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

Extraction method and extraction device for direction of eye movement based on electro-oculogram signals

A technology of electrooculogram signal and extraction device, which is applied in the cross field of neuroengineering and informatics

Active Publication Date: 2013-05-01
TSINGHUA UNIV
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no eigenvector extraction method and device based on the eye movement direction of the electrooculogram signal

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
  • Extraction method and extraction device for direction of eye movement based on electro-oculogram signals
  • Extraction method and extraction device for direction of eye movement based on electro-oculogram signals
  • Extraction method and extraction device for direction of eye movement based on electro-oculogram signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] The content of the invention of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0068] The eye movement direction extraction device based on the electrooculograph signal provided by this embodiment includes an acquisition module, an amplifier, an analog-to-digital conversion module, a processing module, a computer host and a display, such as figure 1 shown. The acquisition module is electrically connected with the amplifier, the analog-to-digital conversion module and the processing module in turn. The computer host is electrically connected to the display and the processing module respectively.

[0069] The acquisition module is used for collecting electrooculogram signals, and is used for recording the time of collecting electrooculogram signals. The amplifier is used to amplify the electro-oculogram signal from the acquisition module. The analog-to-digital conversion module is used fo...

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 an extraction method and an extraction device for the direction of eye movement based on electro-oculogram signals. The method sequentially comprises a training phase a and a testing phase b; the training phase a comprises the following steps of: (a1) arranging an electrode; (a2) beginning to collect electro-oculogram signals; (a3) pre-treating; (a4) carrying out smoothing treatment; (a5) extracting the characteristic vectors of the directions of eye movement; (a6) projecting the electro-oculogram signals in different directions to the characteristic vector in the same direction; (a7) carrying out differential treatment on a projecting result; and (a8) preserving the characteristic vectors; and the testing phase b comprises the following steps of: (b1) arranging an electrode; (b2) beginning to collect electro-oculogram signals; (b3) pre-treating; (b4) carrying out smoothing treatment; (b5) projecting the electro-oculogram signals to the characteristic vectors of the directions of the eye movement, which are obtained in the training phase a; (b6) carrying out differential treatment on a projecting result; and (b7) identifying the direction of the eye movement of a person to be tested in the testing phase b according to the positive-negative classification of the electro-oculogram signals corresponding to the maximum amplitude of a differential result .

Description

technical field [0001] The invention relates to the cross technical field of neural engineering and informatics, in particular to an eye movement direction extraction method and an extraction device based on electrooculogram signals. Background technique [0002] Traditional computer systems use keyboards and mice as the main human-computer interaction devices, but these human-computer interaction devices cannot meet the needs of people with limb motor dysfunction. Scholars have conducted extensive research on the subject of barrier-free human-computer interaction, trying to design a human-computer interaction interface that does not depend on limb movement, and on this basis, design a set of human-computer interaction interfaces that are convenient for people with limb movement dysfunction. Barrier-free human-computer interaction system. Years of research have found that barrier-free human-computer interaction methods with relatively promising application prospects mainly ...

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
IPC IPC(8): A61B5/0488
Inventor 高小榕郑敏敏张罡高上凯
Owner TSINGHUA UNIV
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