Phase shifting calibrated with digital image correlation method

Ming Jiang; H. Y. Tam; Xiao Yuan He

doi:10.1117/12.621675

12 April 2005 Phase shifting calibrated with digital image correlation method

Ming Jiang, H. Y. Tam, Xiao Yuan He

Proceedings Volume 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics; (2005) https://doi.org/10.1117/12.621675
Event: Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, 2004, -, Singapore

Abstract

Three-dimensional (3D) shape measurement can be accurately performed using sinusoid grating projection. However, the projection technique requires very accurate phase shifting of the grating. A method for phase shifting calibration which utilizes gray value correlation of image patterns is presented. The method enables calibration to be performed at sub-pixel accuracy. Experiments were carried out to verify the proposed calibration method.

Citation Download Citation

Ming Jiang, H. Y. Tam, and Xiao Yuan He "Phase shifting calibrated with digital image correlation method", Proc. SPIE 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, (12 April 2005); https://doi.org/10.1117/12.621675

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