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1. 发明申请

US20120305792A1 RADIOGRAPHIC IMAGE DETECTOR AND CONTROL METHOD THEREFOR 有权
标题翻译： RADIOGRAPHIC图像检测器及其控制方法
公开(公告)号：US20120305792A1
公开(公告)日：2012-12-06
申请号：US13480157
申请日：2012-05-24
申请人： Takeshi KUWABARA , Keita WATANABE , Jun ENOMOTO , Yasufumi ODA , Takeshi KOISHI
发明人： Takeshi KUWABARA , Keita WATANABE , Jun ENOMOTO , Yasufumi ODA , Takeshi KOISHI
IPC分类号： G01T1/17
CPC分类号： G01T1/243 , G01T1/17 , G01T1/2018 , H04N5/32
摘要： An x-ray image detector monitors the intensity of incident x-rays to detect an end of radiation from an x-ray source when the x-ray intensity decreases to a threshold level or less. The x-ray intensity gets down to zero with a variable time lag from the start of decreasing, called radiation wave tail. Depending on the gradient of declivity in time curve of the decreasing x-ray intensity, calculated at the time when the end of radiation is detected, the x-ray image detector decides a delay time from the end-of-radiation detection time to a reading start time to start reading signal charges from the image detector. Thus, the reading start time may be adjusted to the point when the x-ray intensity gets down to zero, which will improve S/N ratio and prevent shading artifacts.
摘要翻译：当X射线强度降低到阈值水平或更低时，X射线图像检测器监测入射的X射线的强度以检测来自X射线源的辐射的结束。 X射线强度从减小开始的可变时间滞后变为零，称为辐射波尾。根据在检测到辐射结束时计算出的x射线强度减小的时间曲线下的倾斜度的梯度，X射线图像检测器决定从放射检测结束时间到延迟时间的延迟时间读取开始时间开始从图像检测器读取信号电荷。因此，可以将读取开始时间调整为当x射线强度降至零时的点，这将提高S / N比并防止遮蔽伪像。

2. 发明申请

US20120305791A1 RADIOGRAPHIC IMAGE DETECTOR AND CONTROL METHOD THEREFOR 有权
标题翻译： RADIOGRAPHIC图像检测器及其控制方法
公开(公告)号：US20120305791A1
公开(公告)日：2012-12-06
申请号：US13480136
申请日：2012-05-24
申请人： Keita WATANABE , Takeshi KUWABARA , Yasufumi ODA , Jun ENOMOTO , Takeshi KOISHI
发明人： Keita WATANABE , Takeshi KUWABARA , Yasufumi ODA , Jun ENOMOTO , Takeshi KOISHI
IPC分类号： G01T1/16
CPC分类号： G01T1/247 , G01T1/208 , G01T1/24 , H04N5/32
摘要： 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.
摘要翻译：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。

3. 发明申请

US20130075619A1 RADIOLOGICAL IMAGE DETECTION APPARATUS 有权
标题翻译：放射图像检测装置
公开(公告)号：US20130075619A1
公开(公告)日：2013-03-28
申请号：US13570911
申请日：2012-08-09
申请人： Makoto SUGIZAKI , Takeshi KUWABARA , Yasufumi ODA
发明人： Makoto SUGIZAKI , Takeshi KUWABARA , Yasufumi ODA
IPC分类号： G01T1/16
CPC分类号： H04N5/361 , H04N5/32
摘要： 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.
摘要翻译：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。

4. 发明申请

US20130058453A1 RADIOGRAPHY SYSTEM AND RADIATION SOURCE CONTROLLER 有权
标题翻译：放射源系统和辐射源控制器
公开(公告)号：US20130058453A1
公开(公告)日：2013-03-07
申请号：US13561919
申请日：2012-07-30
申请人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA , Takashi TAJIMA
发明人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA , Takashi TAJIMA
IPC分类号： H05G1/44 , G01N23/04
CPC分类号： A61B6/542 , H04N5/2351 , H04N5/32 , H05G1/44
摘要： A source controller unit for controlling an x-ray source is provided with a detection signal interface for receiving detection signals from detective pixels of an electronic cassette or an integrated value of the detection signals only, or an interface for receiving a radiation stopping signal only. The source controller unit receives other radiation signals than the radiation stopping signal, such as a radiation admitting signal, through a radiation signal interface. The source controller unit uses the detection signals, the integrated value thereof, or the radiation stopping signal as exposure control signals for stopping radiation from the x-ray source. Since the exposure control signals are received on the specific interface therefor, the source controller unit does not need signal sorting operation nor receive different kinds of signals at the same time, improving the speed of radiation stopping procedure.
摘要翻译：用于控制X射线源的源控制器单元设置有用于接收来自电子盒的检测像素的检测信号或仅检测信号的积分值的检测信号接口，或仅用于接收辐射停止信号的接口。源极控制器单元通过辐射信号接口接收比放射线停止信号（例如辐射允许信号）的其它辐射信号。源控制器单元使用检测信号，其积分值或辐射停止信号作为用于停止来自x射线源的辐射的曝光控制信号。由于在特定接口上接收到曝光控制信号，源控制器单元不需要信号分类操作，也不会同时接收不同种类的信号，从而提高了辐射停止过程的速度。

5. 发明申请

US20130058457A1 RADIOGRAPHIC SYSTEM, AUTOMATIC EXPOSURE CONTROL METHOD OF RADIOGRAPHIC SYSTEM, AND RADIOLOGICAL IMAGE DETECTOR 有权
标题翻译：放射学系统，自动曝光控制方法和放射图像检测器
公开(公告)号：US20130058457A1
公开(公告)日：2013-03-07
申请号：US13603099
申请日：2012-09-04
申请人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA
发明人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA
IPC分类号： H05G1/44 , G01N23/04
CPC分类号： A61B6/542 , A61B6/4233 , A61B6/4494 , A61B6/548
摘要： A storage and search unit of a console acquires a source ID of an X-ray source and searches for and extracts a type corresponding to the acquired source ID from source information of a storage device. In the case of an installation convenience preference type in which convenience in connection between a source controller and an electronic cassette is preferred, a detection signal from a detection pixel of an FPD of the electronic cassette is output from a detection signal I/F of the electronic cassette to a detection signal I/F of the source controller. In the case of an installation convenience non-preference type, an irradiation stop signal based on the comparison result of the integrated value of the detection signal from the detection pixel with an irradiation-stop threshold is output from an irradiation signal I/F of the electronic cassette to an irradiation signal I/F of the source controller.
摘要翻译：控制台的存储和搜索单元获取X射线源的源ID，并从存储设备的源信息中搜索并提取与获取的源ID相对应的类型。在优选类似于源控制器和电子盒之间的连接方便的安装方式优先选择的情况下，来自电子盒的FPD的检测像素的检测信号从该电子盒的检测信号I / F输出电子盒带到源控制器的检测信号I / F。在安装方便非偏好型的情况下，基于来自具有照射停止阈值的检测像素的检测信号的积分值的比较结果的照射停止信号从照相停止阈值的照射信号I / F输出电子盒带到源控制器的照射信号I / F。

6. 发明申请

US20110211672A1 RADIOGRAPHIC IMAGE ACQUIRING APPARATUS, RADIOGRAPHIC IMAGE CAPTURING SYSTEM, AND RADIOGRAPHIC IMAGE CAPTURING METHOD 有权
标题翻译：放射影像获取装置，放射影像捕获系统和放射图像捕获方法
公开(公告)号：US20110211672A1
公开(公告)日：2011-09-01
申请号：US13017605
申请日：2011-01-31
申请人： Takeshi KUWABARA
发明人： Takeshi KUWABARA
IPC分类号： G01N23/04
CPC分类号： A61B6/00 , A61B6/4233 , A61B6/4494 , A61B6/563 , A61B2560/0456 , G03B42/02 , G06F19/00 , G06F19/321 , H04N5/32
摘要： In a radiographic image acquiring apparatus, in the event that one radiation detection device is selected from among a plurality of radiation detection devices, each of which are capable of converting radiation into a radiographic image, the radiographic image acquiring apparatus includes an acquisition unit for acquiring all of the radiographic images from the plurality of radiation detection devices, including the radiographic image from the one radiation detection device, at a time when application of radiation with respect to a subject is carried out.
摘要翻译：在放射线照相图像获取装置中，在从能够将辐射转换为放射线照相图像的多个放射线检测装置中选择一个放射线检测装置的情况下，放射线照相图像获取装置包括：获取部，包括来自一个放射线检测装置的射线照相图像的多个放射线照相图像在对被摄体进行辐射的时刻进行。

7. 发明申请

US20120241629A1 RADIOGRAPHIC IMAGE CAPTURING SYSTEM, PROGRAM STORAGE MEDIUM, AND METHOD 有权
标题翻译：放射性图像捕获系统，程序存储介质和方法
公开(公告)号：US20120241629A1
公开(公告)日：2012-09-27
申请号：US13427136
申请日：2012-03-22
申请人： Takeshi KUWABARA
发明人： Takeshi KUWABARA
IPC分类号： G01T1/24 , G01T1/20
CPC分类号： A61B6/4283 , A61B6/4233 , A61B6/4291 , A61B6/4423 , A61B6/548
摘要： A radiographic image capturing system includes a radiographic image capturing device, a grid, an acquiring unit, and a processor. The radiographic image capturing device includes a radiation detector in which pixels having a sensitivity with respect to radiation or light are disposed two-dimensionally at a predetermined pixel spacing. The grid is placed on a radiation source side of the radiation detector, and includes radiation absorbing members that are disposed at a predetermined spacing. The acquiring unit acquires an inclination angle of the grid, with respect to an array direction of the pixels, with which a spatial frequency of moiré fringes generated by the absorbing members in a captured radiographic image will be equal to or greater than a predetermined spatial frequency. The processor executes predetermined processing for making a relative angle between the grid and the radiation detector the acquired inclination angle.
摘要翻译：射线照相图像拍摄系统包括放射线照相图像捕获装置，网格，获取单元和处理器。射线照相图像拍摄装置包括辐射检测器，其中具有相对于辐射或光的灵敏度的像素以预定的像素间隔二维地设置。栅格放置在辐射检测器的辐射源侧，并且包括以预定间隔设置的辐射吸收构件。获取单元获取相对于像素的排列方向的网格的倾斜角度，在捕获的放射线照相图像中由吸收构件产生的莫尔条纹的空间频率将等于或大于预定的空间频率。处理器执行用于使格栅和辐射检测器之间的相对角度获得的所述倾斜角度的预定处理。

8. 发明申请

US20120132821A1 RADIATION IMAGE DETECTING DEVICE AND CONTROL METHOD THEREOF 有权
标题翻译：辐射图像检测装置及其控制方法
公开(公告)号：US20120132821A1
公开(公告)日：2012-05-31
申请号：US13304089
申请日：2011-11-23
申请人： Takeshi KUWABARA
发明人： Takeshi KUWABARA
IPC分类号： G01T1/24
CPC分类号： G01T1/2018 , G01T1/247 , H04N5/32
摘要： When all TFTs are turned on, an electric signal is compared with a first threshold value. If the electric signal is equal to or more than the first threshold value, a first judgment unit judges that X-ray irradiation has been started. A second judgment unit compares second and third threshold values with a first-order differentiation value of an electric signal that is outputted in a state of turning off all the TFTs. If the first-order differentiation value is within or out of a range defined by the second and third threshold values throughout a verification period, the second judgment unit verifies that the judgment of the first judgment unit is correct. When the judgment of the first judgment unit is verified to be correct, the TFTs are kept turned off, and an FPD continuously carries out charge accumulation operation for capturing an X-ray image.
摘要翻译：当所有TFT都导通时，将电信号与第一阈值进行比较。如果电信号等于或大于第一阈值，则第一判断单元判断X射线照射已经开始。第二判断单元将第二和第三阈值与在关闭所有TFT的状态下输出的电信号的一阶微分值进行比较。如果一阶微分值在整个验证周期内在由第二和第三阈值限定的范围内或之外，则第二判断单元验证第一判断单元的判断是否正确。当第一判断单元的判断被验证为正确时，TFT保持关闭，并且FPD连续执行用于捕获X射线图像的电荷累积操作。

9. 发明申请

US20130058456A1 RADIOGRAPHING SYSTEM, METHOD OF CONTROLLING AUTOMATIC EXPOSURE IN RADIOGRAPHING SYSTEM, AND RADIOLOGICAL IMAGE DETECTION DEVICE 有权
标题翻译：放射学系统，放射自动曝光系统中的自动曝光控制方法和放射图像检测装置
公开(公告)号：US20130058456A1
公开(公告)日：2013-03-07
申请号：US13603091
申请日：2012-09-04
申请人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA
发明人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA
IPC分类号： H05G1/38 , A61B6/00
CPC分类号： A61B6/4233 , A61B6/4283 , A61B6/4405 , A61B6/542 , A61B6/548 , A61B6/587
摘要： A comparison circuit 78 of an AEC unit 67 of an electronic cassette 13 compares the accumulated value of a detection signal from a detection pixel 65 of the electronic cassette 13 with an irradiation prohibition threshold value on the electronic cassette 13. When the accumulated value of the detection signal reaches the irradiation prohibition threshold value on the electronic cassette 13, a detection signal having the same voltage value as the irradiation prohibition threshold value of the radiographing condition on the source control device 11 paired with the radiographing condition on the electronic cassette 13 is output from a detection signal I/F 80 of the electronic cassette 13 toward a detection signal I/F 26 of the source control device 11.
摘要翻译：电子盒13的AEC单元67的比较电路78将来自电子盒13的检测像素65的检测信号的累计值与电子盒13上的照射禁止阈值进行比较。当累积的检测信号达到电子盒13上的照射禁止阈值，输出具有与源电子盒13上的放射照相条件配对的源控制装置11上的放射线条件的照射禁止阈值相同的电压值的检测信号从电子盒13的检测信号I / F 80朝向源极控制装置11的检测信号I / F26。

10. 发明申请

US20130058455A1 RADIOGRAPHING SYSTEM, METHOD OF CONTROLLING AUTOMATIC EXPOSURE IN RADIOGRAPHING SYSTEM, AND RADIOLOGICAL IMAGE DETECTION DEVICE 有权
标题翻译：放射学系统，放射自动曝光系统中的自动曝光控制方法和放射图像检测装置
公开(公告)号：US20130058455A1
公开(公告)日：2013-03-07
申请号：US13603075
申请日：2012-09-04
申请人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA
发明人： Takeshi KUWABARA , Takeshi KAMIYA , Yusuke KITAGAWA
IPC分类号： H05G1/38 , A61B6/00
CPC分类号： A61B6/585 , A61B6/4233 , A61B6/4283 , A61B6/4291 , A61B6/542 , A61B6/545 , A61B6/547 , A61B6/548
摘要： A compensation circuit 76 of an AEC unit 67 of an electronic cassette 13 defines the detection signal of a detection pixel 65 of the electronic cassette 13 as a detection signal corresponding to the detection signal of an old AEC sensor 25. The compensation circuit 76 performs compensation so as to exclude the influence on the detection signal due to a difference in the configuration of an intermediate member disposed between an X-ray source 10 and an FPD 35 of the electronic cassette 13 when the detection pixel 65 is used as an AEC sensor instead of the old AEC sensor 25. The detection signal is transmitted from a detection signal I/F 80 to a detection signal I/F 26 of a source control device 11 as it is (instantaneous value) or as an accumulated value obtained using an integration circuit 77.
摘要翻译：电子盒13的AEC单元67的补偿电路76将电子盒13的检测像素65的检测信号定义为对应于旧AEC传感器25的检测信号的检测信号。补偿电路76执行补偿以便当检测像素65用作AEC传感器时，排除由于设置在电子盒13的X射线源10和FPD 35之间的中间构件的构型的差异而对检测信号的影响检测信号从原始控制装置11的检测信号I / F 80发送到原始控制装置11的检测信号I / F 26（瞬时值），或作为使用积分获得的累积值电路77。

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