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JRM Vol.9 No.2 pp. 135-139
doi: 10.20965/jrm.1997.p0135
(1997)

Letter:

A Corner Detection Using Adaptive Octants Filter

Atsushi Sakai and Yoshihiko Nomura

Faculty of Electronic-Mechanical Engineering, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya-shi, 464-01 Japan

Received:
December 6, 1996
Accepted:
December 20, 1996
Published:
April 20, 1997
Keywords:
Corner detection, Edge, Octants filter
Abstract

We propose a method of corner detection algorithm using an adaptive octants filter paying attention to a characteristic of the edge pixel distribution around the corner. Changing the octants boundaries adaptively, we analyze the edge distribution among 8 octants for every edge pixel, and select some octants possible to contain edge segments. Furthermore, we extract some edge pixels as the corner candidates by evaluating the angles between the edge segments in the selected octants. The candidates are excessively extracted around the corner, and therefore, we find out the true corner using a cornerness measure.

Cite this article as:
Atsushi Sakai and Yoshihiko Nomura, “A Corner Detection Using Adaptive Octants Filter,” J. Robot. Mechatron., Vol.9, No.2, pp. 135-139, 1997.
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