Appearance sphere: background model for pan-tilt-zoom camera
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چکیده
منابع مشابه
Auto-Calibration of Pan-Tilt Cameras Including Radial Distortion and Zoom
Although there are intrinsic advantages of using pan-tilt-zoom cameras their application in automatic surveillance systems is still scarce. The difficulty of creating background models for moving cameras and the difficulty of keeping fitted pose and optical geometrical projection models are key reasons for the limited use of pan-tilt-zoom cameras. Geometric calibration is a useful tool to overc...
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Choosing the appropriate type of video input is an important issue for any vision-based system and the right decision must take into account the specific requirements of the intended application. We present GlobeAll, a modular four-component prototype for a vision-based Intelligent Room: a video input component that uses an electronic pan-tilt-zoom camera array, a background learning and foregr...
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Choosing the appropriate type of video input is an important issue for any vision-based system and the right decision must take into account the specific requirements of the intended application. In the context of Intelligent Room systems, we establish several qualitative criteria to evaluate the video input component and we use them to compare three current solutions: mobile pan-tilt-zoom came...
متن کاملReal Time Automatic Object Tracking by Pan-Tilt-Zoom cameras in an IP-Surveillance System
Pan-tilt-zoom (PTZ) cameras are one of the advanced security cameras in the market. These cameras have the ability to cover a very far field and can acquire high resolution of images. These cameras are deployed mainly for perimeter surveillance applications where the security guards have to monitor the intruders from a long distance. Although there are intrinsic advantages of using pan-tilt-zoo...
متن کاملTowards Calibrating a Pan-Tilt-Zoom Camera Network
In this paper we discuss the problem of recovering the calibration of a network of pan-tilt-zoom cameras. The intrinsic parameters of each camera over its full range of zoom settings are estimated through a two step procedure. We first determine the intrinsic parameters at the camera's lowest zoom setting very accurately by capturing an extended panorama. Our model includes two parameters of ra...
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