A drowsiness detection device and method for a person (4), having a digital camera device (2) and a control unit (5). The digital camera device (2) includes a video processor (6). The digital camera device (2) is arranged to detect the eyes (3) of the person (4) in a series of images. The video processor (6) is arranged to detect eyelid movements in the images and convert images of the eyelid movements to an electric signal (s(t)) which is transferred to the control unit (5) The control unit (5) is arranged to fit a modeled signal (y(t)) against the electric signal (s(t)) and to determine whether the modeled signal (y(t)) constitutes an eyelid blink. The control unit (5) uses a number of modeled signals (y(t)) determined to constitute an eyelid blink to determine whether the level of alertness has fallen below a certain threshold.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Device and method for detecting drowsiness using eyelid movement


    Beteiligte:
    NILSSON BENNY (Autor:in) / ROSEN ERIK (Autor:in)

    Erscheinungsdatum :

    2015-12-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G06K Erkennen von Daten , RECOGNITION OF DATA / A61B DIAGNOSIS , Diagnostik / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme



    EYELID MOVEMENT PROCESSING FOR DETECTION OF DROWSINESS

    NILSSON BENNY / ROSEN ERIK | Europäisches Patentamt | 2019

    Freier Zugriff

    Eyelid detection device, drowsiness determination device, and eyelid detection method

    TAHARA NATSUKI / NAKAMURA YUDAI / HIRANO TAKASHI et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Driver Drowsiness Analysis Based on Eyelid Feature

    Wang, Shu / Zhang, Zhao / Wu, Zheng et al. | Springer Verlag | 2020


    Driver Drowsiness Analysis Based on Eyelid Feature

    Wang, Shu / Zhang, Zhao / Wu, Zheng et al. | TIBKAT | 2021