公开(公告)号：US20120127353A1

公开(公告)日：2012-05-24

申请号：US13296468

申请日：2011-11-15

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

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

IPC分类号： H04N5/335

CPC分类号： G01T1/17 ,  G01T1/208 ,  H04N5/32 ,  H04N5/3591 ,  H04N5/374

摘要： An image-pickup apparatus including a detector comprising a detecting unit and a reading circuit, the detecting unit including pixels, each of which including a conversion element, the reading circuit which includes a connecting unit that is electrically connected to a signal wire transferring an electric signal and that electrically connects the signal wire to a node, and which performs a reading operation to output the electric signal from the pixel. A control unit controls an operation of the reading circuit, and a sensing unit senses the end of radiation irradiation based on an output of the reading circuit, which is acquired during the period of an accumulation operation of the detector. The control unit starts establishing the electrical connection between the signal wire and the node through the connecting unit based on the sensed irradiation end, and retains the electrical connection until the start of the reading operation.

摘要翻译： 一种包括检测器的摄像装置，包括检测单元和读取电路，所述检测单元包括像素，每个像素包括转换元件，所述读取电路包括电连接到传输电的信号线的连接单元 并且将信号线电连接到节点，并且执行读取操作以从像素输出电信号。 控制单元控制读取电路的操作，并且感测单元基于在检测器的累积操作期间获取的读取电路的输出来感测辐射照射的结束。 控制单元基于感测的照射端开始通过连接单元建立信号线和节点之间的电连接，并保持电连接直到读取操作开始。

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。

公开(公告)号：US07732776B2

公开(公告)日：2010-06-08

申请号：US12247491

申请日：2008-10-08

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： G01T1/20

CPC分类号： H04N5/32 ,  H01L27/14663 ,  H04N5/361 ,  H04N5/365

摘要： Provided is a radiation imaging apparatus including: a conversion unit including a plurality of pixels arranged two-dimensionally, wherein each of the pixels includes a conversion element for converting incident radiation into an electric charge and a switching element for transferring an electric signal based on the electric charge; a drive circuit unit for outputting, to the switching element, a drive signal having a voltage for turning on the switching element; a read-out circuit unit for reading out the electric signal from the pixel; a calculating unit for calculating the S/N ratio of the electric signal read out by the read-out circuit unit; and a determination unit capable of changing the voltage of the drive signal output from the drive circuit unit according to the S/N ratio calculated. As a result, the radiation imaging apparatus capable of improving the S/N ratio of the derived image is provided.

摘要翻译： 本发明提供一种放射线摄像装置，其特征在于包括：转换单元，包括二维排列的多个像素，其中每个像素包括用于将入射辐射转换为电荷的转换元件和用于基于 电荷; 驱动电路单元，向所述开关元件输出具有用于接通所述开关元件的电压的驱动信号; 读出电路单元，用于从像素读出电信号; 计算单元，用于计算由读​​出电路单元读出的电信号的S / N比; 以及确定单元，其能够根据所计算的S / N比来改变从驱动电路单元输出的驱动信号的电压。 结果，提供了能够提高导出图像的S / N比的放射线摄像装置。

公开(公告)号：US07724874B2

公开(公告)日：2010-05-25

申请号：US11773686

申请日：2007-07-05

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

CPC分类号： G01T1/2018

摘要： A memory stores first image data for offset correction generated by performing an interlace scanning of the driving lines of odd rows only in a driving circuit unit. A memory stores second image data for offset correction generated by performing the interlace scanning of the driving lines of even rows only in the driving circuit unit. A processing unit synthesizes the first image data for offset correction and the second image data for offset correction, thereby to generate image data for offset correction of one frame portion, and an arithmetic operation unit performs an arithmetic operation processing on the radiation image data by using the image data for offset correction of one frame portion synthesized and generated, thereby to perform the offset correction of the radiation image data.

摘要翻译： 存储器存储用于仅在驱动电路单元中执行奇数行的驱动线的隔行扫描而产生的用于偏移校正的第一图像数据。 存储器存储用于通过仅在驱动电路单元中执行偶数行的驱动线的隔行扫描而产生的用于偏移校正的第二图像数据。 处理单元合成用于偏移校正的第一图像数据和用于偏移校正的第二图像数据，从而生成用于一帧部分的偏移校正的图像数据，并且算术运算单元通过使用对放射线图像数据进行算术运算处理 用于对合成和产生的一个帧部分的偏移校正的图像数据，从而执行放射线图像数据的偏移校正。

公开(公告)号：US07718973B2

公开(公告)日：2010-05-18

申请号：US11683145

申请日：2007-03-07

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

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

IPC分类号： G01T1/24

CPC分类号： G01T1/247 ,  G01T7/005 ,  H04N5/32 ,  H04N5/3658 ,  H04N5/374

摘要： A radiation imaging apparatus comprises a read unit reading electric signals from radiation detecting elements that are arranged two-dimensionally and that convert incident radiation into electric signals. A control unit controls the radiation detecting unit such that a first radiation detecting element is switched into a state in which charge generated therein cannot be taken out (a “senseless state”) and a second radiation detecting element is switched into a state in which it charge generated therein by incident radiation can be taken out (a “sensible state”), and a signal processing unit performs a subtraction processing such that the electric signal from the radiation detecting element that is in the senseless state is subtracted from the electric signal from the radiation detecting element that is in the sensible state, to reduce conspicuous line noise in an image by means of a relatively simple configuration.

摘要翻译： 放射线成像装置包括从二维布置的放射线检测元件读取电信号并将入射的辐射转换为电信号的读取单元。 控制单元控制辐射检测单元，使得第一辐射检测元件切换到其中产生的电荷不能被取出的状态（“无感觉状态”），并且第二辐射检测元件切换到其中的状态 可以取出通过入射辐射产生的电荷（“敏感状态”），并且信号处理单元进行减法处理，使得来自处于无感觉状态的放射线检测元件的电信号从来自 处于敏感状态的放射线检测元件通过相对简单的结构来减少图像中的显着线噪声。