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Generic polar harmonic transforms for invariant image representation

Identifieur interne : 000D62 ( Main/Exploration ); précédent : 000D61; suivant : 000D63

Generic polar harmonic transforms for invariant image representation

Auteurs : Thai V. Hoang [France] ; Salvatore Tabbone [France]

Source :

RBID : Hal:hal-01083722

English descriptors

Abstract

This paper introduces four classes of rotation-invariant orthogonal moments by generalizing four existing moments that use harmonic functions in their radial kernels. Members of these classes share beneficial properties for image representation and pattern recognition like orthogonality and rotation-invariance. The kernel sets of these generic harmonic function-based moments are complete in the Hilbert space of square-integrable continuous complex-valued functions. Due to their resemble definition, the computation of these kernels maintains the simplicity and numerical stability of existing harmonic function-based moments. In addition, each member of one of these classes has distinctive properties that depend on the value of a parameter, making it more suitable for some particular applications. Comparison with existing orthogonal moments defined based on Jacobi polynomials and eigenfunctions has been carried out and experimental results show the effectiveness of these classes of moments in terms of representation capability and discrimination power.

Url:
DOI: 10.1016/j.imavis.2014.04.016


Affiliations:


Links toward previous steps (curation, corpus...)


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