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    • 2. 发明授权
    • Radiographic image detector and control method therefor
    • 射线照相图像检测器及其控制方法
    • US08637832B2
    • 2014-01-28
    • US13480136
    • 2012-05-24
    • Keita WatanabeTakeshi KuwabaraYasufumi OdaJun EnomotoTakeshi Koishi
    • Keita WatanabeTakeshi KuwabaraYasufumi OdaJun EnomotoTakeshi Koishi
    • G01T1/00
    • G01T1/247G01T1/208G01T1/24H04N5/32
    • A flat panel detector has an imaging area, in which pixels are arrayed in a matrix and signal lines for reading out electric signals from the pixels are provided, to detect an image of a subject from x-rays which are incident on the imaging area after penetrating the subject. Detective elements are arranged in the imaging area, to output electric signals corresponding to incident x-rays. Based on previously stored sensitivity data on the detective elements, high-sensitivity elements are selected from among the detective elements. The start of radiation and the end of radiation of x-rays toward the imaging area are detected by monitoring the electric signals from the selected high-sensitivity elements, to control operation of the imaging device on the basis of the detected start and end of radiation.
    • 平板检测器具有成像区域,其中像素被排列成矩阵,并且提供用于从像素读出电信号的信号线,以便在来自入射到成像区域的X射线之后的X射线上检测被摄体的图像 穿透主题。 检测元件布置在成像区域中,以输出对应于入射的X射线的电信号。 基于先前存储的检测元件的灵敏度数据,从检测元件中选择高灵敏度元素。 通过监测来自所选择的高灵敏度元件的电信号来检测X射线朝向成像区域的辐射开始和X射线的辐射结束,以根据检测到的辐射开始和结束来控制成像装置的操作 。
    • 4. 发明授权
    • Radiological image detection apparatus
    • 放射图像检测装置
    • US09106855B2
    • 2015-08-11
    • US13570911
    • 2012-08-09
    • Makoto SugizakiTakeshi KuwabaraYasufumi Oda
    • Makoto SugizakiTakeshi KuwabaraYasufumi Oda
    • G01J1/42H04N5/361H04N5/32
    • H04N5/361H04N5/32
    • A radiological image detection apparatus includes an imaging unit, a storage unit, a correction data generating unit, a correction unit, a disturbance detection unit, and a determination unit. The imaging unit acquires radiological image data. The storage unit stores correction data for correcting the radiological image data. The correction data generating unit generates new correction data based on dark image data and updates the correction data stored in the storage unit. The correction unit performs a correction process for the radiological image data using the correction data. The disturbance detection unit detects a disturbance acting when the imaging unit acquires the dark image data. The determination unit determines whether the updating of the correction data stored in the storage unit is permitted, or whether the acquisition of the dark image data is permitted, based on the detection result of the disturbance detection unit.
    • 放射线图像检测装置包括成像单元,存储单元,校正数据生成单元,校正单元,干扰检测单元和确定单元。 成像单元获取放射图像数据。 存储单元存储用于校正放射图像数据的校正数据。 校正数据生成单元基于暗图像数据生成新的校正数据,并更新存储在存储单元中的校正数据。 校正单元使用校正数据对放射图像数据执行校正处理。 干扰检测单元检测当成像单元获取暗图像数据时作用的干扰。 确定单元基于干扰检测单元的检测结果确定是否允许存储在存储单元中的校正数据的更新,或者是否允许获取暗图像数据。