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A video-driven group behavior evacuation simulation method and device

A video and behavior technology, applied in the field of crowd simulation, to achieve the effect of improving accuracy

Active Publication Date: 2022-02-08
SHANDONG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the existing technology and solving the problem of how to use intelligent video analysis technology to simulate the group behavior of crowd evacuation in real scenes in the prior art, the present invention proposes a group behavior evacuation simulation based on video The method and device use video analysis technology to track the crowd in real time, obtain the movement trajectory of the crowd, and then obtain the small groups and the attributes of the small groups in the crowd, effectively and realistically simulate the phenomenon of groups, and truly reproduce emergencies in real scenes It becomes an important tool for predicting crowd evacuation time and evacuation status in different crowd densities and group distributions in emergency situations where it is impossible to measure crowd trajectories

Method used

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  • A video-driven group behavior evacuation simulation method and device
  • A video-driven group behavior evacuation simulation method and device
  • A video-driven group behavior evacuation simulation method and device

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Embodiment 1

[0055] The purpose of Embodiment 1 is to provide a video-driven group behavior evacuation simulation method.

[0056] In order to achieve the above object, the present invention adopts the following technical scheme:

[0057] like figure 1 as shown,

[0058] A video-driven group behavior evacuation simulation method, the method comprising:

[0059] Step (1): Receive the real scene database, track the video crowd in the database to obtain individual movement trajectories, calculate the dissimilarity between individuals to obtain small groups, and calculate the dissimilarity between small groups as subsequent initialization information;

[0060] Step (2): Generate a social force model based on the simulation scene and character model, and initialize the scene and individual information of the crowd;

[0061] Step (3): Carry out local path planning, and calculate the movement path of each individual in each scene to reach the selected exit.

[0062] The present invention uses...

Embodiment 2

[0117] The purpose of this embodiment 2 is a system based on the method in embodiment 1, and the method is verified experimentally using the system in this embodiment.

[0118] Figure 5 It is a schematic diagram of a video-driven group behavior evacuation simulation system of the present invention. As shown in the figure, the video-driven group behavior evacuation simulation system includes an information receiving module, a character grouping module, a movement path module, rendering and display Module, data export module five modules.

[0119] The crowd information extraction module uses Tracker to track the crowd in the video, obtains the movement trajectory of the crowd, calculates the dissimilarity between the movement trajectories of any two people, calculates the small group according to the similarity, and calculates the dissimilarity between any two groups;

[0120] The information receiving module uses Maya to design the scene model and character model, receives th...

Embodiment 3

[0127] The purpose of Embodiment 3 is to provide a computer-readable storage medium.

[0128] In order to achieve the above object, the present invention adopts the following technical scheme:

[0129] A computer-readable storage medium, in which a plurality of instructions are stored, and the instructions are adapted to be loaded by a processor of a terminal device and perform the following processing:

[0130] Step (1): Receive the real scene database, track the video crowd in the database to obtain individual movement trajectories, calculate the dissimilarity between individuals to obtain small groups, and calculate the dissimilarity between small groups as subsequent initialization information;

[0131] Step (2): Generate a social force model based on the simulation scene and character model, and initialize the scene and individual information of the crowd;

[0132] Step (3): Carry out local path planning, and calculate the movement path of each individual in each scene t...

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Abstract

The invention discloses a group behavior evacuation simulation method and device based on video drive. The method includes: receiving a real scene database, tracking video crowds in the database to obtain individual movement trajectories, calculating the dissimilarity between individuals to obtain small groups, and Calculate the dissimilarity between small groups as subsequent initialization information; generate a social force model based on the simulation scene and character model, initialize the scene and individual information of the crowd; perform local path planning, and calculate the arrival of each individual in each scene to the selected exit movement path. Effectively and realistically simulating group phenomena, and truly reproducing the crowd evacuation situation in emergencies in real scenes, has become an important aspect of predicting crowd evacuation time and evacuation conditions under different crowd densities and group distributions in situations where crowd trajectories cannot be measured. tool.

Description

technical field [0001] The invention belongs to the technical field of crowd simulation, and in particular relates to a video-driven group behavior evacuation simulation method and device. Background technique [0002] In recent years, with the continuous advancement of the urbanization process, the crowds in urban public places have become more and more dense, and safety accidents have occurred frequently, causing major losses of life and property. The use of crowd motion simulation to study the movement characteristics and laws of crowds in emergencies can help designers comprehensively analyze and evaluate the evacuation channels of buildings or public places, assist in establishing reasonable building layouts, and personnel evacuation plan. It is of great significance to form effective early warning and intervention for possible crowding, riots and even trampling events, and to form perfect hardware support and efficient on-site evacuation strategies for crowd evacuatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 刘弘张建新李焱
Owner SHANDONG NORMAL UNIV
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