| Summary: | 碩士 === 朝陽科技大學 === 資訊工程系碩士班 === 98 === The installation of cameras is becoming more and more pervasive, especially in the urban area. For the coming of ubiquitous camera (UbiCam) environment, a new service, called GPS-VT (GPS-based Visual Tracking), incorporating the global positioning system (GPS) and visual tracking function was proposed in our previous study, whereby an object can be tracked when it is within any field-of-view (FOV) of any wide-angle camera according to its real-time GPS coordinates. In order to realize GPS-VT on a pan/tilt/zoom (PTZ) camera, a new approach is now proposed in this paper. The approach include the calibration of the PTZ camera, the transformation of GPS coordinate to pan, tilt and zoom values, and the incorporation of image-based tracker for the precise tracking of the target object. In the experiment results, they show the accuracy of the calibration of a PTZ camera, the handover of multiple PTZ cameras, the target object could be located in average 4.7 seconds and the stability of the PTZ camera, these show that the feasibility of the GPS-VT for the PTZ camera.
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