The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 23, 2024

Filed:

May. 21, 2021
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Shunya Osawa, Tokyo, JP;

Takahiro Otsuka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/11 (2006.01); A61B 5/00 (2006.01); G06V 40/16 (2022.01); G06V 40/20 (2022.01);
U.S. Cl.
CPC ...
A61B 5/1128 (2013.01); A61B 5/1123 (2013.01); A61B 5/4809 (2013.01); G06V 40/171 (2022.01); G06V 40/20 (2022.01);
Abstract

A state determination device includes: an extraction unit that extracts a face region representing a region corresponding to a face from each of a plurality of frames successively obtained by capturing images of a user's face, extracts face feature points representing parts of the face from the face region, calculates a face feature value extraction region as a region where a change occurs in the face region when the user is in an unawakened state based on the face feature points, and extracts a face feature value as a feature value from the face feature value extraction region; a state determination unit that determines whether the user is in the unawakened state or not based on the face feature value in each of the plurality of frames and previously generated determination information; and an output unit that outputs a determination result.


Find Patent Forward Citations

Loading…