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Adaptation of Symmetric Positive Semi-Definite Matrices for the Analysis of Textured Images Cover

Adaptation of Symmetric Positive Semi-Definite Matrices for the Analysis of Textured Images

By: Adib Akl  
Open Access
|Mar 2018

Abstract

This paper addresses the analysis of textured images using the symmetric positive semi-definite matrix. In particular, a field of symmetric positive semi-definite matrices is used to estimate the structural information represented by the local orientation and the degree of anisotropy in structured and sinusoid-like textured images. In order to ensure faithful local structure estimation, an adaptive algorithm for the regularization of the extent of gradient fields smoothing is proposed. Results obtained on different texture samples show the strength of the proposed method in accurately representing the local variation of orientations in the underlying textured images, which paves the way towards an accurate analysis of the texture structures.

DOI: https://doi.org/10.2478/cait-2018-0005 | Journal eISSN: 1314-4081 | Journal ISSN: 1311-9702
Language: English
Page range: 51 - 68
Submitted on: Mar 14, 2017
Accepted on: Dec 20, 2017
Published on: Mar 30, 2018
Published by: Bulgarian Academy of Sciences, Institute of Information and Communication Technologies
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2018 Adib Akl, published by Bulgarian Academy of Sciences, Institute of Information and Communication Technologies
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.