CURVATURE APPROXIMATION FROM PARABOLIC SECTORS

Ximo Gual-Arnau, Maria Victoria Ibáñez Gual, Juan Monterde

Abstract

We propose an invariant three-point curvature approximation for plane curves based on the arc of a parabolic sector, and we analyze how closely this approximation is to the true curvature of the curve. We compare our results with the obtained with other invariant three-point curvature approximations. Finally, an application is discussed.


Keywords
curvature; digital curve; shape analysis; three-point curvature approximation

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DOI: 10.5566/ias.1702

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Image Analysis & Stereology
EISSN 1854-5165 (Electronic version)
ISSN 1580-3139 (Printed version)