Three-dimensional object detection under arbitrary lighting conditions
Applied Optics, Vol. 45, Issue 21, pp. 5237-5247 (2006)
http://dx.doi.org/10.1364/AO.45.005237
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Abstract
A novel method of 3D object recognition independent of lighting conditions is presented. The recognition model is based on a vector space representation using an orthonormal basis generated by the Lambertian reflectance functions obtained with distant light sources. Changing the lighting conditions corresponds to multiplying the elementary images by a constant factor and because of that, all possible lighting views will be elements that belong to that vector space. The recognition method proposed is based on the calculation of the angle between the vector associated with a certain illuminated 3D object and that subspace. We define the angle in terms of linear correlations to get shift and illumination-invariant detection.
© 2006 Optical Society of America
OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.4550) Fourier optics and signal processing : Correlators
(100.5010) Image processing : Pattern recognition
(100.6890) Image processing : Three-dimensional image processing
ToC Category:
Image Processing
History
Original Manuscript: November 21, 2005
Manuscript Accepted: January 30, 2006
Citation
José J. Vallés, Javier García, Pascuala García-Martínez, and Henri H. Arsenault, "Three-dimensional object detection under arbitrary lighting conditions," Appl. Opt. 45, 5237-5247 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-21-5237
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