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research article

Multiple signal classification technique for phase estimation from a fringe pattern

Rajshekhar, G.  
•
Rastogi, Pramod  
2012
Applied Optics

The paper introduces a multiple signal classification technique based method for fringe analysis. In the proposed method, the phase of a fringe pattern is locally approximated as a polynomial. The polynomial phase signal is then transformed to obtain signals comprising of only even- or odd-order polynomial coefficients. Subsequently, covariance matrix formulation is applied, and the two sets of coefficients are jointly estimated from the noise subspace of the covariance matrix using the multiple signal classification technique. The method allows simultaneous estimation of multiple coefficients and provides phase without the requirement of complex unwrapping algorithms. The effectiveness of the proposed method is validated through numerical simulation.

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Type
research article
DOI
10.1364/AO.51.005869
Web of Science ID

WOS:000308076600016

Author(s)
Rajshekhar, G.  
Rastogi, Pramod  
Date Issued

2012

Publisher

Optical Society of America

Published in
Applied Optics
Volume

51

Issue

24

Start page

5869

End page

5875

Subjects

fringe analysis

•

multiple signal classification technique

•

phase estimation

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
IMAC  
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/84531
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