A context based arithmetic image coding using a separate least squares algorithm

G. A. Triantafyllidis*, M. G. Strintzis

*Corresponding author for this work

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearchpeer-review

Abstract

The overall performance of discrete wavelet transforms for lossless image compression may be further improved by properly designing efficient entropy coders. In this paper a novel technique is proposed for the implementation of context-based adaptive arithmetic entropy coding. It is based on the prediction of the value of the current transform coefficient. The proposed algorithm employs a weighted least squares method applied separately for the HH, HL and LH bands of each level of the multiresolution structure, in order to achieve appropriate context selection for arithmetic coding. Experimental results illustrate and evaluate the performance of the proposed technique for lossless image compression.

Original languageEnglish
Publication date2001
Number of pages4
Publication statusPublished - 2001
EventProceedings of the 22nd Picture Coding Symposium: PCS-2001 - Seoul, Korea, Republic of
Duration: 25 Apr 200127 Apr 2001

Conference

ConferenceProceedings of the 22nd Picture Coding Symposium: PCS-2001
Country/TerritoryKorea, Republic of
CitySeoul
Period25/04/200127/04/2001
SponsorKorea Institute of Communication Sciences

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