| | |
Summary: Camera calibration and the search for infinity.
Richard I. Hartley,
G.E. Corporate Research and Development
1 Research Circle,
Niskayuna, NY 12309
Eric Hayman, Lourdes de Agapito and Ian Reid
Department of Engineering,
Oxford University
Abstract
This paper considers the problem of self-calibration of a
camera from an image sequence in the case where the cam-
era's internal parameters (most notably focal length) may
change. The problem of camera self-calibration from a se-
quence of images has proven to be a difficult one in practice,
due to the need ultimately to resort to non-linear methods,
which have often proven to be unreliable. In a stratified ap-
proach to self-calibration, a projective reconstruction is ob-
tained first and this is successively refined first to an affine
and then to a Euclidean (or metric) reconstruction. It has
|
