Multiresolution approach based on projection matrices



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Quiroga Mellado, Juan Antonio and Vargas Balbuena, Javier (2009) Multiresolution approach based on projection matrices. Applied Optics, 48 (7). pp. 1295-1302. ISSN 0003-6935

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Active triangulation measurement systems with a rigid geometric configuration are inappropriate tor 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.

Item Type:Article
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© 2009 Optical Society of America.
We thank the Ministerio de Ciencia y Tecnología of Spain for the financial support of this work given by project DPI2005-03891 and the Spanish Ministry of Education for support under a FPU grant.

Uncontrolled Keywords:Calibration, Topometry, Surfaces
Subjects:Sciences > Physics > Optics
ID Code:22826
Deposited On:18 Sep 2013 08:40
Last Modified:28 Apr 2022 18:07

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