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Proceedings Paper

Active contours technique for fringe evaluation of complicated fringe patterns
Author(s): Raghavendra Joishi; K. P. J. Reddy; G. M. Hegde
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Paper Abstract

An improved technique based on active contours approach is presented for the analysis of non-uniform finite fringe interferograms. The technique is validated by demonstrating its application in analyzing the interferomertic image having non-uniform fringe pattern generated by a supersonic flow in front of a blunt body. A filtering method for identifying the flow parameters is presented as an extension of this technique. Proposed technique also provides an estimate of the heterodyning spatial frequency.

Paper Details

Date Published: 14 April 2010
PDF: 8 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75224H (14 April 2010); doi: 10.1117/12.852751
Show Author Affiliations
Raghavendra Joishi, National Institute of Technology Surathkal (India)
K. P. J. Reddy, Indian Institute of Science Bangalore (India)
G. M. Hegde, Indian Institute of Science Bangalore (India)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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