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Proceedings Paper

Measurement of surface shape and deformation by phase-shifting image digital holography
Author(s): Ichirou Yamaguchi; Jun-ichi Kato; Hirokazu Matsuzaki
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Paper Abstract

Measurement of shape and deformation of diffusely reflecting surfaces by phase-shifting digital holography is presented that uses an imaging setup. The difference of the reconstructed phases before and after tilt of the object illumination beam provides the contour lines of the surface height, while that before and after object deformation delivers those of object displacement. This method enables measurements of both surface shape and deformation of 3D object of various sizes with the same optical system and the processing software. Suppression of speckle noise is also discussed.

Paper Details

Date Published: 19 June 2002
PDF: 6 pages
Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); doi: 10.1117/12.473542
Show Author Affiliations
Ichirou Yamaguchi, Riken-The Institute of Physical and Chemical Research Research (Japan)
Jun-ichi Kato, Riken-The Institute of Physical and Chemical Research (Japan)
Hirokazu Matsuzaki, Aoyama-Gakuin Univ. (Japan)

Published in SPIE Proceedings Vol. 4778:
Interferometry XI: Applications
Wolfgang Osten, Editor(s)

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