Sciweavers

ACCV
2009
Springer
15 years 5 months ago
Robust Focal Length Estimation by Voting in Multi-view Scene Reconstruction
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...
Martin Bujnak, Zuzana Kukelova, Tomás Pajdl...
ECCV
2002
Springer
16 years 18 days ago
Sensitivity of Calibration to Principal Point Position
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...
Richard I. Hartley, Robert Kaucic
ECCV
2002
Springer
16 years 18 days ago
Automatic Camera Calibration from a Single Manhattan Image
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...
J. Deutscher, Michael Isard, John MacCormick
101
Voted
ECCV
2004
Springer
16 years 19 days ago
Camera Calibration with Two Arbitrary Coplanar Circles
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...
Qian Chen, Haiyuan Wu, Toshikazu Wada
CVPR
2007
IEEE
16 years 23 days ago
Autocalibration and Uncalibrated Reconstruction of Shape from Defocus
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 ...
Yifei Lou, Paolo Favaro, Andrea L. Bertozzi, Stefa...
CVPR
2003
IEEE
16 years 23 days ago
Methods and Geometry for Plane-Based Self-Calibration
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...
Pierre Gurdjos, Peter Sturm
CVPR
2001
IEEE
16 years 23 days ago
Fast Focal Length Solution in Partial Panoramic Image Stitching
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...
Kirk L. Duffin, William A. Barrett