398 search results - page 46 / 80 » Camera Calibration from Images of Spheres |
102
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IROS
2008
IEEE
15 years 8 months ago
2008
IEEE
— Most of the existing camera calibration toolboxes require the observation of a checkerboard shown by the user at different positions and orientations. This paper presents an al...
143
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PAMI
2008
15 years 1 months ago
2008
In many computer vision systems, it is assumed that the image brightness of a point directly reflects the scene radiance of the point. However, the assumption does not hold in mos...
108
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ICRA
2002
IEEE
15 years 6 months ago
2002
IEEE
The principal deficiency of image-based visual servoing is that the induced (3D) trajectories are not optimal and sometimes, especially when the displacement to realize is large,...
CVPR
2003
IEEE
16 years 3 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...
242
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ICDAR
2011
IEEE
14 years 1 months ago
2011
IEEE
—Document images captured by a mobile phone camera often have perspective distortions. In this paper, fast and robust vanishing point detection methods for such perspective docum...