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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 7 — Mar. 1, 2009
  • pp: 1295–1302

Multiresolution approach based on projection matrices

Javier Vargas and Juan Antonio Quiroga  »View Author Affiliations


Applied Optics, Vol. 48, Issue 7, pp. 1295-1302 (2009)
http://dx.doi.org/10.1364/AO.48.001295


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Abstract

Active triangulation measurement systems with a rigid geometric configuration are inappropriate for scanning large objects with low measuring tolerances. The reason is that the ratio between the depth recovery error and the lateral extension is a constant that depends on the geometric setup. As a consequence, measuring large areas with low depth recovery error requires the use of multiresolution techniques. We propose a multiresolution technique based on a camera–projector system previously calibrated. The method consists of changing the camera or projector’s parameters in order to increase the system depth sensitivity. A subpixel retroprojection error in the self-calibration process and a decrease of approximately one order of magnitude in the depth recovery error can be achieved using the proposed method.

© 2009 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(150.0150) Machine vision : Machine vision

ToC Category:
Imaging Systems

History
Original Manuscript: September 22, 2008
Revised Manuscript: January 9, 2009
Manuscript Accepted: January 9, 2009
Published: February 23, 2009

Citation
Javier Vargas and Juan Antonio Quiroga, "Multiresolution approach based on projection matrices," Appl. Opt. 48, 1295-1302 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-7-1295


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