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.
Patent No.:
Date of Patent:
Oct. 04, 2022
Filed:
Mar. 22, 2021
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Masataka Sano, Tokyo-to, JP;
Yosuke Morino, Tokyo-to, JP;
Kimimasa Tamura, Tokyo-to, JP;
Koichiro Yamauchi, Tokyo-to, JP;
Takuya Sakata, Tokyo-to, JP;
Taku Mitsumori, Tokyo-to, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An eye opening degree calculation device includes: a processor configured to: calculate a degree of eye opening of a crew, based on an image in which a face of the crew appears; calculate a face direction angle of the crew with respect to a predetermined reference direction, based on the image; calculate a line-of-sight angle of the crew with respect to the predetermined reference direction, based on the image; correct the degree of eye opening or a threshold value which will be compared with the degree of eye opening, when a difference between the face direction angle and the line-of-sight angle is equal to or greater than a predetermined value; and determine an eye opening state of the crew, based on the corrected degree of eye opening or a comparison result of the degree of eye opening with the corrected threshold value.