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Received:September 02, 2006 Revised:December 06, 2006
Received:September 02, 2006 Revised:December 06, 2006
Abstract:An image filter called the pseudosphere filter is presented in this paper. An edge-preserving parameter is introduced besides a scale parameter in the pseudosphere filter, and thus a better trade-off between image smoothing and edge locating can be obtained by using it. A pseudosphere-based edge detector is built by replacing the Gaussian filter in the classic Canny edge detector with the pseudosphere filter. Experimental results show that, by comparing with the classic Canny edge detector, in the case of having the same smoothness, pseudosphere-based edge detector offers a better precision for edge locating.
keywords: tractrix filter pseudosphere filter edge detector
Foundation items:
Author Name | Affiliation |
WANG Zhi-Heng | 中国科学院 自动化研究所 模式识别国家重点实验室,北京 100080 |
WU Fu-Chao | 中国科学院 自动化研究所 模式识别国家重点实验室,北京 100080 |
Reference text:
WANG Zhi-Heng,WU Fu-Chao.Pseudosphere Filter and Edge Detection.Journal of Software,2008,19(4):803-816
WANG Zhi-Heng,WU Fu-Chao.Pseudosphere Filter and Edge Detection.Journal of Software,2008,19(4):803-816