PROBLEM TO BE SOLVED: To provide an iris authentication device which easily reduces cost.SOLUTION: An iris authentication device includes: an imaging element 2 for acquiring an optical image formed on a light-receiving surface 21; a lens unit 3 for forming an optical image of a subject on the light-receiving surface 21; a drive mechanism 4 for moving the lens unit 3 along an optical axis direction; an image acquisition unit 51 which acquires images acquired by the imaging element 2 in accordance with a plurality of focal positions corresponding to the change in lens position due to displacement of the lens unit 3; a contrast detection unit 52 which detects contrast for each of the images; an image selection unit 53 which selects an image with the maximum contrast from among the images; and an authentication processing unit 54 which executes iris authentication, on the basis of the image selected by the image selection unit 53.SELECTED DRAWING: Figure 2

    【課題】コストを低減することが容易な虹彩認証装置を提供する。【解決手段】受光面21に形成された光学像を取得する撮像素子2と、受光面21に被写体の光学像を結像するためのレンズユニット3と、レンズユニット3を光軸方向に沿って移動させる駆動機構4と、レンズユニット3の移動に伴うレンズの位置変化に応じた複数の合焦位置に対応して撮像素子2によって取得された複数の画像を取得する画像取得部51と、その複数の画像について、それぞれコントラストを検出するコントラスト検出部52と、その複数の画像のうちコントラストが最大の画像を選択する画像選択部53と、画像選択部53によって選択された選択画像に基づき、虹彩認証を実行する認証処理部54とを備えた。【選択図】図2


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    Title :

    IRIS AUTHENTICATION DEVICE, VEHICLE WITH IRIS AUTHENTICATION DEVICE


    Additional title:

    虹彩認証装置、及び虹彩認証装置付車両


    Contributors:

    Publication date :

    2017-05-18


    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 / A61B DIAGNOSIS , Diagnostik / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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