An efficient wavelet-VQ method for image coding

Author

Begum, Momotuz ; Nahar, Nurun ; Fatimah, K. ; Hasan, Md Kamml

Author_Institution

Dept. of Electr. & Electron. Eng., Bangladesh Univ. of Eng. & Technol., Dhaka, Bangladesh

Volume

2

fYear

2003

fDate

25-28 May 2003

Abstract

In this paper, we propose an effective method for image coding using vector quantization (VQ) and wavelet transforms. An efficient clustering algorithm is derived for codebook design using mean-squared error (MSE) and variance based selection strategy. The new technique is implemented in the wavelet-domain. Different subband coefficients are vector quantized using full search VQ and adaptive dynamic finite state VQ (ADFSVQ). Computer simulation results are presented to evaluate and compare the performance of the proposed scheme with other reported results.

Keywords

block codes; image coding; mean square error methods; pattern clustering; vector quantisation; wavelet transforms; adaptive dynamic finite state VQ; block encoding; clustering algorithm; codebook design; computer simulation results; efficient wavelet-VQ method; full search VQ; image coding; mean-squared error; subband coefficients; variance based selection strategy; vector quantization; wavelet transform; wavelet-domain implementation; Algorithm design and analysis; Clustering algorithms; Computer errors; Computer simulation; Digital images; Genetic algorithms; Image coding; Speech; Vector quantization; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1206001

Filename

1206001