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Proceedings Paper

360-degree 3D profilometry
Author(s): Yuanhe Song; Hong Zhao; Wenyi Chen; Yushan Tan
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Paper Abstract

A new method of 360 degree turning 3D shape measurement in which light sectioning and phase shifting techniques are both used is presented in this paper. A sine light field is applied in the projected light stripe, meanwhile phase shifting technique is used to calculate phases of the light slit. Thereafter wrapped phase distribution of the slit is formed and the unwrapping process is made by means of the height information based on the light sectioning method. Therefore phase measuring results with better precision can be obtained. At last the target 3D shape data can be produced according to geometric relationships between phases and the object heights. The principles of this method are discussed in detail and experimental results are shown in this paper.

Paper Details

Date Published: 10 December 1997
PDF: 5 pages
Proc. SPIE 3204, Three-Dimensional Imaging and Laser-based Systems for Metrology and Inspection III, (10 December 1997); doi: 10.1117/12.294458
Show Author Affiliations
Yuanhe Song, Xi'an Jiaotong Univ. (China)
Hong Zhao, Xi'an Jiaotong Univ. (China)
Wenyi Chen, Xi'an Jiaotong Univ. (China)
Yushan Tan, Xi'an Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 3204:
Three-Dimensional Imaging and Laser-based Systems for Metrology and Inspection III
Kevin G. Harding; Donald J. Svetkoff, Editor(s)

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