Open-eye or closed-eye determination apparatus, degree of eye openness estimation apparatus and program

A technology for judging devices and estimating values, which is applied in image data processing, image data processing, instruments, etc., and can solve problems such as inability to work correctly

Inactive Publication Date: 2011-08-10
AISIN SEIKI KK
View PDF7 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a phenomenon that occurs when the distribution is defined based on the absolute value of the eye opening width, and it may not work correctly when the reference value (distance from the face) changes.

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
  • Open-eye or closed-eye determination apparatus, degree of eye openness estimation apparatus and program
  • Open-eye or closed-eye determination apparatus, degree of eye openness estimation apparatus and program
  • Open-eye or closed-eye determination apparatus, degree of eye openness estimation apparatus and program

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this embodiment, a case is shown in which the eye opening / closing determining device and the eye opening degree estimating device of the present invention are used in a driver's drowsiness warning device.

[0030] figure 1 It is a block diagram showing the main configuration of the drowsiness alarm device of this embodiment. As shown in the figure, the drowsiness alarm device includes an imaging unit 11 , an eye opening width measurement unit 12 , a filter unit 13 , an eye opening and closing determination unit 14 , an eye opening degree estimation unit 15 , a drowsiness determination unit 16 , and an alarm unit 17 .

[0031] The imaging unit 11 is constituted by a CCD camera or the like, and is installed so as to be able to photograph the driver from approximately the front. The imaging unit 11 images an area including at least eyes of the driver.

[003...

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

An open-eye or closed-eye determination apparatus is provided with: an image capture section 11 for capturing an image of a region including the eye of an investigation subject; a width of eye opening measurement section 12 for detecting top and bottom eyelids of an investigation subject from the image captured by the image capture section 11 and measuring the width of eye opening between the edges of the top and bottom eyelids; a filter section 13 for subjecting the width of eye opening measured by the width of eye opening measurement section 12 to filter processing; and an open-eye or closed-eye determination section 14 for determining closed-eye when a value of the width of eye opening obtained by the filter section 13 minus the width of eye opening measured by width of eye opening measurement means is greater than a threshold value, and determining open-eye when this difference is a threshold value or less. According to this open-eye or closed-eye determination apparatus, open-eye or closed-eye determination can be made with good precision, without being influenced by image capture conditions and distance to the face.

Description

technical field [0001] The present invention relates to an eye opening / closing determining device, an eye opening degree estimating device and a program used in a drowsiness alarm device and the like which estimate the driver's awakening state and issue an alarm as needed. Background technique [0002] A drowsiness detection device has been proposed which detects a driver's drowsiness state and issues an alarm in order to improve the safety of automobiles and the like. Such devices that have been disclosed include, for example, an eye opening and closing monitoring device that calculates the positions of the upper and lower eyelids based on image data obtained by photographing the driver's face, and calculates the degree of opening and the degree of opening and closing of the eyes based on the values. The threshold value (for example, refer to Patent Document 1). Specifically, the minimum value of the opening is calculated based on the time series data of the opening, and t...

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 Applications(China)
IPC IPC(8): G08G1/16G06T1/00G06T7/20G08B21/06
CPCG06K9/00597G08B21/06G06V40/18
Inventor 寺岛立太依田拓肋田敏裕津田太司大见拓宽永井史也
Owner AISIN SEIKI KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap