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Abnormal object automatic finding and tracking video camera system

An abnormal target, automatic discovery technology, applied in the parts of TV system, cameras, image communication and other directions, can solve the problems of low resolution and inconspicuous details, achieve broad application prospects, eliminate low image transmission speed, improve The effect of speed and accuracy

Inactive Publication Date: 2005-01-26
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This system still uses a remote computer to complete image acquisition, processing and control of the pan / tilt and camera, so it has the same disadvantages as the previous system
[0004] Under normal circumstances, the resolution of the image captured by the camera is not high, and the details are not obvious

Method used

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  • Abnormal object automatic finding and tracking video camera system
  • Abnormal object automatic finding and tracking video camera system
  • Abnormal object automatic finding and tracking video camera system

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Embodiment Construction

[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] like figure 1 As shown, the abnormal target automatic discovery and tracking camera system of the present invention is realized by a closed-loop control system composed of a lens, a camera, an image acquisition unit, an image processing unit, and a pan / tilt control unit. Among them, the lens adopts an electric three-variable lens, and the focal length, magnification and aperture of the lens can be controlled by the control line on the lens. The camera adopts an analog camera and outputs a standard TV signal of PAL system.

[0024] The output of the camera is connected to the monitoring center and the image acquisition unit. The output of the image acquisition unit is connected to the pan-tilt control unit through the image processing unit. The output of the pan-tilt control unit is connected to the pan-tilt and the camera lens. The ce...

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PUM

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Abstract

The invention relates to a video camera system of discovering and tracking automatically abnormal targets. Camera lens, video camera, image collecting unit, image processing unit, turntable control unit, turntable consist of a closed loop control system. The image collecting unit converts standard television signals output by the camera into 16-bit digital video signals. The image processing unit outputs the center position of the biggest abnormal target after detecting abnormal targets, and outputs the zooming control of lens of the camera according to the size of targets and the position in the visual field. The turntable control unit gives an alarm to the monitoring center, controls rotation of the turntable to make the light axis of the camera installed in the turntable point to the abnormal targets detected, and adjusts automatically the zooming multiple to make the monitoring center obtain clear and intact video image about the abnormal targets. The invention realizes the quick detection and track about invading targets.

Description

technical field [0001] The invention relates to an abnormal target automatic discovery and tracking camera system, which is a security monitoring system capable of automatically finding abnormal targets in the field of view, automatically tracking them, and automatically changing the magnification of the camera lens. Background technique [0002] Once there is an object moving in the field of view (people, objects enter) or an open flame, thick smoke, etc., the characteristics of the video image change, which is called anomaly. The traditional monitoring system does not have anomaly discovery function, and the anomalies can only be found by the monitoring personnel closely watching the monitor. However, because people's attention cannot be concentrated for a long time, for the monitoring of a small number of people in the monitoring room or monitoring of intrusion at night, the monitoring system is required to have an abnormality detection function. Liu Jun, Shu Chaojun, Wu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B17/00H04N5/232
Inventor 刘成刚苏剑波马红雨
Owner SHANGHAI JIAOTONG UNIV
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