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A full photometric and geometric model for attached webcam/matte screen devices

Quéau, Yvain and Modrzejewski, Richard and Gurdjos, Pierre and Durou, Jean-Denis A full photometric and geometric model for attached webcam/matte screen devices. (2016) Signal Processing: Image Communication, vol. 40. pp. 65-81. ISSN 0923-5965

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Official URL: http://dx.doi.org/10.1016/j.image.2015.11.006

Abstract

We present a thorough photometric and geometric study of the multimedia devices composed of both a matte screen and an attached camera, where it is shown that the light emitted by an image displayed on the monitor can be expressed in closed-form at any point facing the screen, and that the geometric calibration of the camera Attacxe to the screen can be simplified by introducing simple geometric constraints. These theoretical contributions are experimentally validated in a photometric stereo application with extended sources, where a colored scene is reconstructed while watching a collection of graylevel images displayed on the screen, providing a cheap and entertaining way to acquire realistic 3D-representations for, e.g., augmented reality.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Signal Processing: Image Communication website : http://www.sciencedirect.com/science/article/pii/S0923596515002039
HAL Id:hal-01273010
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
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Deposited By: IRIT IRIT
Deposited On:11 Feb 2016 15:43

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