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CVPR
2003
IEEE
14 years 9 months 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
2008
IEEE
14 years 9 months ago
PSF estimation using sharp edge prediction
Image blur is caused by a number of factors such as motion, defocus, capturing light over the non-zero area of the aperture and pixel, the presence of anti-aliasing filters on a c...
Neel Joshi, Richard Szeliski, David J. Kriegman
ICRA
2007
IEEE
125views Robotics» more  ICRA 2007»
14 years 2 months ago
Mirror Localization for a Catadioptric Imaging System by Projecting Parallel Lights
Abstract— This paper describes a method of mirror localization to calibrate a catadioptric imaging system. Even though the calibration of a catadioptric system includes the estim...
Ryusuke Sagawa, Nobuya Aoki, Yasuhiro Mukaigawa, T...
CVPR
2008
IEEE
14 years 9 months ago
A general solution to the P4P problem for camera with unknown focal length
This paper presents a general solution to the determination of the pose of a perspective camera with unknown focal length from images of four 3D reference points. Our problem is a...
Martin Bujnak, Tomás Pajdla, Zuzana Kukelov...
ICRA
2006
IEEE
81views Robotics» more  ICRA 2006»
14 years 1 months ago
Uncertainty Ellipsoids Calculations for Complex 3D Reconstructions
— Many methods exist for the automatic and optimal 3D reconstruction of camera motion and scene structure from image sequence (’Structure from Motion‘ or SfM). The solution t...
Maxime Lhuillier, Mathieu Perriollat