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    • 1. 发明申请
    • RADIATION IMAGE CAPTURING APPARATUS
    • 辐射图像捕获设备
    • US20130015327A1
    • 2013-01-17
    • US13545107
    • 2012-07-10
    • Kouji AMITANI
    • Kouji AMITANI
    • H01L27/146H01L27/148
    • H01L27/14618H01L27/14632H01L27/14663H01L2924/0002H04N5/32H04N5/374H04N5/378H01L2924/00
    • A control device of a radiation image capturing apparatus performs repeated reading of leak data prior to radiation image capturing operation and, when a threshold value has been exceeded by the leak data having been read out, said control device detects the start of irradiation. If there are periodic fluctuations in the leak data read out prior to radiation image capturing operation even though irradiation has not started, said control device determines whether or not a threshold value has been exceeded by a value obtained by subtracting a previously obtained fluctuation pattern of the leak data from the read-out leak data during a time period including at least a time period when the leak data fluctuates.
    • 放射线图像捕获装置的控制装置在放射线图像捕获操作之前执行泄漏数据的重复读取,并且当已经被读出的泄漏数据超过了阈值时,所述控制装置检测到照射的开始。 如果即使照射尚未开始,在放射线图像拍摄操作之前读出的泄漏数据中也存在周期性波动,则所述控制装置确定是否超过了阈值,所述值是通过减去先前获得的波形图 在包括泄漏数据波动的至少一个时间段的时间段期间,从读出的泄漏数据泄漏数据。
    • 2. 发明授权
    • Radiation image processing apparatus
    • 辐射图像处理装置
    • US06529618B1
    • 2003-03-04
    • US09385558
    • 1999-08-30
    • Hiromu OharaKouji Amitani
    • Hiromu OharaKouji Amitani
    • G06K900
    • G06T11/005G06T5/005G06T5/20H04N5/32H04N5/325H04N5/367
    • A radiation image processing apparatus is provided with a defect detecting device to receive first image data from a sensor which comprises plural elements arranged two-dimensionally, converts irradiated radiation into electric image signals by the plural elements and outputs image data in which each element outputs an image datum of a single pixel, the defect detecting device to detect an image defect in the first image data and to produce defect information indicating a position of the image defect; a memory to store the defect information; and a correcting device for receiving second image data outputted from the sensor on a condition that the sensor is irradiated with radiation passing through an object, for correcting the second image data on the basis of the defect information read out from the memory, and for producing third image data.
    • 一种放射线图像处理装置,具备:缺陷检测装置,用于接收来自传感器的第一图像数据,所述传感器包括二维布置的多个元件,将照射的辐射转换为多个元件的电子图像信号,并输出各个元件输出的图像数据 所述缺陷检测装置检测第一图像数据中的图像缺陷并产生指示图像缺陷的位置的缺陷信息; 用于存储缺陷信息的存储器; 以及校正装置,用于在传感器被照射穿过物体的辐射的条件下接收从传感器输出的第二图像数据,用于基于从存储器读出的缺陷信息来校正第二图像数据,并且用于产生 第三图像数据。
    • 3. 发明授权
    • Radiation image capturing apparatus
    • 辐射摄影装置
    • US06476394B1
    • 2002-11-05
    • US09718548
    • 2000-11-22
    • Kouji AmitaniHisashi YonekawaTsutomu KawanoAkira Ishisaka
    • Kouji AmitaniHisashi YonekawaTsutomu KawanoAkira Ishisaka
    • G01T120
    • G01T1/2018
    • A radiation image capturing apparatus, comprises a radiation image detector arranged so a to face a radiation source or an object and comprising a scintillator to receive a radiation image and to emit image light; a lens unit array comprising a plurality of lens units and to focus the image light; and a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data; and a calibrating device comprising a repetition pattern provided at a light incident side of the plurality of area sensors and to conduct calibration to correct the image data converted by the plurality of area sensors on the basis of the repetition pattern.
    • 一种放射线图像捕获装置,包括:辐射图像检测器,被布置为面对辐射源或物体,并包括闪烁体以接收辐射图像并发射图像光; 透镜单元阵列,包括多个透镜单元并且用于聚焦图像光; 以及多个区域传感器,其布置成数量对应于所述多个透镜单元,并将聚焦图像光转换成图像数据; 以及校准装置,其包括设置在所述多个区域传感器的光入射侧的重复图案,并且基于所述重复图案进行校准以校正由所述多个区域传感器转换的图像数据。
    • 4. 发明授权
    • Radiation image capturing system
    • 辐射摄影系统
    • US08536535B2
    • 2013-09-17
    • US13370539
    • 2012-02-10
    • Kouji AmitaniTatsuya TakagiRyohei Ito
    • Kouji AmitaniTatsuya TakagiRyohei Ito
    • H01L27/146
    • H04N5/32
    • In a radiation image capturing system, prior to radiation image capturing operation, the radiation image capturing apparatus repeats on an alternate basis, a step of reading leak data and a step of resetting each of the radiation detection elements, wherein the step of reading leak data is performed by turning off all switch units, allowing a reading circuit to perform cyclic reading operations under this condition and converting electric charge leaking out of radiation detection elements through the switch units into the leak data, thereby detecting a start of irradiation based on the leak data having been read out. The image processing apparatus analyzes a profile of image data along the extension of signal lines of the radiation image capturing apparatus, and identifies a range of the image data where a defect has occurred, whereby the image data in the identified range is corrected.
    • 在放射线图像拍摄系统中,在放射线图像捕获操作之前,放射线图像捕获装置在替代的基础上重复,读取泄漏数据的步骤和重置每个辐射检测元件的步骤,其中读取泄漏数据的步骤 通过关闭所有开关单元来执行,允许读取电路在该条件下执行循环读取操作,并且将通过开关单元泄漏出的辐射检测元件的电荷转换成泄漏数据,从而基于泄漏检测开始照射 数据被读出。 图像处理装置沿着放射线摄影装置的信号线的扩展来分析图像数据的轮廓,并且识别发生缺陷的图像数据的范围,从而校正所识别的范围内的图像数据。
    • 7. 发明申请
    • RADIOGRAPHIC IMAGE CAPTURING SYSTEM AND RADIOGRAPHIC IMAGE CAPTURING DEVICE
    • 放射图像捕获系统和放射图像捕获装置
    • US20120217410A1
    • 2012-08-30
    • US13402178
    • 2012-02-22
    • Kouji AMITANI
    • Kouji AMITANI
    • G01T1/24
    • H04N5/32H04N5/367
    • A radiation image capturing system includes: a detecting section provided with a plurality of radiation detection elements arranged two-dimensionally in small regions each partitioned by a plurality of scanning lines and a plurality of signal lines, wherein, prior to radiation image capturing operation, processing of reading out leak data from the radiation detection elements is repeated, a start of irradiation is detected when any one of values calculated by calculation of the leak data using a plurality of mutually differing calculation methods exceeds a corresponding set threshold value among the threshold values set to the plurality of the calculation methods, a scope of the image data containing a defect based on information of the calculation method is identified, and then the image data in the identified scope is repaired with a reparation method corresponding to the calculation method.
    • 一种放射线图像拍摄系统,包括:检测部,其具有被分割成多条扫描线和多条信号线的小区域二维排列的多个放射线检测元件,其中,在放射线图像拍摄动作之前, 重复从放射线检测元件读出泄漏数据,当通过使用多个相互不同的计算方法的泄漏数据的计算计算出的任何一个值在阈值设定中超过相应设定的阈值时,检测到开始照射 对于多个计算方法,识别基于计算方法的信息包含缺陷的图像数据的范围,然后用与计算方法相对应的修复方法修复所识别的范围内的图像数据。
    • 9. 发明授权
    • Radiation image radiographic apparatus
    • 辐射图像放射照相设备
    • US07103140B2
    • 2006-09-05
    • US10719332
    • 2003-11-20
    • Kouji AmitaniTakahiro Mitsumoto
    • Kouji AmitaniTakahiro Mitsumoto
    • A61B6/04G01N23/04G03B42/02
    • A61B6/484A61B6/0414A61B6/107A61B6/4216A61B6/4233A61B6/4283A61B6/4494A61B6/502A61B6/5235
    • A user-friendly, inexpensive radiation image radiographing apparatus capable of easily switching between absorption contrast image radiography and phase contrast image radiography. The radiation image radiographing apparatus has: a radiation source; a subject platform for supporting a subject so as to face the subject to the radiation source; and a plurality of supporting platforms for supporting a radiation image information detecting member at a side opposite to the radiation source with respect to the subject platform, the radiation image information detecting member for detecting radiation image information based on radiation transmitted through the subject, wherein distances between the plurality of supporting platforms and the radiation source are different from each other.
    • 能够容易地在吸收对比度图像摄影和相位差图像摄影之间切换的用户友好且廉价的放射线图像摄影装置。 辐射图像摄影装置具有:辐射源; 主题平台,用于支持对象以面对受试者的辐射源; 以及多个支撑平台,用于相对于被摄体平台在与辐射源相对的一侧支撑放射线图像信息检测部件,所述放射线图像信息检测部件用于基于通过被检体传播的辐射来检测放射线图像信息, 在多个支撑平台和辐射源之间彼此不同。
    • 10. 发明授权
    • Method for forming radiographic image
    • 用于形成放射照相图像的方法
    • US06192102B1
    • 2001-02-20
    • US09259610
    • 1999-03-01
    • Koji OnoKouji Amitani
    • Koji OnoKouji Amitani
    • G01N2304
    • G03C5/16G03C1/0051G03C2200/58
    • A method for forming radiographic image is disclosed. The method comprises the steps of (1) capturing a radiographic image by a flat-panel detector, (2) reading out the radiographic image from the flat-panel detector as image signal, (3) modulating intensity of a laser light beam by the image signals, (4) exposing a silver halide photographic light-sensitive material to the modulated laser light beam by scanning, and (5) processing the silver halide photographic light-sensitive material having a silver halide emulsion layer by a roller transportation automatic processor, in which a photographic characteristic curve of said silver halide photographic light-sensitive material processed by said processor has a gamma value of a straight line connecting a density point of fog+0.5 and a density point of fog+2.5 of from 2.7 to 3.5 and a gamma value of a straight line connecting a density point of fog+0.05 and a density point of fog+0.5 of from 0.8 to 1.3.
    • 公开了一种用于形成放射线照相图像的方法。 该方法包括以下步骤:(1)通过平板检测器拍摄放射线照相图像,(2)从平板检测器读出放射线照相图像作为图像信号,(3)调制激光束的强度 图像信号,(4)通过扫描将卤化银照相感光材料曝光到调制的激光束;(5)通过辊式输送自动处理器处理具有卤化银乳剂层的卤化银照相感光材料, 其中由所述处理器处理的所述卤化银摄影感光材料的照相特征曲线具有连接雾的密度点+0.5和雾+ 2.5的密度点为2.7至3.5的直线的伽马值,以及 将雾密度点+ 0.05和灰雾密度点+ 0.5之间的连接点的直线的伽马值从0.8增加到1.3。