To calculate the height of an in-vehicle camera from a captured image.SOLUTION: An image processing device 1 has a processing unit 2. The processing unit 2 acquires an image captured by a camera 4 mounted on a vehicle 3. Next, the processing unit 2 extracts feature points from the acquired image. Next, the processing unit 2 identifies road surface feature points existing on a road surface 5 from the extracted feature points. As the road surface feature points, for example, among the feature points extracted based on the feature points and the three-dimensional coordinates of the camera 4, the feature points included in a predetermined range with respect to the camera 4 are specified. Next, the processing unit 2 calculates the height of the camera 4 from the road surface 5 based on positions of the specified road surface feature points.SELECTED DRAWING: Figure 1

    【課題】車載カメラの高さを撮影画像から算出する。【解決手段】画像処理装置1は、処理部2を有する。処理部2は、車両3に搭載されたカメラ4で撮影された画像を取得する。次に、処理部2は、取得された画像から特徴点を抽出する。次に、処理部2は、抽出された特徴点の中から路面5上に存在する路面特徴点を特定する。路面特徴点としては、例えば、特徴点およびカメラ4の三次元座標に基づき、抽出された特徴点のうち、カメラ4を基準とした所定の範囲に含まれる特徴点が特定される。次に、処理部2は、特定された路面特徴点の位置に基づいて、路面5からのカメラ4の高さを算出する。【選択図】図1


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    Title :

    CAMERA HEIGHT CALCULATION METHOD AND IMAGE PROCESSING DEVICE


    Additional title:

    カメラ高さ算出方法および画像処理装置


    Contributors:

    Publication date :

    2021-11-01


    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 / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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