Abstract

A technique is presented to determine surface contours of 3-D objects by laser speckle interferometry. A double exposure specklegram is recorded by giving the object a small tilt between exposures. Surface contours are obtained by Fourier filtering of the specklegram.

© 1981 Optical Society of America

Electronic speckle contouring

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J. Opt. Soc. Am. A 9(11) 2000-2008 (1992)

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