Title:
A sleepiness estimating device, a sleepiness estimation method, an un-temporary recording medium in which computer reading is possible
Document Type and Number:
Japanese Patent JP6110396
Kind Code:
B2
Abstract:
A drowsiness estimation device comprises an imaging unit 1, a regional temperature calculation unit 6, and a weighted subtraction unit 7. The imaging unit 1 obtains visible spectrum image data in a visible spectrum capture mode and obtains infra-red image data indicating a surface body temperature distribution for a subject's body in an infra-red capture mode. The regional temperature calculation unit 6 detects a temperature of an ocular center region within the surface body temperature distribution indicated by the infra-red image data. The weighted subtraction unit 7 applies a correction to a temperature parameter for drowsiness estimation, based on the detected ocular center region temperature. A drowsiness estimation for the user is then performed according to the corrected parameter.
Inventors:
Masatoshi Matsuo
Application Number:
JP2014539619A
Publication Date:
April 05, 2017
Filing Date:
October 04, 2013
Export Citation:
Assignee:
Panasonic Intellectual Property Corporation of America
International Classes:
A61B5/16; A61B5/01; A61B5/18
Domestic Patent References:
| JP200768620A | ||||
| JP53876A | ||||
| JP2007516018A | ||||
| JP2010133692A | ||||
| JP2010516407A |
Foreign References:
| US20040090334 |
Attorney, Agent or Firm:
Patent business corporation Nakajima intellectual property integrated office
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