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Proceedings Paper

Three-dimensional information acquiring and processing system using phase-shifting technique
Author(s): Tie Qi Chen; Ke-shu Xu
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Paper Abstract

An optical measuring system with high precision, high speed, and a simple configuration is introduced. The surface profile of a 3-D diffuse object is obtained by measuring the phase of the intensity distribution deformed by the surface. The phase-shifting technique is performed with an electro-optic modulator, with a CCD used to detect the distorted images and a 286AT computer to process the data. The experimental result of a mannequin head is presented, which shows that a range up to 10 cm and a resolution better than 0.065 mm are available.

Paper Details

Date Published: 24 April 1992
PDF: 5 pages
Proc. SPIE 1731, Soviet-Chinese Joint Seminar on Holography and Optical Information Processing, (24 April 1992); doi: 10.1117/12.140369
Show Author Affiliations
Tie Qi Chen, Fudan Univ. (China)
Ke-shu Xu, Fudan Univ. (China)


Published in SPIE Proceedings Vol. 1731:
Soviet-Chinese Joint Seminar on Holography and Optical Information Processing

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