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

Method and device for identifying the direction of motion of an object

A technology of motion direction and objects, applied in the field of image processing, can solve cumbersome and time-consuming problems, and achieve the effect of improving recognition accuracy

Inactive Publication Date: 2018-02-02
RICOH KK
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such methods, a large number of samples need to be trained in advance, which is a tedious and time-consuming process

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 identifying the direction of motion of an object
  • Method and device for identifying the direction of motion of an object
  • Method and device for identifying the direction of motion of an object

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0028] figure 2 A flow chart of the method for identifying the moving direction of an object according to the first embodiment of the present invention is shown.

[0029] Such as figure 2 As shown, in step S201, a sequence of image frames including the object captured by a stereo camera is acquired, and the number of frames of the sequence of image frames is the size of a predetermined sampling window.

[0030]The sampling window is an analysis window for determining the moving direction of the object, that is, when a series of image frames with the size of the sampling window are acquired, the moving direction of the object in the sampling window is determined by analyzing and processing the series of image frames. It can be understood that the size of the sampling window here is the number of acquired image frames for analysis and processing, for example, for figure 1 In the case exemplified in , the size of the sampling window is 6. The size of the sampling window can ...

no. 2 example

[0063] In the method for recognizing the direction of motion of an object according to the first embodiment of the present invention, a single stereo camera is used to detect the object to identify its direction of motion. However, the detection angle of a single stereo camera is limited, and due to the inherent error of the camera, the detection range and Detection accuracy is also limited. Therefore, in this embodiment, a plurality of stereo cameras are used to detect the object to identify the moving direction of the object, which can solve the problem of object occlusion and further improve the recognition accuracy of the moving direction.

[0064] The method for identifying the moving direction of an object according to this embodiment is substantially the same as the identification method described in the first embodiment. Hereinafter, descriptions of the same contents will be omitted, and only points different from the first embodiment will be described in detail.

[0...

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

A method for identifying the movement direction of an object is provided, including: acquiring an image frame sequence including the object captured by at least one stereo camera, the number of frames of the image frame sequence being the size of a predetermined sampling window; determining each Corresponding trajectory points of the object in each image frame sequence captured by a stereo camera in the real world; and performing statistical analysis on the overall distribution of multiple corresponding trajectory points to determine the most significant change. The significant direction is the direction of motion of the object in the sampling window. The technology for identifying the movement direction of an object according to the embodiment of the present invention can identify a relatively accurate movement direction even when the trajectory point is affected by noise. In addition, this technology for identifying the movement direction of objects can use multiple stereo cameras to detect objects, so it can well handle the problem of object occlusion and further improve the recognition accuracy.

Description

technical field [0001] The present invention relates generally to image processing, and in particular to methods and devices for identifying the direction of motion of an object. Background technique [0002] As people pay more and more attention to public safety, various monitoring systems have spread all over every corner of every city. In these various monitoring systems, the movement direction analysis of moving objects is an indispensable part. For example, in public transportation hubs such as airports, train stations, and subway stations, walking against the flow of people or against the prescribed directions is often considered an abnormal behavior. For another example, for the monitoring system installed in dangerous warehouses such as hazardous chemical storage warehouses and radioactive material storage warehouses, one of its basic functions is to be able to detect the behavior of people approaching dangerous goods, and once such behavior is detected, immediately...

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): G06T7/285G06T7/292G06T7/246
Inventor 王千范圣印王鑫乔刚诸加丹
Owner RICOH KK
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