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Proceedings Paper

Determination of displacements, strain, and rotations from holographic interferometry data using a 2-D fringe order function
Author(s): Armando Albertazzi
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Paper Abstract

This work presents an approach to compute, at the same time, the displacement field and its derivatives from a two-dimensional representation of the fringe order function. Those concepts are very convenient to be used with digital image processing systems. Some simplifications of those general equations for particular cases are discussed. The complete displacement field and its derivatives, strains and rotations are measured in a disc under diametrical compression as an example of application. A digital image filtering technique, for speckle noise reduction, is also introduced.

Paper Details

Date Published: 1 December 1991
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Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57461
Show Author Affiliations
Armando Albertazzi, Univ. Federal de Santa Catarina (Brazil)


Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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