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    • 9. 发明授权
    • Imaging system, image processing method therefor, and program therefor
    • 成像系统,图像处理方法及其程序
    • US08541754B2
    • 2013-09-24
    • US13390592
    • 2010-08-25
    • Katsuro TakenakaTadao EndoToshio KameshimaMasayoshi AkiyamaTomoyuki YagiKeigo Yokoyama
    • Katsuro TakenakaTadao EndoToshio KameshimaMasayoshi AkiyamaTomoyuki YagiKeigo Yokoyama
    • G01T1/17
    • G01T1/17
    • An imaging system includes a detector (104) having a first area where irradiation occurs in a radiation field (A) and a second area other than the first area where irradiation occurs in a radiation field (B) and configured to output image data, and an image processing unit (601) that performs image processing on the image data. The image processing unit (601) includes a storage unit (602) that stores dark output information, a measurement unit (607) that measures the integral dose of the radiation or light applied to a pixel in the first area and the integral dose of the radiation or light applied to a pixel in the second area, and a correction unit (610) that corrects the image data, based on the dark output information obtained from the storage unit (602) and the integral doses measured by the measurement unit (607), when changing of the radiation field has occurred.
    • 成像系统包括检测器(104),其具有在辐射场(A)中发生照射的第一区域和除辐射场(B)内发生的照射的第一区域以外的第二区域,并且被配置为输出图像数据;以及 对图像数据执行图像处理的图像处理单元(601)。 图像处理单元(601)包括存储暗输出信息的存储单元(602),测量单元(607),其测量施加到第一区域中的像素的辐射或光的积分剂量和 施加到第二区域中的像素的辐射或光,以及基于从存储单元(602)获得的暗输出信息和由测量单元(607)测量的积分剂量来校正图像数据的校正单元(610) ),当发生辐射场变化时。