Study on nonlocal morphological operators

Author

Salembier, Philippe

Author_Institution

Signal Theor. & Commun. Dept., Tech. Univ. of Catalonia, Barcelona, Spain

fYear

2009

fDate

7-10 Nov. 2009

Firstpage

2269

Lastpage

2272

Abstract

This paper studies nonlocal morphological operators. Following the strategy proposed for the Nonlocal means filter, these operators are based on a local and adaptive definition of the structuring element which is specified by searching for patches in the image that are similar to the one surrounding the pixel being filtered. After presenting the basic nonlocal morphological operators using generic structuring elements, we study their robustness in the presence of noise. Then, we illustrate the interest of some nonlocal morphological operators using flat structuring elements for denoising.

Keywords

filtering theory; image denoising; mathematical morphology; flat structuring elements; image denoising; image patches; nonlocal means filter; nonlocal morphological operators; structuring element; Adaptive filters; Filtering; Morphology; Noise cancellation; Noise level; Noise reduction; Noise robustness; Nonlinear filters; Pixel; Signal processing; Adaptive structuring element; Nonlocal mathematical morphology; Nonlocal means;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing (ICIP), 2009 16th IEEE International Conference on

Conference_Location

Cairo

ISSN

1522-4880

Print_ISBN

978-1-4244-5653-6

Electronic_ISBN

1522-4880

Type

conf

DOI

10.1109/ICIP.2009.5414374

Filename

5414374