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Proceedings Paper

Comparative analysis of digital and optical speckle displacement techniques for study of in-plane surface strains
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Paper Abstract

The comparative analysis of the digital speckle-displacement measurement technique and the optical speckle-displacement correlation technique is carried out. Some versions of a joint transform correlator (JTC) architecture, namely a conventional JTC, a JTC with median thresholding, a JTC with subset median thresholding, and a fringe adjusted filter JTC, are used for study of in-plane rigid body displacements. The systematic and random errors of speckle pattern's mean displacement calculated by using the mentioned above techniques are compared. The robustness of the digital speckle-displacement measurement technique and four JTC versions to input noise of speckle patterns and output noise of a correlation response is studied.

Paper Details

Date Published: 27 May 2003
PDF: 6 pages
Proc. SPIE 4933, Speckle Metrology 2003, (27 May 2003); doi: 10.1117/12.516625
Show Author Affiliations
Leonid I. Muravsky, Karpenko Physico-Mechanical Institute (Ukraine)
Olexander P. Maksymenko, Karpenko Physico-Mechanical Institute (Ukraine)
Olexandaer M. Sakharuk, Karpenko Physico-Mechanical Institute (Ukraine)

Published in SPIE Proceedings Vol. 4933:
Speckle Metrology 2003
Kay Gastinger; Ole Johan Lokberg; Svein Winther, Editor(s)

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