New direct methods for spatial-phase reconstruction from the fringe images

Valentin I. Vlad; Daniel Malacara-Doblado

doi:10.1117/12.203546

8 March 1995 New direct methods for spatial phase reconstruction from the fringe images

Valentin I. Vlad, Daniel Malacara-Doblado

Proceedings Volume 2461, ROMOPTO '94: Fourth Conference in Optics; (1995) https://doi.org/10.1117/12.203546
Event: ROMOPTO '94: 4th Conference on Optics, 1994, Bucharest, Romania

Abstract

In this paper, we demonstrate some direct spatial methods for the optical phase reconstruction: the smoothing method (with numerical averaging window) and the band-pass filtering method (with differential gaussian filter) in the (x,y)-domain for image recorded with a sinusoidal reference, the smoothing method for images recorded with a chirped radial symmetric reference and the band-pass filtering (with differential gaussian filter) in the (x,y)-domain for phase-modulated images recorded with an arbitrary reference. Comparisons between the methods in the (x,y)- and Fourier-domains, as well as the evaluation of the range of phase measurement in these methods are done.

Citation Download Citation

Valentin I. Vlad and Daniel Malacara-Doblado "New direct methods for spatial phase reconstruction from the fringe images", Proc. SPIE 2461, ROMOPTO '94: Fourth Conference in Optics, (8 March 1995); https://doi.org/10.1117/12.203546

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