Towards Dynamic Camera Calibration for Constrained Flexible Mirror Imaging

Aubrey K. Dunne 1 John Mallon 1 Paul F. Whelan 1
1 Vision Systems Group
Abstract : Flexible mirror imaging systems consisting of a perspective camera viewing a scene reflected in a flexible mirror can provide direct control over image field-of-view and resolution. However, calibration of such systems is difficult due to the vast range of possible mirror shapes and the flexible nature of the system. This paper proposes the fundamentals of a dynamic calibration approach for flexible mirror imaging systems by examining the constrained case of single dimensional flexing. The calibration process consists of an initial primary calibration stage followed by in-service dynamic calibration. Dynamic calibration uses a linear approximation to initialise a non-linear minimisation step, the result of which is the estimate of the mirror surface shape. The method is easier to implement than existing calibration methods for flexible mirror imagers, requiring only two images of a calibration grid for each dynamic calibration update. Experimental results with both simulated and real data are presented that demonstrate the capabilities of the proposed approach.
Type de document :
Communication dans un congrès
The 8th Workshop on Omnidirectional Vision, Camera Networks and Non-classical Cameras - OMNIVIS, Oct 2008, Marseille, France. 2008
Liste complète des métadonnées

Littérature citée [17 références]  Voir  Masquer  Télécharger
https://hal.inria.fr/inria-00325391
Contributeur : Peter Sturm <>
Soumis le : lundi 29 septembre 2008 - 10:58:48
Dernière modification le : lundi 29 septembre 2008 - 11:01:31
Document(s) archivé(s) le : lundi 8 octobre 2012 - 13:40:29

Fichier

A32CR.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : inria-00325391, version 1

Collections

OMNIVIS2008

Citation

Aubrey K. Dunne, John Mallon, Paul F. Whelan. Towards Dynamic Camera Calibration for Constrained Flexible Mirror Imaging. The 8th Workshop on Omnidirectional Vision, Camera Networks and Non-classical Cameras - OMNIVIS, Oct 2008, Marseille, France. 2008. 〈inria-00325391〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

62

Téléchargements de fichiers

60

Contact


archive-ouverte@inria.fr