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27 May 2003 Comparative analysis of digital and optical speckle displacement techniques for study of in-plane surface strains
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Proceedings Volume 4933, Speckle Metrology 2003; (2003) https://doi.org/10.1117/12.516625
Event: Speckle Metrology 2003, 2003, Trondheim, Norway
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.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Leonid I. Muravsky, Olexander P. Maksymenko, and Olexandaer M. Sakharuk "Comparative analysis of digital and optical speckle displacement techniques for study of in-plane surface strains", Proc. SPIE 4933, Speckle Metrology 2003, (27 May 2003); https://doi.org/10.1117/12.516625
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