Sciweavers

IJCV
2002

Self-Calibration of Rotating and Zooming Cameras

13 years 10 months ago
Self-Calibration of Rotating and Zooming Cameras
In this paper we describe the theory and practice of self-calibration of cameras which are fixed in location and may freely rotate while changing their internal parameters by zooming. The basis of our approach is to make use of the so-called infinite homography constraint which relates the unknown calibration matrices to the computed inter-image homographies. In order for the calibration to be possible some constraints must be placed on the internal parameters of the camera. We present various self-calibration methods. First an iterative non-linear method is described which is very versatile in terms of the constraints that may be imposed on the camera calibration: each of the camera parameters may be assumed to be known, constant throughout the sequence but unknown, or free to vary. Secondly, we describe a fast linear method which works under the minimal assumption of zero camera skew or the more restrictive conditions of square pixels (zero skew and known aspect ratio) or known princ...
Lourdes de Agapito, Eric Hayman, Ian D. Reid
Added 19 Dec 2010
Updated 19 Dec 2010
Type Journal
Year 2002
Where IJCV
Authors Lourdes de Agapito, Eric Hayman, Ian D. Reid
Comments (0)