IMAGE PROCESSING SYSTEM AND IMAGE PROCESSING METHOD

• Main Authors: INOUE HIROO, TAKAGI HIDEKAZU
• Format: Patent
• Language: English; Japanese
• Published: 23.03.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To efficiently and precisely acquire a skew angle of a document image and an assembly angle of a sensor device.SOLUTION: An image processing system comprises: image acquiring means for acquiring image data of a document image; extracting means for extracting a plurality of feature points of the document image from the acquired image data of the document image; associating means for associating coordinates of the plurality of feature points of a registered document image which is previously registered with coordinates of the plurality of feature points of the extracted document image; correspondence acquiring means for acquiring coordinate correspondence between the coordinates of the plurality of feature points of the registered document image and the coordinates of the plurality of feature points of the document image, which are associated; and angle acquiring means for acquiring a skew angle of the document image to a prescribed direction by using the acquired coordinate correspondence and acquiring an assembly angle of the image acquiring means to a prescribed assembly direction.SELECTED DRAWING: Figure 3 【課題】原稿画像の斜行角度とセンサデバイスの組付け角度とを効率的且つ正確に取得すること。【解決手段】画像処理装置は、原稿画像の画像データを取得する画像取得手段と、取得した原稿画像の画像データから、前記原稿画像の複数の特徴点を抽出する抽出手段と、予め登録された登録原稿画像の複数の特徴点の座標と、抽出した前記原稿画像の複数の特徴点の座標とを対応付ける対応付け手段と、対応付けされた前記登録原稿画像の複数の特徴点の座標と前記原稿画像の複数の特徴点の座標との間の座標対応関係を取得する対応関係取得手段と、取得した前記座標対応関係を用いて、所定方向に対する前記原稿画像の斜行角度を取得すると共に、所定の組付け方向に対する前記画像取得手段の組付け角度を取得する角度取得手段と、を備える。【選択図】 図３