To provide a droplet detection device that is able to detect droplets adhering to a lens.SOLUTION: A droplet detection device 2 receives a photographic image 1 generated by a camera C and determines whether a droplet is adhering to a lens of the camera C, based on the received photographic image 1. The droplet detection device 2 includes an image acquisition unit 4, a candidate area specifying unit 5, and a droplet determination unit 6. The image acquisition unit 4 acquires the photographic image 1 generated by the camera C. The candidate area specifying unit 5 specifies, for each predetermined unit area, a level change of an image signal in a predetermined direction in the photographic image 1 acquired by the image acquisition unit 4 and, based on the specified level change, specifies a droplet candidate area 50. The droplet determination unit 6 determines whether a droplet is adhering to the lens of the camera C, based on a shape of the droplet candidate area 50 specified by the candidate area specifying unit 5.SELECTED DRAWING: Figure 2

    【課題】レンズに付着した液滴を検出することができる液滴検出装置を提供することを課題とする。【解決手段】液滴検出装置2は、カメラCにより生成された撮影画像1を受け、その受けた撮影画像1に基づいて液滴がカメラCのレンズに付着しているか否かを判断する。液滴検出装置2は、画像取得部4と、候補領域特定部5と、液滴判断部6とを備える。画像取得部4は、カメラCにより生成された撮影画像1を取得する。候補領域特定部5は、画像取得部4により取得された撮影画像1における所定方向の画像信号のレベル変化を所定の単位領域ごとに特定し、特定したレベル変化に基づいて液滴候補領域50を特定する。液滴判断部6は、候補領域特定部5により特定された液滴候補領域50の形状に基づいて、液滴がカメラCのレンズに付着しているか否かを判断する。【選択図】図2


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    Title :

    DROPLET DETECTION DEVICE


    Additional title:

    液滴検出装置


    Contributors:

    Publication date :

    2021-10-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / 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



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