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A crowd-based event detection method and related device

A crowd and detection technology, which is applied in the field of video technology classification, can solve the problems of environmental information interference and inaccurate recognition of crowd abnormal behavior, and achieve the effect of improving accuracy and applicability

Pending Publication Date: 2021-12-31
ZHEJIANG DAHUA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional identification of crowd abnormal behavior mostly uses image information as input, which is more easily disturbed by environmental information, which leads to inaccurate identification of crowd abnormal behavior

Method used

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  • A crowd-based event detection method and related device
  • A crowd-based event detection method and related device
  • A crowd-based event detection method and related device

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0024] In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units...

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Abstract

The invention discloses a crowd-based event detection method and a related device. The method comprises the steps: determining a to-be-detected area in a current frame image, and detecting a reference area in each frame of reference image according to the to-be-detected area, wherein the reference image is a preset number of frame images adjacent to the current frame image in time, and the reference area corresponds to the position of the to-be-detected area in the image; extracting a space crowd skeleton graph in the to-be-detected area and each detected reference area; sequentially connecting the mentioned spatial crowd skeleton maps in the to-be-detected areas and all the reference areas according to a time arrangement sequence to obtain space-time crowd skeleton maps corresponding to the to-be-detected areas; and carrying out feature extraction on the space-time crowd skeleton graph, and carrying out event classification based on the extracted features. According to the technical scheme provided by the invention, the influence of environmental influence on the event detection of the crowd can be reduced, so that the accuracy and applicability of event detection of the crowd are improved.

Description

technical field [0001] The present application relates to the technical field of video technology classification, in particular to a crowd-based event detection method and related devices. Background technique [0002] With the acceleration of urbanization and the rapid increase of urban population density, public infrastructure subway shopping malls often experience short-term peak flow of people. When the crowd is dense, in order to reduce potential safety hazards, it is very necessary to detect the abnormal behavior of the crowd. The traditional identification of crowd abnormal behavior mostly uses image information as input, which is relatively easy to be interfered by environmental information, which leads to inaccurate identification of crowd abnormal behavior. Therefore need a kind of technical scheme that can solve above-mentioned technical problem. Contents of the invention [0003] The main technical problem to be solved in this application is to provide a crow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 彭闯潘华东殷俊张兴明李中振
Owner ZHEJIANG DAHUA TECH CO LTD
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