Edge detection and image restoration with anisotropic topological gradient

Topological asymptotic analysis provides tools to detect edges and their orientation. The purpose of this article is to show the possibilities of anisotropic topological gradient in image restoration. Previous methods based on the topological gradient used isotropic diffusion to restore images. Thes...

Full description

Saved in:
Bibliographic Details
Main Authors: Larnier, S, Fehrenbach, Jérôme
Format: Conference Proceeding
Language:English
Subjects:
anisotropic diffusion
Anisotropic magnetoresistance
Edge detection
Image edge detection
Image restoration
topological gradient
Citations: Items that cite this one
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Topological asymptotic analysis provides tools to detect edges and their orientation. The purpose of this article is to show the possibilities of anisotropic topological gradient in image restoration. Previous methods based on the topological gradient used isotropic diffusion to restore images. These methods are improved here by using anisotropic diffusion and differentiating between principal and secondary edges. A texture detector is also used to increase the diffusion outside textured regions. Numerical results are presented, including a comparison with the Non-Local Means method. The algorithms presented here lead to results similar to the Non-Local Means (in terms of quality), and shorter processing times.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2010.5495448