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| Design of PTZ detection and tracking system based on single moving object |
| 1.School of Computer Science and Telecommunications Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 3. Zhenjiang Jiangda Kemao Information System Limited Company, Zhenjiang, Jiangsu 212001, China) |
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Abstract To solve the problem that when the background images change dynamically, the existing PTZ system has a high noise ratio, low tolerence to harsh circumstance, low light intensity, poor light, and difficulty to achieve accurate, realtime, and reliable track request, a new PTZ detection and tracking system was proposed. Moving object was divided by the autoadapted background method. The improved OSTU algorithm was used to obtain the dynamic threshold value and background accumulation update was completed by frame difference result control. the projection was adopted in order to achieve precise positioning of moving objects, the Kalman filter was added in the CamShift algorithm foundation to complete motion prediction, and the PTZ realtime track of the movement goal was realized. In the VC++environment, the image gathering card and the quick ball were adopted to gather high speed image and carry out the PTZ control, and the designed PTZ examination tracking system was tested with a pedestrian as the movement goal. The results show that the movement goal examination, the localization and the PTZ track are realized by this system. In respect of the running time and detection rate, this system show good robustness and realtime character.
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2010, Vol. 31 
