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» On Focal Length Calibration from Two Views
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CVPR
2008
IEEE
14 years 10 months ago
Fast and robust numerical solutions to minimal problems for cameras with radial distortion
A number of minimal problems of structure from motion for cameras with radial distortion have recently been studied and solved in some cases. These problems are known to be numeri...
Karl Åström, Klas Josephson, Martin Byr...
ICRA
1998
IEEE
108views Robotics» more  ICRA 1998»
14 years 1 months ago
Zoom Tracking
We present a new active vision technique called zoom tracking. Zoom tracking is the continuous adjustment of a camera's focal length in order to keep a constant-sized image of...
Jeffrey A. Fayman, Oded Sudarsky, Ehud Rivlin
HLK
2003
IEEE
14 years 2 months ago
Reconstruction of Objects with Jagged Edges through Rao-Blackwellized Fitting of Piecewise Smooth Subdivision Curves
In some applications objects are known to have nonsmooth or “jagged” edges, which are not well approximated by smooth curves. We use subdivision curves as a simple but flexib...
Michael Kaess, Frank Dellaert
TROB
2002
105views more  TROB 2002»
13 years 8 months ago
Theoretical improvements in the stability analysis of a new class of model-free visual servoing methods
This paper concerns the stability analysis of a new class of model-free visual servoing methods. These methods are "model-free" since they are based on the estimation of ...
Ezio Malis, François Chaumette, Sylvie Boud...
AVBPA
2005
Springer
350views Biometrics» more  AVBPA 2005»
14 years 2 months ago
Pose Invariant Face Recognition Under Arbitrary Illumination Based on 3D Face Reconstruction
Pose and illumination changes from picture to picture are two main barriers toward full automatic face recognition. In this paper, a novel method to handle both pose and lighting c...
Xiujuan Chai, Laiyun Qing, Shiguang Shan, Xilin Ch...