公开(公告)号：US08625742B2

公开(公告)日：2014-01-07

申请号：US13107360

申请日：2011-05-13

申请人： Atsushi Iwashita ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato

发明人： Atsushi Iwashita ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato

IPC分类号： H05G1/54

CPC分类号： A61B6/4266 ,  A61B6/4452 ,  A61B6/4464 ,  A61B6/487 ,  A61B6/547

摘要： An imaging system includes a plurality of imaging apparatuses, each of the imaging apparatuses includes a detector for performing an imaging operation for outputting image data corresponding to applied radiation or light and a controller for controlling the operation of the detector. The imaging apparatuses can independently perform an imaging operation and are movable in accordance with a relative positional relationship thereof. Sensing means obtain information indicative of the relative positional relationship between the imaging apparatuses. A control computer sends a control signal for determining operations of the imaging apparatuses to the controller. The control computer determines the operations of the imaging apparatuses by using the information obtained from the sensing means; and sets an appropriate scanning direction of each of the imaging apparatuses in accordance with the positional relationship thereof.

摘要翻译： 成像系统包括多个成像装置，每个成像装置包括用于执行用于输出与施加的辐射或光对应的图像数据的成像操作的检测器和用于控制检测器的操作的控制器。 成像装置可以独立地执行成像操作并且可以根据其相对位置关系来移动。 感测装置获得表示成像装置之间的相对位置关系的信息。 控制计算机向控制器发送用于确定成像装置的操作的控制信号。 控制计算机通过使用从感测装置获得的信息来确定成像装置的操作; 并且根据其位置关系设置每个成像装置的适当的扫描方向。

公开(公告)号：US08541754B2

公开(公告)日：2013-09-24

申请号：US13390592

申请日：2010-08-25

申请人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Masayoshi Akiyama ,  Tomoyuki Yagi ,  Keigo Yokoyama

发明人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Masayoshi Akiyama ,  Tomoyuki Yagi ,  Keigo Yokoyama

IPC分类号： G01T1/17

CPC分类号： G01T1/17

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120199749A1

公开(公告)日：2012-08-09

申请号：US13393396

申请日：2010-08-31

申请人： Toshio Kameshima ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato ,  Toshikazu Tamura

发明人： Toshio Kameshima ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato ,  Toshikazu Tamura

IPC分类号： G01T1/24 ,  G01T1/17 ,  H01L27/148

CPC分类号： H04N5/341 ,  A61B6/00 ,  A61B6/465 ,  G01T1/17 ,  H04N5/32

摘要： An imaging apparatus includes a control unit and a detector that includes multiple pixels and that performs an image capturing operation to output image data corresponding to radiation or light that is emitted. The image capturing operation includes a first image capturing operation in a first scanning area corresponding to part of the multiple pixels to output image data in the first scanning area and a second image capturing operation in a second scanning area larger than the first scanning area to output image data in the second scanning area. The control unit causes the detector to perform an accumulation operation in the second image capturing operation in a time determined so that an image artifact caused by the scanning area is lower than a predetermined allowable value on the basis of information about the amount of integration of accumulation times in the first image capturing operation.

摘要翻译： 成像装置包括控制单元和包括多个像素的检测器，并执行图像捕获操作以输出对应于所发射的辐射或光的图像数据。 图像拍摄操作包括在与多个像素的一部分相对应的第一扫描区域中的第一图像拍摄操作，以在第一扫描区域中输出图像数据，以及在大于第一扫描区域的第二扫描区域中进行第二图像拍摄操作，以输出 第二扫描区域中的图像数据。 控制单元使得检测器在第二图像拍摄操作中执行累积操作，该时间确定为使得由扫描区域引起的图像伪影基于关于累积量的积分量的信息而低于预定的允许值 次在第一次图像捕获操作。

公开(公告)号：US08222611B2

公开(公告)日：2012-07-17

申请号：US13163431

申请日：2011-06-17

申请人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama

IPC分类号： H01L27/46

CPC分类号： G01T1/2018 ,  H01L27/14676 ,  H04N5/32

摘要： To provide a radiation imaging apparatus capable of restraining the change of image qualities due to the change of sensitivities of an MIS-type photoelectric conversion element and its control method. Therefore, an MIS-type photoelectric conversion element 217 is set to a saturation state before performing radiation imaging. As means for realizing the above mentioned, a light source 601, power supply 603 for making the light source 601 emit light, and switch 605 are provided. The light source 601 can use a light source capable of discharging the light having a wavelength which can be detected by a photoelectric conversion layer 209 at optional timing. For example, it is possible to use a light source in which a plurality of LEDs or cold cathode ray tubes are arranged, a light guide plate is combined with an LED or cold cathode ray tube, or an EL device.

摘要翻译： 提供能够抑制由于MIS型光电转换元件的灵敏度变化引起的图像质量变化的放射线摄像装置及其控制方法。 因此，在进行放射线成像之前，将MIS型光电转换元件217设定为饱和状态。 作为实现上述的手段，设置有用于使光源601发光的光源601，电源603以及开关605。 光源601可以使用能够以可选择的时刻放电具有可由光电转换层209检测的波长的光的光源。 例如，可以使用其中布置有多个LED或冷阴极射线管的光源，导光板与LED或冷阴极射线管或EL器件组合。

公开(公告)号：US20110317054A1

公开(公告)日：2011-12-29

申请号：US13255830

申请日：2010-03-12

申请人： Toshio Kameshima ,  Tadao Endo ,  Masayoshi Akiyama ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato ,  Toshikazu Tamura

发明人： Toshio Kameshima ,  Tadao Endo ,  Masayoshi Akiyama ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato ,  Toshikazu Tamura

IPC分类号： H04N5/335

CPC分类号： A61B6/032 ,  A61B6/4233 ,  A61B6/585 ,  G01T1/2928 ,  H04N5/32 ,  H04N5/3597 ,  H04N5/374

摘要： An imaging apparatus 100 includes a detector 104 having a plurality of pixels arranged in a matrix and performing an imaging operation of outputting image data according to the radiation or light emitted in a predetermined irradiation field; and a controller unit 106, and performs a first imaging operation for outputting image data according to the radiation in a narrower irradiation field A corresponding to part of pixels and a second imaging operation for outputting image data according to the radiation in a wider irradiation field B, under controlling the detector to perform an accumulation operation during the second imaging operation so that a step of image is a preliminarily set tolerable quantity.

摘要翻译： 成像设备100包括具有排列成矩阵的多个像素的检测器104，并且执行根据在预定照射场中发射的辐射或光输出图像数据的成像操作; 以及控制器单元106，并且执行用于根据与像素的一部分相对应的较窄照射场A中的辐射输出图像数据的第一成像操作和用于根据较宽辐射场B中的辐射输出图像数据的第二成像操作 在控制检测器的同时在第二次成像操作期间执行累积操作，使得图像的步骤是预先设定的可容许量。

公开(公告)号：US20110286582A1

公开(公告)日：2011-11-24

申请号：US13107360

申请日：2011-05-13

申请人： Atsushi Iwashita ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato

发明人： Atsushi Iwashita ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato

IPC分类号： G21K5/10

CPC分类号： A61B6/4266 ,  A61B6/4452 ,  A61B6/4464 ,  A61B6/487 ,  A61B6/547

摘要： An imaging system includes a plurality of imaging apparatuses, each of the imaging apparatuses includes a detector for performing an imaging operation for outputting image data corresponding to applied radiation or light and a controller for controlling the operation of the detector. The imaging apparatuses can independently perform an imaging operation and are movable in accordance with a relative positional relationship thereof. Sensing means obtain information indicative of the relative positional relationship between the imaging apparatuses. A control computer sends a control signal for determining operations of the imaging apparatuses to the controller. The control computer determines the operations of the imaging apparatuses by using the information obtained from the sensing means; and sets an appropriate scanning direction of each of the imaging apparatuses in accordance with the positional relationship thereof.

摘要翻译： 成像系统包括多个成像装置，每个成像装置包括用于执行用于输出与施加的辐射或光对应的图像数据的成像操作的检测器和用于控制检测器的操作的控制器。 成像装置可以独立地执行成像操作并且可以根据其相对位置关系来移动。 感测装置获得表示成像装置之间的相对位置关系的信息。 控制计算机向控制器发送用于确定成像装置的操作的控制信号。 控制计算机通过使用从感测装置获得的信息来确定成像装置的操作; 并且根据其位置关系设置每个成像装置的适当的扫描方向。

公开(公告)号：US07965817B2

公开(公告)日：2011-06-21

申请号：US12940234

申请日：2010-11-05

申请人： Toshio Kameshima ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Toshio Kameshima ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

IPC分类号： H05G1/64 ,  H01L27/146

CPC分类号： H04N5/32 ,  A61B6/4233 ,  A61B6/563 ,  H01L27/14676 ,  H04N5/321 ,  H04N5/347 ,  H04N5/374 ,  H04N5/378

摘要： A radiation imaging apparatus comprises a first driving circuit unit to drive a first switching element connected to a conversion element, wherein the conversion element converting radiation into charges, a second driving circuit unit to drive a second switching element connected to the conversion element, and a control unit to control the first driving circuit and the second driving circuit independently at different timing.

摘要翻译： 辐射摄像装置包括第一驱动电路单元，用于驱动连接到转换元件的第一开关元件，其中所述转换元件将辐射转换成电荷，第二驱动电路单元驱动连接到所述转换元件的第二开关元件，以及 控制单元在不同的定时独立地控制第一驱动电路和第二驱动电路。

公开(公告)号：US07915589B2

公开(公告)日：2011-03-29

申请号：US12050220

申请日：2008-03-18

申请人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

发明人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

IPC分类号： G01T1/00 ,  H01L27/146

CPC分类号： H04N5/217 ,  H04N5/32 ,  H04N5/361

摘要： An idling time period after applying a bias to a conversion element until a start of an accumulation of the conversion element for deriving an image and an accumulation period from the start of the accumulation to a termination of the accumulation are measured. An offset correction of the image is conducted by using a dark current accumulation charge quantity in the accumulation calculated based on the measured idling time period and accumulation period and stored dark current response characteristics. Thus, even just after applying the bias to the conversion element, the offset correction can be properly conducted. An imaging apparatus which can execute a good radiographing without increasing costs and a size even just after applying the bias to the conversion element is provided.

摘要翻译： 测量向转换元件施加偏压直到用于导出图像的转换元件的累积开始和从累积开始到累积结束的累积期间之间的空转时间周期。 通过使用基于测量的空闲时间周期和累加时间计算的累积中的暗电流累积电荷量和存储的暗电流响应特性来进行图像的偏移校正。 因此，即使在将偏置应用于转换元件之后，也可以适当地进行偏移校正。 提供了即使在将偏压应用于转换元件之后，也可以在不增加成本和尺寸的情况下执行良好的放射照相的成像装置。

公开(公告)号：US07850367B2

公开(公告)日：2010-12-14

申请号：US12328302

申请日：2008-12-04

申请人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

发明人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

IPC分类号： G01D18/00 ,  H05G1/58

CPC分类号： G01N23/04

摘要： When a gain correction is performed for the radiographed object image, the acquisition of the object image having a high grade quality and no artifact is realized. For that purpose, an image storing unit is provided for storing an image for correction radiographed based on conditions set with the table in a state in which no object exists to each operation modes of the plurality of operation modes; and an image processing unit is provided for performing a gain correction processing of the radiographed object image and performs the gain correction processing of the radiographed object image obtained based on the conditions set in the table of the operation mode selected by the selecting unit in a state in which the object exists using a corresponding image for correction extracted from the image storage unit based on the operation mode selected by the selecting unit.

摘要翻译： 当对于拍摄对象图像执行增益校正时，实现具有高等级质量并且不产生伪影的对象图像的获取。 为此目的，提供一种图像存储单元，用于根据在多个操作模式的每个操作模式中不存在对象的状态，基于用该表设置的条件来存储用于校正的校正图像; 并且提供图像处理单元，用于执行所拍摄的对象图像的增益校正处理，并且执行基于在状态中由选择单元选择的操作模式的表中设置的条件获得的拍摄对象图像的增益校正处理 基于由选择单元选择的操作模式，使用从图像存储单元提取的用于校正的对应图像存在对象。

公开(公告)号：US20100149324A1

公开(公告)日：2010-06-17

申请号：US12633728

申请日：2009-12-08

申请人： Keigo Yokoyama ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka

发明人： Keigo Yokoyama ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka

IPC分类号： H04N7/18

CPC分类号： H04N5/32 ,  H03M1/1019 ,  H03M1/1225 ,  H04N5/378

摘要： An apparatus includes a detector including a plurality of pixels which converts radiation or light into analog electric signals, a signal processor including a reading circuit which reads an analog electric signal output from the detector and an A/D convertor which converts the analog electric signal into a digital signal, a power-supply unit configured to apply bias to the detector and the signal processor. The apparatus further includes a controller configured to control at least one of the signal processor and the power-supply unit in accordance with information on an A/D conversion characteristic of the A/D convertor and information on an input analog electric signal to be input to the A/D convertor.

摘要翻译： 一种装置包括：检测器，包括将辐射或光转换成模拟电信号的多个像素;信号处理器，包括读取电路，读取从检测器输出的模拟电信号;以及A / D转换器，其将模拟电信号转换成 数字信号，被配置为向检测器和信号处理器施加偏压的电源单元。 该装置还包括控制器，被配置为根据关于A​​ / D转换器的A / D转换特性的信息和关于要输入的输入模拟电信号的信息来控制信号处理器和电源单元中的至少一个 到A / D转换器。