Share Email Print
cover

Proceedings Paper

Wavelet-based approaches versus subband coding techniques for still-image coding
Author(s): Manuel A. Sola; Sebastia Sallent-Ribes
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In this paper, the performance of filters implied in the discrete wavelet transform approach is compared with a set of filters of common application in image processing. A multidimensional multirate codec is designed in which the best subband decomposition and coding is jointly obtained by minimization of a rate-distortion criterion. We also introduce the idea of directional sensitivity based on the initial sampling lattice. This allows the codec to adapt better to the spectral content of the signal. Finally, taking as a starting point the continuous wavelet transform, we propose a discrete multiresolution analysis that would lead to new discrete transforms of special interest when analyzing discrete scalings and shiftings: the completely discrete wavelet transform.

Paper Details

Date Published: 11 October 1994
PDF: 11 pages
Proc. SPIE 2303, Wavelet Applications in Signal and Image Processing II, (11 October 1994); doi: 10.1117/12.188768
Show Author Affiliations
Manuel A. Sola, Univ. Politecnica de Catalunya (Spain)
Sebastia Sallent-Ribes, Univ. Politecnica de Catalunya (Spain)


Published in SPIE Proceedings Vol. 2303:
Wavelet Applications in Signal and Image Processing II
Andrew F. Laine; Michael A. Unser, Editor(s)

© SPIE. Terms of Use
Back to Top