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On Using Silhouettes for Camera Calibration

Edmond Boyer 1 
1 MOVI - Modeling, localization, recognition and interpretation in computer vision
GRAVIR - IMAG - Laboratoire d'informatique GRAphique, VIsion et Robotique de Grenoble, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : This paper addresses the problem of camera calibration using object silhouettes in image sequences. It is known that silhouettes encode information on camera parameters by the fact that their associated viewing cones should present a common intersection in space. In this paper, we investigate how to evaluate calibration parameters given a set of silhouettes, and how to optimize such parameters with silhouette cues only. The objective is to provide on-line tools for silhouette based modeling applications in multiple camera environments. Our contributions with respect to existing works in this field is first to establish the exact constraint that camera parameters should satisfy with respect to silhouettes, and second to derive from this constraint new practical criteria to evaluate and to optimize camera parameters. Results on both synthetic and real data illustrate the interest of the proposed framework.
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Submitted on : Tuesday, May 3, 2011 - 9:37:03 AM
Last modification on : Wednesday, May 4, 2022 - 9:56:04 AM

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Edmond Boyer. On Using Silhouettes for Camera Calibration. 7th Asian Conference on Computer Vision (ACCV '06), Jan 2006, Hyderabad, India. pp.1-10, ⟨10.1007/11612032_1⟩. ⟨inria-00590207⟩



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