Optimal image correlation in experimental mechanics

Zella L. Kahn-Jetter; Nand K. Jha; Harmeet Bhatia

doi:10.1117/12.166931

1 April 1994 Optimal image correlation in experimental mechanics

Zella L. Kahn-Jetter, Nand K. Jha, Harmeet Bhatia

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Optical Engineering, Vol. 33, Issue 4, (April 1994). https://doi.org/10.1117/12.166931

Abstract

The integration of optimization techniques for use in digital image correlation problems in experimental mechanics is discussed. Stereo sets of images of a speckle pattern on a loaded body are correlated using four types of optimization routines. The results obtained using the gradient-based first-order method and nongradient-based pattern search, simplex, and Powell's methods compare extremely well with the original experimental results. The effectiveness and accuracy of these different optimal image processing techniques have also been analyzed and found suitable for this example

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Zella L. Kahn-Jetter, Nand K. Jha, and Harmeet Bhatia "Optimal image correlation in experimental mechanics," Optical Engineering 33(4), (1 April 1994). https://doi.org/10.1117/12.166931

Published: 1 April 1994

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