Farin, M. Kaesemann, P.H.N. With, de, W.W.J. Effelsberg

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Abstract

This paper presents an MPEG..2 compatible adaptive quan tization algorithm that leads to the optimal encoding of I-frames in the sense of maximizing PSNR. It integrates three key features into a single Lagrangian optimization model: adaptive quantization including quantizer-change overhead consideration, coefficient thresholding, and a new coefficient amplitude reduction technique. Our results show that Iframes generated by the TM5 reference encoder are about 1.5-2.0 dB below the theoretical optimum.
Original languageEnglish
Title of host publication23rd international symposium on information theory in Benelux
EditorsB. Macq, J. Quisquater
Place of PublicationEnschede
PublisherWerkgemeenschap voor Informatie- en Communicatietheorie (WIC)
Pages131-138
ISBN (Print)90-71048-16-0
Publication statusPublished - 2002
Event2002 Symposium on Information Theory in the Benelux (SITB 2002) - Louvain-la-Neuve, Belgium
Duration: 29 May 200231 May 2002
Conference number: 23

Conference

Conference2002 Symposium on Information Theory in the Benelux (SITB 2002)
Abbreviated titleSITB 2002
Country/TerritoryBelgium
CityLouvain-la-Neuve
Period29/05/0231/05/02

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