A video analysis framework for soft biometry security surveillance
Proceedings of the third ACM international workshop on Video surveillance & sensor networks
Pan-tilt-zoom camera calibration and high-resolution mosaic generation
Computer Vision and Image Understanding - Special issue on omnidirectional vision and camera networks
Knowledge propagation in a distributed omnidirectional vision system
Journal of Intelligent & Fuzzy Systems: Applications in Engineering and Technology - Marco Somalvico Memorial Issue
Principles of Appearance Acquisition and Representation
Foundations and Trends® in Computer Graphics and Vision
Camera-to-camera mapping for hybrid pan-tilt-zoom sensors calibration
SCIA'07 Proceedings of the 15th Scandinavian conference on Image analysis
Calibrating pan-tilt cameras with telephoto lenses
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part I
Exploiting distinctive visual landmark maps in pan-tilt-zoom camera networks
Computer Vision and Image Understanding
PTZ camera modeling and panoramic view generation via focal plane mapping
ACCV'10 Proceedings of the 10th Asian conference on Computer vision - Volume Part II
An experimental framework for evaluating PTZ tracking algorithms
ICVS'11 Proceedings of the 8th international conference on Computer vision systems
Automatic unconstrained online configuration of a master-slave camera system
ICVS'13 Proceedings of the 9th international conference on Computer Vision Systems
Camera calibration in sport event scenarios
Pattern Recognition
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Pan-tilt cameras are often used as components of wide-areasurveillance systems. It is necessary to calibrate these cameras inrelation to one another in order to obtain a consistentrepresentation of the entire space. Existing methods forcalibrating pan-tilt cameras have assumed an idealized model ofcamera mechanics. In addition, most methods have been calibratedusing only asmall range of camera motion. This paper presents amethod for calibrating pan-tilt cameras that introduces a morecomplete model of camera motion. Pan and tilt rotations are modeledas occurring around arbitrary axes in space. In addition, the widearea surveillance system itself is used to build a large virtualcalibration object, resulting in better calibration than would bepossible with a single small calibration target. Finally, theproposed enhancements are validated experimentally, withcomparisons showing the improvement provided over more traditionalmethods.