Image coding using wavelet transform, vector quantization, and zerotrees

Author

Barrientos, Juan Claudio Regidor ; Binue, Maria Angeles Losada ; Rodriguez, Antonio Artes ; Alvano, Francisco D. ; Urbano, Luis

Author_Institution

Dept. de Electron. y Circuitos, Univ. Simon Bolivar, Caracas, Venezuela

fYear

1998

fDate

2-4 Mar 1998

Firstpage

166

Lastpage

171

Abstract

This paper proposes an image coding procedure that combines the vector quantization of a wavelet-transformed image and a modified form of Shapiro´s zerotree elimination algorithm. With this new approach, applied to radiographs, we have obtained compression rates better than with other methods tested at the ETSIT-UPM, with subjective quality of the reconstructed images ranging from very good to acceptable. We are continuing this research to refine the many parameters that affect the results

Keywords

image coding; trees (mathematics); vector quantisation; wavelet transforms; Shapiro zerotree elimination algorithm; compression rates; image coding procedure; reconstructed image quality; vector quantization; wavelet transform; zerotrees; Band pass filters; Bit rate; Image coding; Image quality; Image reconstruction; Image storage; Radiography; Vector quantization; Wavelet analysis; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Devices, Circuits and Systems, 1998. Proceedings of the 1998 Second IEEE International Caracas Conference on

Conference_Location

Isla de Margarita

Print_ISBN

0-7803-4434-0

Type

conf

DOI

10.1109/ICCDCS.1998.705826

Filename

705826