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Crowd event recognition method, device, electronic device and system

A recognition method and crowd technology, applied in the field of crowd event recognition, can solve the problems of single information and low accuracy of crowd event recognition, and achieve the effect of improving the accuracy

Active Publication Date: 2021-09-21
HANGZHOU HIKVISION DIGITAL TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The information reflected by the crowd density map corresponding to a surveillance video frame is relatively simple, and the use of this crowd density map to identify crowd events may easily lead to low recognition accuracy of crowd events

Method used

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  • Crowd event recognition method, device, electronic device and system
  • Crowd event recognition method, device, electronic device and system
  • Crowd event recognition method, device, electronic device and system

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Embodiment Construction

[0077] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0078] Crowd event recognition is of great significance in quickly handling public safety emergencies and avoiding safety accidents such as stampedes.

[0079] In the prior art, when identifying a crowd event in a certain area, the server may acquire a surveillance video frame from the surveillance video of the area at regular intervals. Then, the server may acquire a crowd density map corresponding to the surveillance video frame, where the crowd density map may reflect the density of pedestrians in the area. figure 1 For an exemplary crowd density map, such as figure 1 As shown, the crowd density map is a grayscale map, which uses the gray value of the pixel to represent the density of the crowd. The larger the gray value, the great...

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Abstract

The invention discloses a crowd event identification method, device, electronic equipment and system, belonging to the field of crowd event identification. The method includes: acquiring a monitoring video of a target area; acquiring at least one target monitoring image group from the monitoring video, each target monitoring image group including a plurality of continuous monitoring video frames; Crowd event identification is carried out in the monitoring image group, and the crowd event model is obtained through training of multiple crowd event image groups, each crowd event image group includes multiple crowd event images reflecting the process of crowd event occurrence; according to the recognition results, it is determined whether there is a crowd event in the target area . The invention can improve the accuracy of identifying crowd events.

Description

technical field [0001] The present invention relates to the field of crowd event recognition, in particular to a crowd event recognition method, device, electronic equipment and system. Background technique [0002] With the rapid development of the economy and the continuous increase of people's social activities, the possibility of crowd incidents in public places such as transportation hubs, large shopping malls, and large-scale event sites is getting higher and higher. The so-called crowd event refers to an event in which a large number of people gather suddenly or a large number of people disperse suddenly. Crowd incidents are likely to be caused by sudden public safety incidents, and can easily lead to safety accidents such as stampedes. For example, when a public safety event such as a terrorist attack occurs, there may be a crowd event in which a large number of people suddenly disperse, and when a crowd event in which a large number of people gather suddenly occurs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V20/53G06V20/40
Inventor 曾钦清童超车军
Owner HANGZHOU HIKVISION DIGITAL TECH
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