To detect an abnormality sign quickly which causes an inoperable state of a driver.SOLUTION: A driver state estimation device includes: a head behavior detection part 21 for detecting behavior of a head of a driver from output of a camera 10 photographing the driver; and a detection part 30 for detecting an abnormality sign of the driver from the behavior of the head detected by the head behavior detection part 21. The detection part 30 calculates a periodic feature amount for time series data indicating the behavior of the head of the driver, calculates a time series variation pattern for the obtained periodic feature amount, compares the obtained time series variation pattern with a predetermined threshold, and determines presence/absence of the abnormality sign of the driver.SELECTED DRAWING: Figure 7

    【課題】ドライバの運転不能につながる異常予兆を、いち早くとらえる。【解決手段】ドライバ状態推定装置は、ドライバを撮影するカメラ10の出力からドライバの頭部の挙動を検知する頭部挙動検出部21と、頭部挙動検出部21によって検出された頭部の挙動からドライバの異常予兆を検知する検知部30とを備える。検知部30は、ドライバの頭部の挙動を表す時系列データに対して周期性特徴量を演算し、得た周期性特徴量に対して時系列変動パターンを演算し、得た時系列変動パターンを所定の閾値と比較し、ドライバの異常予兆の有無を判定する。【選択図】図7


    Access

    Download


    Export, share and cite



    Title :

    DRIVER STATE ESTIMATION DEVICE AND DRIVER STATE ESTIMATION METHOD


    Additional title:

    ドライバ状態推定装置およびドライバ状態推定方法


    Contributors:

    Publication date :

    2021-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



    DRIVER STATE ESTIMATION DEVICE AND DRIVER STATE ESTIMATION METHOD

    HYUGA TADASHI / SUWA MASAKI / KINOSHITA KOICHI | European Patent Office | 2018

    Free access

    DRIVER STATE ESTIMATION METHOD AND DRIVER STATE ESTIMATION DEVICE

    SHIMIZU TOSHIYUKI / GHEORGHE LUCIAN | European Patent Office | 2018

    Free access

    DRIVER STATE ESTIMATION DEVICE AND DRIVER STATE ESTIMATION METHOD

    HYUGA TADASHI / SUWA MASAKI / KINOSHITA KOICHI | European Patent Office | 2018

    Free access

    DRIVER STATE ESTIMATION DEVICE AND DRIVER STATE ESTIMATION METHOD

    HYUGA TADASHI / SUWA MASAKI | European Patent Office | 2018

    Free access

    DRIVER STATE ESTIMATION DEVICE AND DRIVER STATE ESTIMATION METHOD

    HYUGA TADASHI / SUWA MASAKI | European Patent Office | 2018

    Free access