Camera auto-calibration using a sequence of 2D images with small rotations


Hassanpour R., Atalay V.

PATTERN RECOGNITION LETTERS, vol.25, no.9, pp.989-997, 2004 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 9
  • Publication Date: 2004
  • Doi Number: 10.1016/j.patrec.2004.02.011
  • Journal Name: PATTERN RECOGNITION LETTERS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.989-997
  • Keywords: camera auto-calibration, dual quadric, 3D reconstruction, human head modeling, SELF-CALIBRATION

Abstract

In this study, we describe an auto-calibration algorithm with fixed but unknown camera parameters. We have modified Triggs' algorithm to incorporate known aspect ratio and skew values to make it applicable for small rotation around a single axis. The algorithm despite being a quadratic one is easy to solve. We have applied the algorithm to some artificial objects with known size and dimensions for evaluation purposes. In addition, the accuracy of the algorithm has been verified using synthetic data. The described method is particularly suitable for three dimensional human head modeling. (C) 2004 Elsevier B.V. All rights reserved.