Image compression using integrated lossless/lossy methods

Author

Bassiouni, M.A. ; Tzannes, A.P. ; Tzannes, M.C. ; Tzannes, N.S.

Author_Institution

Dept. of Comput. Sci., Central Florida Univ., Orlando, FL, USA

fYear

1991

fDate

14-17 Apr 1991

Firstpage

2817

Abstract

A new compression scheme is described that aims at improving the fidelity of reconstructed images through the parallel application of both lossless and lossy compression techniques. The purpose of the scheme is to obtain compression ratios higher than those obtained by lossless compression schemes and at the same time produce reconstructed images with better fidelity than those normally obtained with lossy techniques. Tests so far have shown that the integrated lossless/lossy (IL/L) compression scheme consistently improves the fidelity of reconstructed images compared to well-known image compression algorithms. Specifically, the new scheme gives better fidelity (20% to 55% reduction in mean square error) than the DCT algorithm under equal compression ratios

Keywords

data compression; picture processing; transforms; DCT algorithm; compression ratios; discrete cosine transform; image compression; image quality; image reconstruction; integrated lossless/lossy methods; lossless compression; lossy compression; mean square error; tests; Compression algorithms; Concatenated codes; Decoding; Discrete cosine transforms; Discrete transforms; Gray-scale; Image coding; Image reconstruction; Image resolution; Pixel;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on

Conference_Location

Toronto, Ont.

ISSN

1520-6149

Print_ISBN

0-7803-0003-3

Type

conf

DOI

10.1109/ICASSP.1991.150988

Filename

150988