PROBLEM TO BE SOLVED: To provide a facial direction detection device capable of detecting an angle of a facial direction of an object person even when the angle of the facial direction of the object person exceeds an angle range in which a face of the object person can be recognized from image data.SOLUTION: A facial direction angular velocity Fθv(t-1) at a time immediately before the angle of the facial direction of a driver exceeds a detection range is stored. A lapse time T from when the angle of the facial direction of the driver exceeds the detection range is counted by a timer. Then, when it is considered that a movement in a face region of the driver is stopped, an estimated value Rθ of the angle of the facial direction is calculated on the basis of the stored facial direction angular velocity Fθv(t-1) and the lapse time T.SELECTED DRAWING: Figure 3

    【課題】対象者の顔向きの角度が、画像データから対象者の顔が認識できる角度範囲を越えた場合であっても、対象者の顔向きの角度を検出することが可能な顔向き検出装置を提供すること。【解決手段】運転者の顔向き角度が検知範囲を超える直前の顔向き角速度Fθv(t−1)が保存される。さらに、運転者の顔向き角度が検知範囲を超えてからの経過時間Tをタイマーにてカウントする。そして、運転者の顔領域の動きが停止したとみなされた時点で、保存されている顔向き角速度Fθv(t−1)と経過時間Tとに基づいて、顔向き角度の推定値Rθを算出する。【選択図】図3


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    Title :

    FACIAL DIRECTION DETECTION DEVICE AND WARNING SYSTEM FOR VEHICLE


    Additional title:

    顔向き検出装置及び車両用警告システム


    Contributors:

    Publication date :

    2016-04-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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