17 August 2015 Acquisition of multiple phase derivatives from a single frame in digital holographic interferometry
Author Affiliations +
Abstract
This paper proposes a technique to extract two-dimensional multiple phase derivatives (strains, slopes, and shearing strains) from a single frame of the interference fringe pattern recorded in an optical setup with multiple illumination beams. In the proposed method, the interference field is modeled as a multicomponent complex sinusoid in an analysis window around each pixel. The frequencies of these sinusoids provide the estimates of the spatially varying phase derivatives. Matrix enhancement and matrix pencil-based technique is utilized to accurately estimate the multiple frequencies. A numerical example is provided to test the performance of the proposed method in the presence of noise. Experimental results are given to substantiate its applicability in the simultaneous estimation of multiple phase derivatives in a multiwave digital holographic interferometry setup.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Rishikesh Kulkarni, Rishikesh Kulkarni, Pramod Rastogi, Pramod Rastogi, } "Acquisition of multiple phase derivatives from a single frame in digital holographic interferometry," Optical Engineering 54(8), 084109 (17 August 2015). https://doi.org/10.1117/1.OE.54.8.084109 . Submission:
JOURNAL ARTICLE
7 PAGES


SHARE
RELATED CONTENT

High-resolution computer-aided moire
Proceedings of SPIE (November 30 1991)
Methods of digital holography: a comparison
Proceedings of SPIE (September 16 1997)
Digital holographic interferometry in quasi real time
Proceedings of SPIE (November 20 2003)

Back to Top