ACCV
2009
Springer
13 years 11 months ago
2009
Springer
We propose a new robust focal length estimation method in multi-view structure from motion from unordered data sets, e.g. downloaded from the Flickr database, where jpeg-exif heade...
ECCV
2002
Springer
14 years 6 months ago
2002
Springer
A common practice when carrying out self-calibration of a camera from one or more views is to start with a guess at the principal point. The general belief is that inaccuracies in...
ECCV
2002
Springer
14 years 6 months ago
2002
Springer
We present a completely automatic method for obtaining the approximate calibration of a camera (alignment to a world frame and focal length) from a single image of an unknown scene...
ECCV
2004
Springer
14 years 7 months ago
2004
Springer
Abstract. In this paper, we describe a novel camera calibration method to estimate the extrinsic parameters and the focal length of a camera by using only one single image of two c...
CVPR
2007
IEEE
14 years 7 months ago
2007
IEEE
Most algorithms for reconstructing shape from defocus assume that the images are obtained with a camera that has been previously calibrated so that the aperture, focal plane, and ...
CVPR
2003
IEEE
14 years 7 months ago
2003
IEEE
Abstract. We consider the problem of camera selfcalibration, from images of a planar object with unknown Euclidean structure. The general case of possibly varying focal length is a...
CVPR
2001
IEEE
14 years 7 months ago
2001
IEEE
Accurate estimation of effective camera focal length is crucial to the success of panoramic image stitching. Fast techniques for estimating the focal length exist, but are depende...