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Proceedings Paper

Method of edge detection on bi-stable system
Author(s): Yibo Zheng; Lei Zhang; Xu Liu
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Paper Abstract

In this paper, a new algorithm is proposed for edge detection. A nonliear reaction diffusion equation is employed to extract the image edges. The mechanism of the new algorithm is based on the local dynamics of the reaction diffusion system. Three characteristics of dynamics including excitable, Turing/Hopf instability, and bistable dyanmics can be obtained depending on the control parameters. In the bistable region the system has the ability to detect the edges of images exactlly. Some of the best results are attained from a number of standard test problems. Compared with the conventional methods, the new algorithm indicates a higher accuracy and continuity for the image. Moreover, the edge detection process is not sensitive to the noise.

Paper Details

Date Published: 5 March 2008
PDF: 6 pages
Proc. SPIE 6623, International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing, 66230N (5 March 2008); doi: 10.1117/12.791411
Show Author Affiliations
Yibo Zheng, Shijiazhuang Univ. of Economics (China)
Lei Zhang, Shijiazhuang Univ. of Economics (China)
Xu Liu, Hebei Univ. of Engineering (China)

Published in SPIE Proceedings Vol. 6623:
International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing

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