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Regular | Open Access

A Comparison of Image Processing Techniques for Optical Interference Fringe Analysis

Muhammad FAROOQ1, Aasma ASLAM2, Babar HUSSAIN1,3( ), Ghazanfar HUSSAIN1, Masroor IKRAM4
National Institute of Lasers and Optronics, Lehtrar Road, Islamabad, 45650, Pakistan
Hazara University, Mansehra and NUST, Islamabad, 21300, Pakistan
University of North Carolina at Charlotte, Department of Electrical and Computer Engineering, 9201 University City Boulevard, Charlotte, 28223, USA
Pakistan Institute of Engineering and Applied Sciences, Islamabad, 45650, Pakistan
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Abstract

We present a comparison of different techniques for the analysis of the shift and tilt in optical interference fringes. Fringe center, Radon transform, and Gaussian approximation methods are used for fringe analysis. We have measured the tilt and shift between two relevant fringe patterns. The error in tilt measurement was about 2%, and the displacement of the order of few nanometers was measured by the fringe shift analysis. The comparison between the techniques is analyzed with respect to percentage error.

Keywords

Interferometryfringestiltshiftimaging

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Photonic Sensors
Volume 5 Issue 4,
December 2015
Pages 304-311
DOI: 10.1007/s13320-015-0254-z

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Cite this article:
FAROOQ M, ASLAM A, HUSSAIN B, et al. A Comparison of Image Processing Techniques for Optical Interference Fringe Analysis. Photonic Sensors, 2015, 5(4): 304-311. https://doi.org/10.1007/s13320-015-0254-z

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Received: 30 March 2015
Revised: 16 July 2015
Published: 26 August 2015
© The Author(s) 2015.

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