A Unified Approach to Calibrate a Network of Camcorders and ToF cameras

Abstract : In this paper, we propose a unified calibration technique for a heterogeneous sensor network of video camcorders and Time-of- Flight (ToF) cameras. By moving a spherical calibration target around the commonly observed scene, we can robustly and conveniently extract the sphere centers in the observed images and recover the geometric extrinsics for both types of sensors. The approach is then evaluated with a real dataset of two HD camcorders and two ToF cameras, and 3D shapes are reconstructed from this calibrated system. The main contributions are: (1) We reveal the fact that the frontmost sphere surface point to the ToF camera center is always highlighted, and use this idea to extract sphere centers in the ToF camera images; (2) We propose a unified calibration scheme in spite of the heterogeneity of the sensors. After the calibration, this multi-modal sensor network thus becomes powerful to generate high-quality 3D shapes efficiently.
Type de document :
Communication dans un congrès
Workshop on Multi-camera and Multi-modal Sensor Fusion Algorithms and Applications - M2SFA2 2008, Oct 2008, Marseille, France. 2008
Liste complète des métadonnées

Littérature citée [14 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/inria-00321941
Contributeur : Peter Sturm <>
Soumis le : mardi 16 septembre 2008 - 11:32:53
Dernière modification le : mardi 16 septembre 2008 - 11:36:26
Document(s) archivé(s) le : vendredi 4 juin 2010 - 11:25:49

Fichier

1569138968.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : inria-00321941, version 1

Collections

Citation

Li Guan, Marc Pollefeys. A Unified Approach to Calibrate a Network of Camcorders and ToF cameras. Workshop on Multi-camera and Multi-modal Sensor Fusion Algorithms and Applications - M2SFA2 2008, Oct 2008, Marseille, France. 2008. 〈inria-00321941〉

Partager

Métriques

Consultations de la notice

156

Téléchargements de fichiers

192