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Calibration of a wide angle stereoscopic system |
Optics Letters, Vol. 36, Issue 16, pp. 3064-3066 (2011)
http://dx.doi.org/10.1364/OL.36.003064
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Abstract
Inaccuracies in the calibration of a stereoscopic system appear with errors in point correspondences between both images and inexact points localization in each image. Errors increase if the stereoscopic system is composed of wide angle lens cameras. We propose a technique where detected points in both images are corrected before estimating the fundamental matrix and the lens distortion models. Since points are corrected first, errors in point correspondences and point localization are avoided. To correct point location in both images, geometrical and epipolar constraints are imposed in a nonlinear minimization problem. Geometrical constraints define the point localization in relation to its neighbors in the same image, and eipolar constraints represent the location of one point referred to its corresponding point in the other image.
© 2011 Optical Society of America
OCIS Codes
(150.1135) Machine vision : Algorithms
(150.1488) Machine vision : Calibration
ToC Category:
Machine Vision
History
Original Manuscript: May 27, 2011
Revised Manuscript: July 5, 2011
Manuscript Accepted: July 5, 2011
Published: August 8, 2011
Virtual Issues
Vol. 6, Iss. 9 Virtual Journal for Biomedical Optics
Citation
Carlos Ricolfe-Viala, Antonio-Jose Sanchez-Salmeron, and Enrique Martinez-Berti, "Calibration of a wide angle stereoscopic system," Opt. Lett. 36, 3064-3066 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-16-3064
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