Noise reduction in phase maps with 2π phase jumps by means of the heat equation

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Resumen

A new algorithm for filtering noise in phase maps that contain 2p discontinuities is presented. The algorithm is based on a thermal model that uses the heat equation to perform low-pass filtering. A similar approach is used in image processing for filtering noise, but the edges are generally distorted because of their inherent high frequencies. A solution that consists in redefining the spatial derivatives is proposed here. Simulation results are presented and discussed.

Idioma originalInglés
Páginas (desde-hasta)652-655
Número de páginas4
PublicaciónApplied Optics
Volumen40
N.º5
DOI
EstadoPublicada - 10 feb. 2001
Publicado de forma externa

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