Eye opening degree calculation device

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; calc...

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Bibliographische Detailangaben
Hauptverfasser:	Tamura, Kimimasa, Sakata, Takuya, Sano, Masataka, Morino, Yosuke, Yamauchi, Koichiro, Mitsumori, Taku
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES COUNTING DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE PERFORMING OPERATIONS PHYSICS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT SURGERY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	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.