Patent ID: 11963759
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 7:
8. The state determination device according to claim 1, wherein
the face feature value extraction region is the mouth region and a cheek region in the face region,
the determination information includes information for determining an unawakenedness level according to a number of times the user licked the user's lips and information for determining an unawakenedness level according to a number of times the user yawned, and
when a process of the determining whether the user is in the unawakened state or not is executed, the program which, when executed by the processor, performs processes of,
calculating the number of times the user licked the lips based on the face feature value extracted from the mouth region in each of the plurality of frames, determining the unawakenedness level based on the number of times the user licked the lips and the determination information, calculating the number of times the user yawned based on the face feature values extracted from the mouth region and the cheek region in each of the plurality of frames, determining the unawakenedness level based on the number of times the user yawned and the determination information, calculating a mean value of the determined unawakenedness levels, and determining that the user is in the unawakened state if the mean value is higher than or equal to a predetermined threshold value.