A High-speed Digital Laser Grating Projection System for the Measurement of 3-dimensional Shapes
Journal of the Optical Society of Korea, Vol. 13, Issue 2, pp. 251-255 (2009)
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Abstract
In the non-contact 3-dimensional (3D) shape measurements, the fringe pattern projection method based on the phase-shifting technique has been considered very effective for its high speed and accuracy. The digital fringe projector in particular has great flexibility in generating fringe patterns since the patterns can be controlled easily by the computer program. In this work, we have developed a high-speed digital laser grating projection system using a laser diode and a polygon mirror, and evaluated its performance. It has been demonstrated that all the optical measurements required to find out the profile of a 3D object could be carried out within 31 ms, which confirmed the validity of our 3D measurement system. The result implies the more important fact that the speed in 3D measurement can be enhanced remarkably since, in our novel system, there is no device like a LCD or DMD whose response time limits the measurement speed.
© 2009 Optical Society of Korea
OCIS Codes
(100.0100) Image processing : Image processing
(110.0110) Imaging systems : Imaging systems
(110.6880) Imaging systems : Three-dimensional image acquisition
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
History
Original Manuscript: May 11, 2009
Revised Manuscript: June 11, 2009
Manuscript Accepted: June 12, 2009
Published: June 25, 2009
Citation
Yoon-Chang Park, Chul-Geun Park, Seong-Joon Ahn, Moon-Ho Kang, and Seung-Joon Ahn, "A High-speed Digital Laser Grating Projection System for the Measurement of 3-dimensional Shapes," J. Opt. Soc. Korea 13, 251-255 (2009)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-13-2-251
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