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On using Directional Information for Parameter Space Decomposition in Ellipse Detection

Aguado, A.S., Montiel, M.E. and Nixon, M.S. (1996) On using Directional Information for Parameter Space Decomposition in Ellipse Detection Pattern Recognition, 29, (3), 369--381.

Record type: Article


In this paper we use the parametric polar representation to extend the application of edge directional information from circle to ellipse extraction. As a result we obtain a mapping which decomposes the parameter space required for ellipse extraction into two independent sub-spaces and one final histogram accumulator. The mapping includes the tangent of the angle of the first and second directional derivatives. These tangents are computed by considering edge direction at two border points. We show that the use of gradient information for parameter space decomposition avoids the intensive point labelling imposed by geometric constraints used by other approaches.

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Published date: 1996
Organisations: Southampton Wireless Group


Local EPrints ID: 250059
ISSN: 0031-3203
PURE UUID: 2dc6332e-d156-4385-860a-73375ac601d0

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Date deposited: 04 May 1999
Last modified: 18 Jul 2017 10:44

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Author: A.S. Aguado
Author: M.E. Montiel
Author: M.S. Nixon

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