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Crowd density information obtaining method

A technology of crowd density and acquisition method, which is applied in the fields of instruments, character and pattern recognition, computer parts, etc., can solve the problem of low accuracy of crowd density, and achieve the effect of avoiding the decrease of density analysis accuracy and improving the accuracy.

Inactive Publication Date: 2015-03-25
NEW TECH APPL INST BEIJING CITY
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Problems solved by technology

[0003] In view of the defects in the above-mentioned prior art, the purpose of the present invention is to provide a method for obtaining crowd density information, which solves the problem of low accuracy of the existing crowd density

Method used

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Embodiment Construction

[0041] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] In a method for obtaining crowd density information of the present invention, such as figure 1 shown, including:

[0043] Step S101, extracting a sampling image of the current crowd from the collected images of the current crowd.

[0044]In this step, the current crowd images can be collected through cameras and photographic equipment installed in crowded places. At the same time, in areas such as parks or mountains, different landforms have different gatherings of people. For exa...

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Abstract

The invention discloses a crowd density information obtaining method. The crowd density information obtaining method includes the steps of extracting a current crowd sampling image from current crowd collecting images; obtaining a crowd density sampling value according to the current crowd sampling image; conducting texture-based method density analysis or pixel-based method crowd density analysis to obtain current crowd density information according to judgment results of the crowd density sampling value and a set threshold value; generating crowd density alarm information according to the current crowd density information. The problem that the existing crowd density accuracy is low is accordingly solved. The condition that the density analysis accuracy is reduced due to the fact that an analysis method is improper is avoided. In this way, the crowd density collecting accuracy is improved, the crowd pre-storage cost is reduced, and the information effectiveness is improved.

Description

technical field [0001] The invention relates to the technical fields of image processing and pattern recognition, in particular to a method for acquiring crowd density information. Background technique [0002] With the development of society, there are more and more places where people gather, which puts a huge pressure on the public infrastructure of large cities, such as railway stations, subway stations, bus stations and gymnasiums, etc., often usher in short-term peaks of people flow . Crowds are highly crowded and prone to stampede accidents, which pose a great safety hazard. Many crowd stampede accidents are not uncommon in various countries. For example: On December 31, 2012, when Côte d’Ivoire held a firework display celebration to celebrate the New Year, a serious stampede occurred, killing at least 61 people; on January 14, 2011, a major stampede occurred in India while celebrating a religious festival, killing at least 100 people Death; In 2013, a stampede acci...

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/10
Inventor 靳薇李济朝李彬曲寒冰
Owner NEW TECH APPL INST BEIJING CITY
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