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Proceedings Paper

Projection moiré using PSALM
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Paper Abstract

Phase Shifting And Logical Moiré (PSALM) is used to analyse projected gratings for profiling the topography of the object. Moiré fringes are generated through logical operations on the digitized image of the projected grating with a computer generated reference. Phase shifting is achieved by translating the reference grating. This enables profiles to be determined easily and with good sensitivity.

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: 10.1117/12.57495
Show Author Affiliations
Anand Krishna Asundi, Univ. of Hong Kong (Singapore)


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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