CORNER DETECTION BY LOCAL HISTOGRAMS OF CONTOUR CHAIN CODE

Authors
ARREBOLA F BANDERA A CAMACHO P SANDOVAL F
Citation
F. Arrebola et al., CORNER DETECTION BY LOCAL HISTOGRAMS OF CONTOUR CHAIN CODE, Electronics Letters, 33(21), 1997, pp. 1769-1771
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
33
Issue
21
Year of publication
1997
Pages
1769 - 1771
Database
ISI
SICI code
0013-5194(1997)33:21<1769:CDBLHO>2.0.ZU;2-D
Abstract
A new method for determining the shape of an object by obtaining its d ominant points or border corners is presented. The algorithm uses the contour chain code as descriptor and calculates the curvature of each border point, comparing two histograms of the chain code. The method i s not only fast, with the detected corners stable to rotations and sca ling, but also the curvature function presents a high signal-noise rel ationship, and thus offers excellent performance for real contours.