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Amplitude-only log Radon transform for geometric invariant shape descriptor

Identifieur interne : 000D80 ( Main/Merge ); précédent : 000D79; suivant : 000D81

Amplitude-only log Radon transform for geometric invariant shape descriptor

Auteurs : Makoto Hasegawa ; Salvatore Tabbone [France]

Source :

RBID : Hal:hal-01098678

English descriptors

Abstract

A shape descriptor combining the Radon transform, the amplitude extraction, and the log-mapping is proposed in this paper. It is invariant to shape rotation, scaling, and translation. Invariance to translation is achieved by amplitude extraction on the radial coordinate. Rotation and scaling are log-mapped into two-dimensional translations and recovered with the phase-only correlation function. In addition, all transformation parameters (rotating angle, scaling factor, and position shift) can be determined also. The efficiency of the proposed descriptor compared to existing methods is shown experimentally on different kind of datasets.

Url:
DOI: 10.1016/j.patcog.2013.07.024

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Hal:hal-01098678

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