On Focal Length Calibration from Two Views

Peter Sturm 1
1 MOVI - Modeling, localization, recognition and interpretation in computer vision
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : We consider the problem of self-calibration of a camera whose intrinsic parameters are known, besides the focal length. In the past, algorithms were mainly proposed for estimating two values of the focal length, for two images taken with different zoom. While there exist closed form solutions based on the fundamental matrix, their applicability is limited due to a generic singularity that occurs whenever the optical axes intersect, leading to numerical instabilities in most practical situations. Here, we consider the case of two views with identical focal length. We derive closed form solutions (one quadratic and two linear equations). Their respective singularity conditions are studied analytically and experimental results on their stability are given.
Type de document :
Communication dans un congrès
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR '01), Dec 2001, Kauai, United States. IEEE Computer Society, 2, pp.145-150, 2001, 〈http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=990940〉. 〈10.1109/CVPR.2001.990940〉
Liste complète des métadonnées

Littérature citée [14 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/inria-00525660
Contributeur : Peter Sturm <>
Soumis le : jeudi 26 mai 2011 - 15:37:39
Dernière modification le : mercredi 11 avril 2018 - 01:56:16
Document(s) archivé(s) le : samedi 27 août 2011 - 02:24:06

Fichiers

Sturm-cvpr01.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

INRIA | IMAG | UGA

Citation

Peter Sturm. On Focal Length Calibration from Two Views. IEEE International Conference on Computer Vision and Pattern Recognition (CVPR '01), Dec 2001, Kauai, United States. IEEE Computer Society, 2, pp.145-150, 2001, 〈http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=990940〉. 〈10.1109/CVPR.2001.990940〉. 〈inria-00525660〉

Partager

Métriques

Consultations de la notice

324

Téléchargements de fichiers

450