Translator Disclaimer
18 August 1995 Measurement of time-dependent displacement using dual speckle pattern phase-shifting TV holography
Author Affiliations +
Proceedings Volume 2622, Optical Engineering Midwest '95; (1995) https://doi.org/10.1117/12.216850
Event: Optical Engineering Midwest '95, 1995, Chicago, IL, United States
Abstract
This paper presents a method for measuring time dependent displacement using a dual speckle pattern acquisition and single camera TV holographic system. Two speckle patterns with 90 degree phase difference are acquired simultaneously. As the displacement changes with respect to time, a series of dual speckle patterns can be digitized into a computer image processing system. A Fourier transformation is used to remove the DC terms of the speckle patterns. A phase unwrapping algorithm is employed to calculate the phase distribution related to the time dependent displacement. The theoretical concept together with experimental simulation are presented.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christopher T. Griffen, Fang Chen, and Y.Y. Hung "Measurement of time-dependent displacement using dual speckle pattern phase-shifting TV holography", Proc. SPIE 2622, Optical Engineering Midwest '95, (18 August 1995); https://doi.org/10.1117/12.216850
PROCEEDINGS
9 PAGES


SHARE
Advertisement
Advertisement
Back to Top