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» Auto-Calibration of a Rotating and Zooming Camera
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CAIP
1999
Springer
125views Image Analysis» more  CAIP 1999»
13 years 9 months ago
Calibration Update Technique for a Zoom Lens
A technique for a zoom lens camera is presented that enable to update continuously camera intrinsic parameters while zooming. This is based on the fact that the spatial angle subte...
Marina Kolesnik
ICPR
2002
IEEE
14 years 5 months ago
A Probabilistic Model for Camera Zoom Detection
Camera motion detection is essential for automated video analysis. We propose a new probabilistic model for detecting zoom-in/zoom-out operations. The model uses EM to estimate th...
Rong Jin, Yanjun Qi, Alexander G. Hauptmann
CVPR
1999
IEEE
14 years 6 months ago
Calibration of an Outdoor Active Camera System
A parametric camera model and calibration procedures are developed for an outdoor active camera system with pan, tilt and zoom control. Unlike traditional methods, active camera m...
Robert T. Collins, Yanghai Tsin
ICIP
2008
IEEE
13 years 11 months ago
Practical PTZ camera calibration using Givens rotations
Due to their ease of use and availability, pan-tilt-zoom (PTZ) cameras are everywhere. However, in order to utilize these cameras for a meaningful application, it is necessary tha...
Imran N. Junejo, Hassan Foroosh
WACV
2012
IEEE
12 years 9 days ago
PTZ camera network calibration from moving people in sports broadcasts
In sports broadcasts, networks consisting of pan-tiltzoom (PTZ) cameras usually exhibit very wide baselines, making standard matching techniques for camera calibration very hard t...
Jens Puwein, Remo Ziegler, Luca Ballan, Marc Polle...