A luminance control device includes a measurement unit configured to measure a pupil diameter of a driver based on an image in which a driver's face is imaged, a luminance estimation unit configured to estimate luminance of light incident on a pupil of the driver based on the image, a pupil diameter estimation unit configured to estimate a pupil diameter with respect to the luminance estimated, a pupil diameter difference calculation unit configured to calculate a pupil diameter difference between the measured pupil diameter and the estimated pupil diameter, and a controller configured to output control information for controlling a control subject so that luminance is increased in at least one display region in which an image of surroundings of a vehicle taken by at least one image device is displayed, when it is determined that a dim portion is being focused on, based on the pupil diameter difference.


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    Title :

    Luminance control device, luminance control system, and luminance control method


    Contributors:

    Publication date :

    2021-05-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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