ON-VEHICLE DEVICE AND FACE AUTHENTICATION CONTROL METHOD

To provide an on-vehicle device and a face authentication control method capable of efficiently acquiring authentication data to be used for face authentication.SOLUTION: An on-vehicle device 20 comprises an imaging unit 21 for generating an image including the face of an occupant of a vehicle, a specification unit 22 for specifying a face direction showing the direction of the face and a face feature quantity of the face on the basis of the image, a communication unit 23 for receiving a trigger signal from a navigation device 10, and a control unit 24 for, when a first face direction specified based on the first image generated during a first period until a prescribed time passes after the trigger signal is received indicates a direction different from a reference direction, registering a first face feature amount specified based on the first face direction and the first image in a storage unit 25 .SELECTED DRAWING: Figure 1 【課題】顔認証に使用される認証データを効率よく取得可能な車載装置及び顔認証制御方法を提供すること。【解決手段】車載装置２０は、車両の乗員の顔を含む画像を生成する撮像部２１と、画像に基づいて、顔の方向を示す顔方向、及び顔の特徴量を示す顔特徴量を特定する特定部２２と、ナビゲーション装置１０からトリガ信号を受信する通信部２３と、トリガ信号が受信された後、所定時間が経過するまでの第１期間に生成された第１画像に基づき特定された第１顔方向が、基準方向と異なる方向を示す場合、第１顔方向及び第１画像に基づき特定された第１顔特徴量を記憶部２５に登録する制御部２４と、を備える。【選択図】図１