Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1987.07b
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- Pages.1360-1363
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- 1987
Edge Detection Using Mean Difference within a Connected Bimodal Region
이분된 지역평균의 차를 이용한 경계점 검출법
- Jung, Moon-Jo (Dept. of Electronics, Kyungpook National University) ;
- Shim, Young-Serk (Dept. of Electronics, Kyungpook National University) ;
- Hwang, Chan-Sik (Dept. of Electronics, Kyungpook National University)
- Published : 1987.07.03
Abstract
Two edge detection methods are devised and tested. First one makes use of mean-difference between two connected regions after bimodal thresholding within a local window. It appears experimentally to provide reduced edge width maintaining good connectivity. It seems due to the use of the threshold obtained from a larger neighborhood. Second one uses additionally the gradient information to detect approximate zero crossing points of second directional derivative. This provides edges thinned nearly to one pixel width.
Keywords