RESPIRATION DETERMINATION DEVICE, OCCUPANT STATE DETERMINATION DEVICE, RESPIRATION DETERMINATION METHOD

摘要

The present invention comprises: a video acquisition unit (1) that acquires video that has imaged an occupant in a vehicle; a mouth opening state information acquisition unit (3) that acquires mouth opening state information relating to the mouth opening state of the occupant based on the video acquired by the video acquisition unit (1); a temperature information acquisition unit (2) that acquires temperature information of the respiratory section including the mouth of the occupant; a mouth opening change amount information acquisition unit (4) that acquires mouth opening change amount information related to the change amount of the mouth opening state of the occupant, based on the mouth opening state information acquired by the mouth opening state information acquisition unit (3); a respiration determination unit (51) that determines the occupant is not breathing by mouth when conversation determination conditions are satisfied by the change amount of the mouth opening state of the occupant indicated by the mouth opening change amount information acquired by the mouth opening change amount information acquisition unit (4); and a respiration detection unit (52) that detects the state of mouth breathing by the occupant based on the temperature information of the respiratory section acquired by the temperature information acquisition unit (2), and the determination results determined by the respiration determination unit.