Dynamic-threshold determination by local and global edge evaluation

Svetha Venkatesh; Paul L. Rosin

doi:10.1117/12.141789

11 March 1993 Dynamic-threshold determination by local and global edge evaluation

Svetha Venkatesh, Paul L. Rosin

Proceedings Volume 1964, Applications of Artificial Intelligence 1993: Machine Vision and Robotics; (1993) https://doi.org/10.1117/12.141789
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

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.

Citation Download Citation

Svetha Venkatesh and Paul L. Rosin "Dynamic-threshold determination by local and global edge evaluation", Proc. SPIE 1964, Applications of Artificial Intelligence 1993: Machine Vision and Robotics, (11 March 1993); https://doi.org/10.1117/12.141789

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