112 search results - page 7 / 23 » Radiometric Calibration from a Single Image |
162
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ICCV
2009
IEEE
16 years 10 months ago
2009
IEEE
In this paper we aim at reconstructing 3D scenes from images
with unknown focal lengths downloaded from photosharing
websites such as Flickr. First we provide a minimal
solution...
132
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3DPVT
2006
IEEE
15 years 11 months ago
2006
IEEE
This paper demonstrates that, for axial non-central optical systems, the equation of a 3D line can be estimated using only four points extracted from a single image of the line. T...
173
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ICRA
2003
IEEE
15 years 11 months ago
2003
IEEE
In this paper, we provide a principled and unified explanation how knowledge in global 3-D structural invariants, typically captured by a group action on a symmetric structure, ca...
173
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CVPR
2004
IEEE
16 years 7 months ago
2004
IEEE
Recovering the 3D coordinates of various joints of the human body from an image is a critical first step for several model-based human tracking and optical motion capture systems....
136
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ECCV
2008
Springer
16 years 7 months ago
2008
Springer
This paper introduces a novel method for recovering both the light directions and camera poses from a single sphere. Traditional methods for estimating light directions using spher...