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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 17 — Aug. 21, 2006
  • pp: 7692–7698

Human face measurement by projecting bandlimited random patterns

A. Wiegmann, H. Wagner, and R. Kowarschik  »View Author Affiliations

Optics Express, Vol. 14, Issue 17, pp. 7692-7698 (2006)

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This article presents a fast and accurate method to measure human faces for medical applications. To encode an object point, several random patterns are projected. A correlation technique, which takes only the area of one pixel into account, is used to locate the homologous points. It could be shown that band limited random patterns are helpful for noise reduction. The comparison of the point cloud of a measured plane with an ideal one showed a standard deviation less then 50μm. Furthermore a depth difference of 20μm is detectable.

© 2006 Optical Society of America

OCIS Codes
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(150.6910) Machine vision : Three-dimensional sensing
(170.1850) Medical optics and biotechnology : Dentistry
(170.3890) Medical optics and biotechnology : Medical optics instrumentation

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: March 27, 2006
Revised Manuscript: July 12, 2006
Manuscript Accepted: July 14, 2006
Published: August 21, 2006

Virtual Issues
Vol. 1, Iss. 9 Virtual Journal for Biomedical Optics

Axel Wiegmann, Holger Wagner, and Richard Kowarschik, "Human face measurement by projecting bandlimited random patterns," Opt. Express 14, 7692-7698 (2006)

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