The search functionality is under construction.
The search functionality is under construction.

Robust Edge Detection by Independent Component Analysis in Noisy Images

Xian-Hua HAN, Yen-Wei CHEN, Zensho NAKAO

  • Full Text Views

    0

  • Cite this

Summary :

We propose a robust edge detection method based on independent component analysis (ICA). It is known that most of the basis functions extracted from natural images by ICA are sparse and similar to localized and oriented receptive fields, and in the proposed edge detection method, a target image is first transformed by ICA basis functions and then the edges are detected or reconstructed with sparse components only. Furthermore, by applying a shrinkage algorithm to filter out the components of noise in the ICA domain, we can readily obtain the sparse components of the original image, resulting in a kind of robust edge detection even for a noisy image with a very low SN ratio. The efficiency of the proposed method is demonstrated by experiments with some natural images.

Publication
IEICE TRANSACTIONS on Information Vol.E87-D No.9 pp.2204-2211
Publication Date
2004/09/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Image Processing and Video Processing

Authors

Keyword