Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for estimating main direction of crowd flow

A technology of flow direction and main direction, which is applied in the field of image processing, can solve the problems such as the inability to determine the movement trajectory of pedestrians in the surveillance image, and the inability to obtain the main direction of crowd flow.

Inactive Publication Date: 2018-10-12
深圳市深网视界科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of determining the flow direction of the crowd, it is necessary to determine the movement trajectory of pedestrians in the monitoring image based on the continuous monitoring images acquired by the monitoring equipment for a period of time. The method of flow direction cannot determine the movement trajectory of pedestrians in the surveillance image, so that the main direction of crowd flow cannot be obtained

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for estimating main direction of crowd flow
  • Method and device for estimating main direction of crowd flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] In order to facilitate the understanding of this embodiment, a method for estimating the main direction of crowd flow disclosed in the embodiment of the present invention is firstly introduced in detail.

[0096] A method for estimating the main direction of crowd flow disclosed in this embodiment, the execution subject is a computing device, and the computing device is used to track the image feature points in the current surveillance video image to construct moving points, and calculate the moving points between Calculate the similarity between them, and then determine the main direction of crowd flow through the calculated similarity between moving points.

[0097] The computing device can use any existing computer or server to estimate the main direction of crowd flow, and details will not be repeated here.

[0098] see figure 1 , this embodiment provides a method for estimating the main direction of crowd flow, including the following steps:

[0099] Step 100, ac...

Embodiment 2

[0162] see figure 2 , this embodiment provides a device for estimating the main direction of crowd flow, which is used to implement the above method for estimating the main direction of crowd flow, including:

[0163] An image acquisition module 200, configured to acquire a current monitoring video image;

[0164] Tracking module 202, is used for extracting the image feature point in current surveillance video image, and the image feature point that extracts is tracked;

[0165] The moving point construction module 204 is used to construct the moving point of the current monitoring video image according to the tracking result of the image feature point;

[0166] A similarity calculation module 206, configured to calculate the similarity between each moving point;

[0167] The main direction determination module 208 is configured to determine the main direction of crowd flow according to the calculated similarity between the movement points.

[0168] Specifically, the movem...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method and device for estimating the main direction of crowd flow. The method includes: acquiring the current surveillance video image; extracting image feature points in the current surveillance video image, and tracking the extracted image feature points; according to The tracking results of image feature points are used to construct the moving points of the current surveillance video image; the similarity between each moving point is calculated; based on the calculated similarity between each moving point, the main direction of crowd flow is determined. Through the method and device for estimating the main direction of crowd flow provided by the present invention, the calculation speed of estimating the main direction of crowd flow can be improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and device for estimating the main direction of crowd flow. Background technique [0002] At present, in crowded areas such as squares and commercial areas, monitoring equipment is usually installed to monitor the crowds in the squares and commercial areas in real time, so as to ensure the safety of the crowd in the squares and commercial areas. When emergencies such as fires and explosions occur in crowded areas, it is necessary to determine the flow direction of the crowd in the crowded area where the emergency occurs, and then guide the crowd in the area according to the site conditions in the crowded area to ensure that personnel safety. [0003] In related technologies, in order to determine the flow direction of crowds in densely populated areas, the existing method for determining the flow direction of crowds can firstly use the continuous monito...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/246G06T5/00G06K9/00G06K9/62
CPCG06T2207/10016G06T2207/30196G06T5/70
Inventor 陈芳林万定锐
Owner 深圳市深网视界科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com