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    • 2. 发明专利
    • Image processing method and apparatus and a radiation image capturing processing method and apparatus
    • 空值
    • JP5311846B2
    • 2013-10-09
    • JP2008050787
    • 2008-02-29
    • 富士フイルム株式会社
    • 弘毅 中山
    • A61B6/00G06T1/00G21K1/04H04N1/387
    • G06T5/008G06T7/136G06T2207/10116G06T2207/30068
    • Acquiring radiation image data representing a radiation image of a subject photographed using a radiation exposure field aperture, acquiring information of a radiation exposure field area determined by the exposure field aperture and relating it to the radiation image data based on the information, sequentially detecting pixel data of pixels from adjacent to the boundary line of the exposure field area toward the inner side thereof in the radiation image data, sequentially determining if the values of the detected pixel data are not greater than a predetermined threshold value, terminating the detection at a point where the value of the detected pixel data is greater than the predetermined threshold value, and performing a blackening process on pixel data of a pixel outside of the exposure field area and pixel data of a pixel whose value is determined to be not greater than the predetermined threshold value.
    • 获取表示使用辐射曝光场孔拍摄的被摄体的放射线图像的放射线图像数据,获取由曝光场孔径确定的辐射曝光场区域的信息,并且基于该信息将其与放射线图像数据相关联,依次检测像素数据 在曝光图像数据中从邻近曝光场区域的边界线朝向其内侧的像素依次确定检测像素数据的值是否不大于预定阈值,终止在 检测出的像素数据的值大于预定阈值,并且对曝光区域外的像素的像素数据进行黑化处理,并且确定其值被确定为不大于预定阈值的像素的像素数据 值。