Scalable image coder mixing DCT and triangular meshes

Author

Demaret, Laurent ; Robert, Guillaume ; Laurent, Nathalie ; Buisson, Alexandre

Author_Institution

France Telecom R&D, Cesson-Sevigne, France

Volume

3

fYear

2000

fDate

2000

Firstpage

849

Abstract

A new very low bit rate scalable encoding principle is presented. It is based on hierarchical triangular mesh encoding combined with triangle based DCT coding. Affine or DCT approximation is selected according to best rate distortion trade-off. In this way our coder demonstrates advantages at very low bit rates avoiding the traditional block or ringing artefacts of current DCT or wavelet based coders

Keywords

approximation theory; data compression; discrete cosine transforms; image representation; rate distortion theory; transform coding; video coding; DCT approximation; DCT based coder; affine approximation; hierarchical triangular mesh encoding; rate distortion trade-off; scalable image coder; scalable image representation; scalable wavelet encoding; triangle based DCT coding; very low bit rate scalable encoding; video compression; wavelet based coder; Bit rate; Decoding; Decorrelation; Discrete cosine transforms; Encoding; Image coding; Research and development; Scalability; Telecommunications; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2000. Proceedings. 2000 International Conference on

Conference_Location

Vancouver, BC

ISSN

1522-4880

Print_ISBN

0-7803-6297-7

Type

conf

DOI

10.1109/ICIP.2000.899589

Filename

899589