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Proceedings Paper

Evaluation of interference patterns: a comparison of methods
Author(s): Thomas M. Kreis; Juergen Geldmacher
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Paper Abstract

Methods for determination of the interference phase distributions from interference patterns are presented and the most important methods, which are fringe tracking, temporal heterodyning, phase shifting and Fourier transform evaluation are compared with regard to experimental requirements, achievable resolution and precision, as well as inherent noise suppression and image enhancement. The comparison shows: whenever phase shifting is possible, it is the best choice. If only one interference pattern is offered, Fourier transform evaluation is recommendable.

Paper Details

Date Published: 1 December 1991
Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57464
Show Author Affiliations
Thomas M. Kreis, BIAS (Germany)
Juergen Geldmacher, BIAS (Germany)

Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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