A modified morphological corner detector

Abstract

In this paper we propose a modified morphological corner detection method which finds convex and concave significant points using simple integer computation. We use the morphological peak extractor to detect convex corners and use a modified valley extractor to detect concave corners. Moreover, information of the distances between pixels on the boundary segment determined by two contiguous significant points and the chord connecting these two contiguous significant points can be applied to remedy the loosing corner due to the shape of the chosen structuring element. (C) 1998 Elsevier Science B.V. All rights reserved.