High-altitude parabolic object detection, tracking and alarm system and method based on computer vision

A computer vision and high-altitude parabolic technology, which is applied in computer components, closed-circuit television systems, computing, etc., can solve the problems of false alarms triggered by high-altitude falling objects, poor image quality, etc., achieve high motion speed, high system stability, eliminate The effect of motion interference

Pending Publication Date: 2021-05-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

When monitoring high-altitude parabolic objects based on computer vision, the monitored image quality is easily affected by time and weather, that is, the quality of monitored images in dark nights and rainy and foggy

Method used

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  • High-altitude parabolic object detection, tracking and alarm system and method based on computer vision
  • High-altitude parabolic object detection, tracking and alarm system and method based on computer vision
  • High-altitude parabolic object detection, tracking and alarm system and method based on computer vision

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[0036]Such asfigure 1 As shown, a method based on computer vision of high-altitude parabolic detection, tracking, and alarms, including steps below:

[0037]A1, based on the VIBE background extraction algorithm, using the first frame high-altitude parabolic monitoring image to perform the background initialization, store the initialization result as a background image;

[0038]A2, based on the Vibe background extraction algorithm, the nth frame image is controlled by the background image, detecting the moving target in the nth frame image, when detecting the resulting moving target is too much, back to A1 for background update;

[0039]In steps A1 and A2, the motion target in high-altitude parabolic monitoring images is detected by the Vibe background extraction algorithm. The motion extraction algorithm is mainly composed of background initialization, prospect detection process, and background model update. A1 utilizes the first frame high-altitude parabolic monitor image initialization bac...

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Abstract

The invention discloses a system and a method for detecting, tracking and alarming a high-altitude parabolic object based on computer vision, and the system employs a monitoring camera, an edge computing device, a wireless router and a far-end computer to construct the high-altitude parabolic object monitoring system. The system has the advantages of higher movement speed, higher system stability, more flexible configuration debugging process and more excellent edge equipment expansibility; wherein a Vibe background extraction algorithm, a multi-target tracking algorithm combining a Kalman filtering algorithm and a Hungary algorithm, and physical priori knowledge of a high-altitude parabolic object are combined to carry out detection, tracking and alarm of the high-altitude parabolic object, so that interference of a monitoring period and weather as well as motion interference of flying birds and human beings can be eliminated, and the high-altitude parabolic object can be rapidly and accurately detected and tracked; in addition, under the condition that a high-altitude parabolic object appears, pedestrians and managers are warned, meanwhile, the motion trail of the high-altitude parabolic object is drawn, and videos are reserved to serve as evidences.

Description

technical field [0001] The invention relates to the technical fields of computer vision and security monitoring, in particular to a system and method for detecting, tracking and warning high-altitude parabolic objects based on computer vision. Background technique [0002] Throwing objects at high altitudes is a "pain hanging over the city", which is not only a behavior that lacks public morality, but also brings huge hidden dangers to the personal and property safety of pedestrians. In recent years, there have been frequent incidents of high-altitude parabolics causing casualties and public property losses, and the safety issues caused by high-altitude parabolics have gradually attracted the attention of all sectors of society. [0003] High-altitude parabolic objects are sudden, harmful and difficult to avoid. Pedestrians are likely to be seriously injured by high-altitude parabolic objects without awareness of prevention, and it is difficult to retain evidence to trace th...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06T7/246G06T7/277H04N7/18
CPCG06T7/246G06T7/277H04N7/181G06T2207/10016G06T2207/10024G06T2207/30232G06V20/52
Inventor 彭聪陈力
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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