Anisotropic diffusion with edge projection

Gang Qiao, Wei Zhang, Sei Ichiro Kamata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In image processing, anisotropic diffusion provides a forward method to remove noise while preserving edges accurate and sharp. However, due to the inappropriate edge estimation by gradient, some isolated noise points still exist and edge location is inaccurate. In this representation, isolated noise points and edges are distinguished by the significant difference of their "lengths", which are computed by orthogonally projecting their pixels to the corresponding normalized gradient directions and recording the number of the same projections. Combining gradient and "length" to estimate edges, isolated noise points are further suppressed while edges are re-located and enhanced.

Original languageEnglish
Title of host publicationProceedings - 4th International Congress on Image and Signal Processing, CISP 2011
Pages665-667
Number of pages3
DOIs
Publication statusPublished - 2011 Dec 1
Event4th International Congress on Image and Signal Processing, CISP 2011 - Shanghai, China
Duration: 2011 Oct 152011 Oct 17

Publication series

NameProceedings - 4th International Congress on Image and Signal Processing, CISP 2011
Volume2

Conference

Conference4th International Congress on Image and Signal Processing, CISP 2011
CountryChina
CityShanghai
Period11/10/1511/10/17

Keywords

  • Kirsch operator
  • anisotropic diffusion
  • noise smoothing while edge preserving
  • orthogonal projection

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Signal Processing

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  • Cite this

    Qiao, G., Zhang, W., & Kamata, S. I. (2011). Anisotropic diffusion with edge projection. In Proceedings - 4th International Congress on Image and Signal Processing, CISP 2011 (pp. 665-667). [6100326] (Proceedings - 4th International Congress on Image and Signal Processing, CISP 2011; Vol. 2). https://doi.org/10.1109/CISP.2011.6100326