Title:
CLASSIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/048682
Kind Code:
A1
Abstract:
This classification method classifies the state of a person from eye information. This classification method uses an image capture device, a feature extraction unit, and a classifier to classify the state of a person from eye information. The image capture device has a function for generating a group of images by means of continuous shooting, said group of images preferably including an image of a region of an eye. The eye has a black region and a white region. The feature extraction unit: performs a step for extracting the region of the eye from the group of images; then performs a step for extracting a blink amplitude; then performs a step for detecting an image determined to show that a blink has begun; then performs a step for storing, as first data, an image determined to show that the blink has ended; and then performs a step for storing, as second data, an image generated a certain time after the first data. The feature extraction unit performs a step for extracting the white region from the first data and the second data. The classifier can use the white region as learning data.
Inventors:
OGUNI TEPPEI (JP)
FUKUTOME TAKAHIRO
FUKUTOME TAKAHIRO
Application Number:
PCT/IB2020/058111
Publication Date:
March 18, 2021
Filing Date:
September 01, 2020
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
G06T7/20; A61B3/113; A61B5/11; A61B5/16
Domestic Patent References:
| WO2009001558A1 | 2008-12-31 |
Foreign References:
| JP2015132783A | 2015-07-23 | |||
| JP2017143889A | 2017-08-24 |
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