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    • 103. 发明申请
    • IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
    • 图像处理装置和图像处理方法
    • US20090103826A1
    • 2009-04-23
    • US12253544
    • 2008-10-17
    • Naoki Yamada
    • Naoki Yamada
    • G06K9/40
    • A61B6/00A61B6/585
    • An image-data reading unit reads image data stored after radiation irradiation is performed from a radiation detector. An offset-data reading unit reads offset data in a case in which no radiation irradiation is performed from the radiation detector. After radiation irradiation is performed, a drive control section drives the image-data reading unit so that the image-data reading unit reads image data. Then, the drive control section drives the offset-data reading unit so that the offset-data reading unit reads offset data before the next irradiation is performed. In a period in which radiation irradiation is not performed, the image data and the offset data that have been read are sent to an image-handling section. The image data and the offset data that have been received by a data sending/receiving unit are subjected to subtraction processes by an image processing unit.
    • 图像数据读取单元从放射线检测器读取在辐射照射之后存储的图像数据。 偏移数据读取单元在从放射线检测器不进行放射线照射的情况下读取偏移数据。 在执行辐射照射之后,驱动控制部分驱动图像数据读取单元,使得图像数据读取单元读取图像数据。 然后,驱动控制部分驱动偏移数据读取单元,使得偏移数据读取单元在执行下一次照射之前读取偏移数据。 在不进行放射线照射的期间中,已经读取的图像数据和偏移数据被发送到图像处理部。 由数据发送/接收单元接收的图像数据和偏移数据由图像处理单元进行减法处理。