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» On Focal Length Calibration from Two Views
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CVPR
2012
IEEE
11 years 11 months ago
Robust camera self-calibration from monocular images of Manhattan worlds
We focus on the detection of orthogonal vanishing points using line segments extracted from a single view, and using these for camera self-calibration. Recent methods view this pr...
Horst Wildenauer, Allan Hanbury
ECCV
2004
Springer
14 years 10 months 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
1999
IEEE
14 years 10 months ago
A Simple Technique for Self-Calibration
This paper introduces an extension of Hartley's selfcalibration technique [8] based on properties of the essential matrix, allowing for the stable computation of varying foca...
Paulo R. S. Mendonça, Roberto Cipolla
CVPR
2010
IEEE
14 years 5 months ago
Using cloud shadows to infer scene structure and camera calibration
We explore the use of clouds as a form of structured lighting to capture the 3D structure of outdoor scenes observed over time from a static camera. We derive two cues that relate ...
Nathan Jacobs, Brian Bies, and Robert Pless
ICCV
1995
IEEE
14 years 9 days ago
A Quantitative Analysis of View Degeneracy and its use for Active Focal Length control
W e quantify the observation by Kender and Freudenstein [6] that degenerate views occupy a significant fraction of the viewing sphere surrounding an object. This demonstrates that...
David Wilkes, Sven J. Dickinson, John K. Tsotsos