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Fringe inverse videogrammetry based on global pose estimation |
Applied Optics, Vol. 50, Issue 29, pp. 5630-5638 (2011)
http://dx.doi.org/10.1364/AO.50.005630
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Abstract
Fringe inverse videogrammetry based on global pose estimation is presented to measure a three- dimensional (3D) coordinate. The main components involve an LCD screen, a tactile probe equipped with a microcamera, and a portable personal computer. The LCD is utilized to display fringes, a microcamera is installed on the tactile probe, and the 3D coordinate of the center of the probe tip can be calculated through the microcamera’s pose. Fourier fringe analysis is exploited to complete subpixel location of reference points. A convex-relaxation optimization algorithm is employed to estimate the global camera pose, which guarantees global convergence compared with bundle adjustment, a local pose estimation algorithm. The experiments demonstrate that fringe inverse videogrammetry can measure the 3D coordinate precisely.
© 2011 Optical Society of America
OCIS Codes
(100.2650) Image processing : Fringe analysis
(120.2440) Instrumentation, measurement, and metrology : Filters
(150.0155) Machine vision : Machine vision optics
(150.3045) Machine vision : Industrial optical metrology
ToC Category:
Machine Vision
History
Original Manuscript: May 10, 2011
Revised Manuscript: July 2, 2011
Manuscript Accepted: July 2, 2011
Published: October 3, 2011
Citation
Yong-Liang Xiao, Xianyu Su, and Wenjing Chen, "Fringe inverse videogrammetry based on global pose estimation," Appl. Opt. 50, 5630-5638 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-29-5630
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