Document Type

Journal Article

Department/Unit

Department of Mathematics

Title

Explicit coherence enhancing filter with spatial adaptive elliptical kernel

Language

English

Abstract

The goal of this letter is to provide an elliptical filter to improve image coherence for the task of image smoothing and inpainting. The kernel of this filter is adaptively weighted and its shape is determined by local coherence estimation. The long axis of its ellipse is the same as the coherence direction and we put more weight there to enhance coherence. Compared with the related anisotropic partial differential equations (PDEs) or wavelet shrinkage methods, the proposed filter is extremely simple, instinctive and easy to code. Numerical examples and comparisons illustrate clearly the good performance of the proposed filter. © 2012 IEEE.

Keywords

Coherence, elliptical kernel, inpainting, structure tensor

Publication Date

2012

Source Publication Title

IEEE Signal Processing Letters

Volume

19

Issue

9

Start Page

555

End Page

558

Publisher

Institute of Electrical and Electronics Engineers

DOI

10.1109/LSP.2012.2206582

Link to Publisher's Edition

http://dx.doi.org/10.1109/LSP.2012.2206582

ISSN (print)

10709908

ISSN (electronic)

15582361

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