Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
532933 | Pattern Recognition | 2006 | 8 Pages |
Abstract
In this paper we present a novel simple procedure to compute the focal length of a camera. The method is based on zooming in and out only a single point. The same approach allows computing the principal point when only two points are available on a pair of images surveyed with a different focal length. Experimental results show that the method is as accurate as classical full calibration methods. Moreover, its application to augmented reality produces more accurate results than those obtained when the simple pin-hole model is considered.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Vision and Pattern Recognition
Authors
N. Alberto Borghese, Franco M. Colombo, Alberto Alzati,