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High-altitude object throwing detection method based on computer vision and radio signal analysis

A radio signal and computer vision technology, applied in the direction of devices using electric/magnetic methods, devices using optical methods, etc., can solve problems such as defects in the high-altitude parabolic monitoring system, and achieve convenient door-to-door education, reduce workload, and accurately The effect of forensics

Active Publication Date: 2019-09-24
深圳市零壹移动互联系统有限公司
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AI Technical Summary

Problems solved by technology

[0011] The above two existing high-altitude parabolic monitoring systems have defects

Method used

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  • High-altitude object throwing detection method based on computer vision and radio signal analysis
  • High-altitude object throwing detection method based on computer vision and radio signal analysis
  • High-altitude object throwing detection method based on computer vision and radio signal analysis

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Embodiment 2

[0107] Example 2: For civil high-altitude parabolic detection equipment, a balance needs to be struck between the detection effect and the hardware cost: our improved detection method based on computer vision can better collect evidence at the initial stage of the high-altitude parabolic occurrence process, and the price low. High-altitude parabolic detection based on radio analysis can detect high-speed falling objects at the end of the high-altitude parabola, but the sensor is relatively expensive. Combining methods based on computer vision and radio analysis can certainly achieve better results than either method. But if we consider the cost factor, we can choose a single method based on computer vision in the actual implementation process.

[0108] Among them, a surveillance camera is also arranged to monitor the lens of high-altitude throwing objects.

[0109] The beneficial effects of the present invention are as follows:

[0110] 1. Compared with the existing schemes...

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Abstract

The invention discloses a high-altitude object throwing detection method based on computer vision and radio signal analysis. The detection method comprises a computer-vision-based method and a radio-signal-analysis-based method. The computer-vision-based method includes a background-modeling-based mobile detection method, a background-modeling-based mobile detection algorithm, an adaptive OTSU threshold calculation method, and a self-made high-speed tracking algorithm. According to the invention, the high-altitude object throwing time and location can be captured by means of computer vision and radio analysis. On the basis of combination of real-time analysis with video recording, the high-altitude object throwing time and location can be located accurately and thus evidences are taken accurately; and the capturing delay of the camera is avoided. Meanwhile, the high-altitude object throwing can be detected precisely by using the computer vision and radio signal analysis; and the false reporting number is reduced. Besides, a monitoring camera and a lens are arranged to monitor the high-altitude object throwing, so that objects thrown at high altitudes can be prevented from being moved or picked up and thus the evidences are protected from being damaged.

Description

technical field [0001] The invention belongs to the field of intelligent video monitoring, and in particular relates to a method for detecting high-altitude parabolic objects based on computer vision and radio signal analysis. Background technique [0002] High-altitude parabolic can cause serious consequences of personal injury and heavy property loss. [0003] At present, there are two commonly used methods for high-altitude parabolas: [0004] Existing technical scheme one: [0005] Generally, after a high-altitude parabola has occurred in the community, causing casualties or property damage, the management personnel will transfer video recordings for passive evidence collection. This method requires people to watch the video to determine the time and location of the high-altitude parabolic occurrence. It is easy because of Personnel-generated factors lead to misjudgment. Simultaneously, the high-altitude parabolic incidents that do not cause casualties or property los...

Claims

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Application Information

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IPC IPC(8): G01P3/38G01P3/42
CPCG01P3/38G01P3/42
Inventor 陈硕武胜边静远
Owner 深圳市零壹移动互联系统有限公司
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