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Video driven group behavior evacuation simulation method and apparatus

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

Active Publication Date: 2018-08-24
SHANDONG NORMAL UNIV
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  • Summary
  • 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

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  • Video driven group behavior evacuation simulation method and apparatus
  • Video driven group behavior evacuation simulation method and apparatus
  • Video driven group behavior evacuation simulation method and apparatus

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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] Such as 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 u...

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 present invention discloses a video driven group behavior evacuation simulation method and apparatus. The method comprises: receiving a real scene database, tracking a video crowd in the databaseto obtain individual motion trajectories, calculating the dissimilarity between individuals to obtain small groups, and calculating the dissimilarity between small groups as subsequent initializationinformation; generating a social force model based on the simulation scene and the character model, and initializing the scene and the individual information of the crowd; and performing local path planning, and calculating a motion path of each individual in the each scene to reach the selected exit. According to the technical scheme disclosed by the present invention, the group phenomenon can beeffectively and realistically simulated, real reproduction of crowd evacuation under unexpected events in real scenes can be implemented, and the technical scheme becomes an important tool for predicting the evacuation time and evacuation status of populations distributed in different population densities and groups on the occasion that the population trajectory cannot be measured in the case ofthe emergency situation.

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 Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 刘弘张建新李焱
Owner SHANDONG NORMAL UNIV
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