Analysis of wavelet image compression using nonorthogonal and orthogonally compensated W-transforms

Author

Akujuobi, Cajetan M. ; Kwong, Man Kam

Author_Institution

Dept. of Phys. & Electron. Eng., Norfolk State Univ., VA, USA

fYear

1996

fDate

11-14 Apr 1996

Firstpage

297

Lastpage

300

Abstract

The W-transform is constructed by relaxing the orthogonality conditions required in the classical wavelet transforms. Using nonorthogonal and orthogonally compensated W-transforms, different images are compressed and reconstructed. The effects of the two types of W-transforms on compressed images are analyzed. Different measures of compression quality are used in the performance evaluation of the reconstructed images. The quadratic spline and Daubechies wavelet coefficients are also compared for compression effects on different images

Keywords

data compression; image coding; image reconstruction; splines (mathematics); transform coding; wavelet transforms; Daubechies wavelet coefficients; compressed images; compression effects; compression quality measures; image reconstruction; nonorthogonal compensated W-transforms; orthogonality conditions; orthogonally compensated W-transforms; performance evaluation; quadratic spline coefficients; wavelet image compression; wavelet transforms; Degradation; Finite impulse response filter; Image analysis; Image coding; Image reconstruction; Laboratories; Spline; Wavelet analysis; Wavelet coefficients; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE

Conference_Location

Tampa, FL

Print_ISBN

0-7803-3088-9

Type

conf

DOI

10.1109/SECON.1996.510078

Filename

510078