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Proceedings Paper

Dynamic-threshold determination by local and global edge evaluation
Author(s): Svetha Venkatesh; Paul L. Rosin
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Paper Abstract

In this paper we consider two method for automatically determining values for thresholding edge maps. Rather than use statistical methods these methods are based on the figural properties of the edges. Two approaches are taken. We investigate applying an edge evaluation measure based on edge continuity and edge thinness to determine the threshold on edge strength. However, the technique is not valid when applied to edge detector outputs that are one-pixel wide. In this case, we use a measure based on work by Lowe for assessing edges. This measure is based on length and average strength of complete linked edge lists.

Paper Details

Date Published: 11 March 1993
PDF: 11 pages
Proc. SPIE 1964, Applications of Artificial Intelligence 1993: Machine Vision and Robotics, (11 March 1993); doi: 10.1117/12.141789
Show Author Affiliations
Svetha Venkatesh, Curtin Univ. of Technology (Australia)
Paul L. Rosin, Curtin Univ. of Technology (Australia)


Published in SPIE Proceedings Vol. 1964:
Applications of Artificial Intelligence 1993: Machine Vision and Robotics
Kim L. Boyer; Louise Stark, Editor(s)

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