An efficient quantization technique for wavelet coefficients of fingerprint images

QSpace/Manakin Repository

An efficient quantization technique for wavelet coefficients of fingerprint images

Show full item record


Title: An efficient quantization technique for wavelet coefficients of fingerprint images
Author: Kasaei, S; Deriche, M; Boashash, B
Abstract: In this paper, a novel quantization scheme for the wavelet coefficients is introduced. Using the wavelet packet transform (WPT) and lattice vector quantization (LVQ), we present here a new lattice optimization scheme based on an accurate model for the distribution of the wavelet coefficients. The model is based on the generalized gaussian distribution (GGD). A least squares algorithm on a non-linear function of the shape parameter is formulated to estimate the model parameters. The proposed algorithm adapts to non-stationarity in input images and to given bit rates. Compared to other wavelet-based algorithms, the technique proposed here results in higher reconstructed image qualities for identical bit rates.
Description: A new quantization technique for wavelet coefficients is designed based on an accurate distribution model of wavelet coefficients in each sub band aimed at achieving the best rate-distortion function. (Additional details can be found in the comprehensive book on Time-Frequency Signal Analysis and Processing (see http://www.elsevier.com/locate/isbn/0080443354). In addition, the most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated).
URI: http://hdl.handle.net/10576/10762
Date: 1997-08

Files in this item

Files Size Format View
Boashash-Kasaei ... on-Wavelet-Fingerprint.pdf 462.3Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record

Search QSpace


Advanced Search

Browse

My Account