Calibration method using sampling moire method for phase-shifting digital holography with multiple imaging devices

Motoharu Fujigaki; Ryosuke Goto; Yorinobu Murata

doi:10.1117/12.930744

13 September 2012 Calibration method using sampling moire method for phase-shifting digital holography with multiple imaging devices

Motoharu Fujigaki, Ryosuke Goto, Yorinobu Murata

Author Affiliations +

Proceedings Volume 8494, Interferometry XVI: Applications; 849408 (2012) https://doi.org/10.1117/12.930744
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Phase-shifting digital holography is a convenient method to measure displacement and strain distributions. To simplify the optical setup is required for producing more compact equipment. In this paper, a calibration method using a sampling moire method for phase-shifting digital holography with multiple imaging devices is proposed. It is, however, difficult to find the corresponding points on the each reconstructed images taken by each imaging sensors. A 2-D grating reference plate is used. The two-dimensional (2-D) phase map of the 2-D grating pattern can be analyzed accurately. The principle and the experimental results to apply to the deformation measurement are shown.

Citation Download Citation

Motoharu Fujigaki, Ryosuke Goto, and Yorinobu Murata "Calibration method using sampling moire method for phase-shifting digital holography with multiple imaging devices", Proc. SPIE 8494, Interferometry XVI: Applications, 849408 (13 September 2012); https://doi.org/10.1117/12.930744

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