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Proceedings Paper

Automatic Processing Of Speckle Photography Fringes: Comparison Of Two Methods
Author(s): G. H. Kaufmann; H. D. Navone
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Paper Abstract

Speckle photography is a powerful method for measuring in-plane displacement and surface rotation. Quantitative evaluation is performed using a pointwise approach based in the analysis of cosine square fringes which modulate a diffraction halo. The fringe spacing is inversely proportional to the displacement of the speckle pattern and the fringes are perpendicular to the displacement vector. Complete analysis of a 2-D strain field involves the measurement of the spacing and the direction of the fringe pattern on a square mesh covering the specklegram. However, this manual procedure becomes impractical when a large number of measurements are needed.

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967398
Show Author Affiliations
G. H. Kaufmann, Instituto de Fisica Rosario (Republica Argentina)
H. D. Navone, Instituto de Fisica Rosario (Republica Argentina)

Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age
Henri H. Arsenault, Editor(s)

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