To provide a drowsiness detector and a program for the drowsiness detection capable of improving accuracy of drowsiness detection.SOLUTION: A PERCLOS calculation unit 33 calculates a PERCLOS, which is a time ratio that a driver is closing his or her eyes for a fixed time Ta, on the basis of an image captured by a camera 2. A drowsiness detection unit 34 detects drowsiness of the driver when the PERCLOS is a threshold or more. A threshold setting unit 35 sets the threshold lower when the initial PERCLOS calculated first from the start of driving is less than a% than when the initial PERCLOS is a% or more.SELECTED DRAWING: Figure 4

    【課題】眠気の検出精度向上を図った眠気検出装置及び眠気検出用のプログラムを提供する。【解決手段】PERCLOS算出部33が、カメラ2が撮影した画像に基づいて、一定時間Taに運転者が目を閉じている時間割合であるPERCLOSを算出する。眠気検出部34が、PERCLOSが閾値以上のときに運転者の眠気を検出する。閾値設定部35が、運転開始から最初に算出された初期のPERCLOSがa%未満である場合、初期のPERCLOSがa%以上である場合よりも、閾値を低く設定する。【選択図】図4


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    Title :

    DROWSINESS DETECTOR AND PROGRAM FOR DROWSINESS DETECTION


    Additional title:

    眠気検出装置及び眠気検出用のプログラム


    Contributors:

    Publication date :

    2024-06-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    A61B DIAGNOSIS , Diagnostik / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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