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:
Aug. 06, 2019
Filed:
Jan. 12, 2018
Applicants:
Sangmyung University Industry-academy Cooperation Foundation, Seoul, KR;
Center of Human-centered Interaction for Coexistence, Seoul, KR;
Inventors:
Min Cheol Whang, Goyang-si, KR;
Sang In Park, Seoul, KR;
Myoung Ju Won, Cheonan-si, KR;
Dong Won Lee, Seongnam-si, KR;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 (2006.01); A61B 3/11 (2006.01); A61B 5/16 (2006.01); A61B 5/00 (2006.01); A61B 5/0452 (2006.01); A61B 5/0482 (2006.01); A61B 5/0484 (2006.01);
U.S. Cl.
CPC ...
A61B 3/112 (2013.01); A61B 5/162 (2013.01); A61B 5/163 (2017.08); A61B 5/0452 (2013.01); A61B 5/0482 (2013.01); A61B 5/04842 (2013.01); A61B 5/4064 (2013.01); A61B 5/7235 (2013.01);
Abstract
Provided are a method and system for noncontact vision-based 3D cognitive fatigue measuring. The method comprises: acquiring pupil images of a subject exposed to visual stimuli; extracting a task evoked pupillary response (TEPR) by using the pupil images; detecting dominant peaks from the TEPR; calculating latency of dominant peaks; and determining cognitive fatigue of the subject by comparing a value of the latency to a predetermined reference value.