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1. US20210338109 - FATIGUE DETERMINATION DEVICE AND FATIGUE DETERMINATION METHOD

Office
United States of America
Application Number 17372840
Application Date 12.07.2021
Publication Number 20210338109
Publication Date 04.11.2021
Publication Kind A1
IPC
A61B 5/11
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
103Measuring devices for testing the shape, pattern, size or movement of the body or parts thereof, for diagnostic purposes
11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
CPC
A61B 5/1128
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
103Detecting, measuring or recording devices for testing the shape, pattern, ; colour,; size or movement of the body or parts thereof, for diagnostic purposes
11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
1126using a particular sensing technique
1128using image analysis
A61B 5/1107
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
103Detecting, measuring or recording devices for testing the shape, pattern, ; colour,; size or movement of the body or parts thereof, for diagnostic purposes
11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
1107Measuring contraction of parts of the body, e.g. organ, muscle
A61B 5/112
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
103Detecting, measuring or recording devices for testing the shape, pattern, ; colour,; size or movement of the body or parts thereof, for diagnostic purposes
11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
112Gait analysis
Applicants MITSUBISHI ELECTRIC CORPORATION
Inventors Hirofumi NISHIKAWA
Title
(EN) FATIGUE DETERMINATION DEVICE AND FATIGUE DETERMINATION METHOD
Abstract
(EN)

A skeleton extraction unit (120) extracts skeleton information expressing in a time series a motion of a skeleton of a person from two-dimensional video data (161) obtained by capturing a walking movement of the person. A walk analysis unit (130) calculates walk analysis data (31) including arm swing information expressing an arm swing state of the person in walking and gait information expressing a gait state of the person in walking, using the video data (161). A determination unit (150) compares a determination threshold value (164) for determining a fatigue degree of the person with the walk analysis data (31) of the person, and determines the fatigue degree of the person using a comparison result. The determination threshold value (164) includes a threshold value of the arm swing information and a threshold value of the gait information.