Active contours technique for fringe evaluation of complicated fringe patterns

Raghavendra Joishi; K. P. J. Reddy; G. M. Hegde

doi:10.1117/12.852751

14 April 2010 Active contours technique for fringe evaluation of complicated fringe patterns

Raghavendra Joishi, K. P. J. Reddy, G. M. Hegde

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 75224H (2010) https://doi.org/10.1117/12.852751
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

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.

Citation Download Citation

Raghavendra Joishi, K. P. J. Reddy, and G. M. Hegde "Active contours technique for fringe evaluation of complicated fringe patterns", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75224H (14 April 2010); https://doi.org/10.1117/12.852751

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