Three-dimensional information acquiring and processing system using phase-shifting technique

Tie Qi Chen; Ke-shu Xu

doi:10.1117/12.140369

24 April 1992 Three-dimensional information acquiring and processing system using phase-shifting technique

Tie Qi Chen, Ke-shu Xu

Proceedings Volume 1731, Soviet-Chinese Joint Seminar on Holography and Optical Information Processing; (1992) https://doi.org/10.1117/12.140369
Event: Soviet-Chinese Joint Seminar on Holography and Optical Information Processing, 1991, Bishkek, Kirgizstan, Russian Federation

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.

Citation Download Citation

Tie Qi Chen and Ke-shu Xu "Three-dimensional information acquiring and processing system using phase-shifting technique", Proc. SPIE 1731, Soviet-Chinese Joint Seminar on Holography and Optical Information Processing, (24 April 1992); https://doi.org/10.1117/12.140369

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