Polynomial image coding with vector quantised error compensation

Author

Bethel, D.M. ; Monro, D.M.

Author_Institution

Sch. of Electron. & Electr. Eng., Bath Univ., UK

Volume

4

fYear

1995

fDate

9-12 May 1995

Firstpage

2499

Abstract

We report a novel image coder which is a hybrid of fractal coding and vector quantisation. The approach to image compression is to form an approximate image by one method and clear up errors by another. In this realisation, image blocks are approximated by polynomial functions, and the residual image blocks are coded by vector quantisation into a codebook which is small enough to transmit with an image. The method is evaluated on a number of parameters, and the results are found to be intermediate between fractal and JPEG coding in their rate/distortion performance. Possible further improvements are indicated

Keywords

coding errors; error compensation; fractals; image coding; polynomials; rate distortion theory; vector quantisation; error compensation; fractal coding; image blocks; image coding; image compression; polynomial functions; rate-distortion performance; residual image blocks; vector quantisation; Books; Error compensation; Fractals; Image coding; Least squares approximation; Polynomials; Rate distortion theory; Rendering (computer graphics); Ribs; Vector quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on

Conference_Location

Detroit, MI

ISSN

1520-6149

Print_ISBN

0-7803-2431-5

Type

conf

DOI

10.1109/ICASSP.1995.480056

Filename

480056