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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 1, Iss. 5 — May. 5, 2006

High-resolution, real-time 3D absolute coordinate measurement based on a phase-shifting method

Song Zhang and Shing-Tung Yau  »View Author Affiliations

Optics Express, Vol. 14, Issue 7, pp. 2644-2649 (2006)

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We describe a high-resolution, real-time 3D absolute coordinate measurement system based on a phase-shifting method. It acquires 3D shape at 30 frames per second (fps), with 266K points per frame. A tiny marker is encoded in the projected fringe pattern, and detected by software from the texture image and the gamma map. Absolute 3D coordinates are obtained from the detected marker position and the calibrated system parameters. To demonstrate the performance of the system, we measure a hand moving over a depth distance of approximately 700 mm, and human faces with expressions. Applications of such a system include manufacturing, inspection, entertainment, security, medical imaging.

© 2006 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(110.6880) Imaging systems : Three-dimensional image acquisition
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.5800) Instrumentation, measurement, and metrology : Scanners
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(150.6910) Machine vision : Three-dimensional sensing

ToC Category:
Imaging Systems

Original Manuscript: January 31, 2006
Revised Manuscript: March 16, 2006
Manuscript Accepted: March 16, 2006
Published: April 3, 2006

Virtual Issues
Vol. 1, Iss. 5 Virtual Journal for Biomedical Optics

Song Zhang and Shing-Tung Yau, "High-resolution, real-time 3D absolute coordinate measurement based on a phase-shifting method," Opt. Express 14, 2644-2649 (2006)

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