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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 1 — Jan. 3, 2011

3D localization of a labeled target by means of a stereo vision configuration with subvoxel resolution

Néstor A. Arias H., Patrick Sandoz, Jaime E. Meneses, Miguel A. Suarez, and Tijani Gharbi  »View Author Affiliations


Optics Express, Vol. 18, Issue 23, pp. 24152-24162 (2010)
http://dx.doi.org/10.1364/OE.18.024152


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Abstract

We present a method for the visual measurement of the 3D position and orientation of a moving target. Three dimensional sensing is based on stereo vision while high resolution results from a pseudo-periodic pattern (PPP) fixed onto the target. The PPP is suited for optimizing image processing that is based on phase computations. We describe experimental setup, image processing and system calibration. Resolutions reported are in the micrometer range for target position (x, y, z) and of 5.3 × 10−4rad. for target orientation (θx, θy, θz). These performances have to be appreciated with respect to the vision system used. The latter makes that every image pixel corresponds to an actual distance of 0.3 × 0.3mm2 on the target while the PPP is made of elementary dots of 1mm with a period of 2mm. Target tilts as large as π/4 are allowed with respect to the Z axis of the system.

© 2010 Optical Society of America

OCIS Codes
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(150.6910) Machine vision : Three-dimensional sensing

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: September 7, 2010
Revised Manuscript: October 8, 2010
Manuscript Accepted: October 9, 2010
Published: November 3, 2010

Virtual Issues
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Néstor A. Arias H., Patrick Sandoz, Jaime E. Meneses, Miguel A. Suarez, and Tijani Gharbi, "3D localization of a labeled target by means of a stereo vision configuration with subvoxel resolution," Opt. Express 18, 24152-24162 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-18-23-24152


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