Temporal phase processing with compression in interferometry

Kar Tien Ang; Tuck Wah Ng

doi:10.1117/12.621498

12 April 2005 Temporal phase processing with compression in interferometry

Kar Tien Ang, Tuck Wah Ng

Proceedings Volume 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics; (2005) https://doi.org/10.1117/12.621498
Event: Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, 2004, -, Singapore

Abstract

Interferometry is increasingly used in transient phenomena studies. Temporal fringe pattern analysis is ideal for this form of study but necessitates large data storage. Current compression schemes do not facilitate efficient data retrieval and may even result in important data loss. Here, we describe an encoding scheme that results in low crucial data loss and performs temporal fringe analysis at the same time. From the encoded data, intensity fringe patterns and phase maps can be retrieved with ease. The scheme is demonstrated here with simulated wavefront interferometry temporal fringe patterns albeit it portends usage in other forms of fringe-based techniques as well.

Citation Download Citation

Kar Tien Ang and Tuck Wah Ng "Temporal phase processing with compression in interferometry", Proc. SPIE 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, (12 April 2005); https://doi.org/10.1117/12.621498

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KEYWORDS

Fringe analysis

Interferometry

Phase shift keying

Data storage

Modulation

Wavefronts

Computer programming

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