公开(公告)号：US07476027B2

公开(公告)日：2009-01-13

申请号：US11751686

申请日：2007-05-22

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：US20080217548A1

公开(公告)日：2008-09-11

申请号：US12038346

申请日：2008-02-27

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： G01T1/24

CPC分类号： H04N5/3658 ,  H01L27/14663 ,  H04N5/32 ,  H04N5/378

摘要： An imaging apparatus capable of reducing a line noise artifact in a simple configuration without complicated operations includes: a plurality of pixels arranged in row and column directions and having a photoelectric conversion element and a switch element; a plurality of signal wirings connected to the plurality of switch elements in the column direction; a read-out circuit connected to the plurality of signal wirings; and a power source for supplying a voltage to the photoelectric conversion element. With the configuration, the plurality of pixels are classified into a plurality of groups, and the power sources are independently provided for each of the plurality of groups.

摘要翻译： 能够以简单的结构减少线路噪声伪影而不需要复杂的操作的成像设备包括：排列成行和列方向并具有光电转换元件和开关元件的多个像素; 在列方向上连接到多个开关元件的多个信号布线; 连接到所述多个信号布线的读出电路; 以及用于向光电转换元件提供电压的电源。 利用该配置，将多个像素分成多个组，并且为多个组中的每一个独立地提供电源。

公开(公告)号：US07421063B2

公开(公告)日：2008-09-02

申请号：US11755371

申请日：2007-05-30

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： H05G1/58

CPC分类号： G01T1/244 ,  H04N5/32 ,  H04N5/3698 ,  H04N5/374 ,  H04N5/378

摘要： A radiation imaging apparatus is capable of taking a moving picture by acquisition by a reading circuit of a plurality of radiation image signals on the basis of a plurality of successive times of irradiation of a radiation detector with radiation rays. The radiation detector has a two-dimensional array of pixels. In a period between a start of an n-th time of irradiation with radiation rays and a start of an (n+1)-th time of irradiation with radiation rays, where n is a natural number, a controller switches an operation status of an analog-to-digital converter that converts electric signals read by the reading circuit into digital signals so that power consumption of the analog-to-digital converter is reduced.

摘要翻译： 辐射成像装置能够通过基于放射线检测器的多次连续照射时间的多个辐射图像信号的读取电路进行拍摄来拍摄运动图像。 辐射检测器具有二维像素阵列。 在用放射线照射的第n次开始与第n + 1次放射线照射开始之间的期间，其中n是自然数，控制器切换操作状态 将由读取电路读取的电信号转换成数字信号的模拟 - 数字转换器，从而降低模数转换器的功耗。

公开(公告)号：US20080011958A1

公开(公告)日：2008-01-17

申请号：US11692534

申请日：2007-03-28

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： A61B6/4488 ,  A61B6/4405 ,  A61B6/4441 ,  A61B6/548 ,  H04N5/32 ,  H04N5/3698

摘要： To provide a radiation imaging apparatus which is capable of both connecting state radiographing for radiographing with a C arm connected and non-connecting state radiographing for radiographing with the C arm disconnected, and is convenient and obtains high quality images, the apparatus includes: a flat panel detector; a holding unit for holding at least the flat panel detector;and a control unit for controlling the flat panel detector. With the configuration, the flat panel detector can be connected to and disconnected from the holding unit; connecting state radiographing can be performed with the flat panel detector connected to the holding unit, and non-connecting state radiographing can be performed with the flat panel detector disconnected from the holding unit; the control unit controls the flat panel detector such that a heat generation quantity of the flat panel detector during the non-connecting state radiographing can be lower than a heat generation quantity of the flat panel detector during the connecting state radiographing.

摘要翻译： 为了提供一种辐射成像装置，其能够将用于X射线照相的状态X射线照相用C臂连接和非连接状态X射线照相用于用C摄影机断开的X射线照相，并且便于获得高质量图像，该装置包括： 面板检测器 用于至少保持平板检测器的保持单元;以及用于控制平板检测器的控制单元。 通过该配置，平板检测器可以连接到保持单元并从保持单元断开; 可以在与保持单元连接的平板检测器进行连接状态放射照像，并且可以在平板检测器与保持单元断开的情况下进行非连接状态的X线照相; 控制单元控制平板检测器，使得在连接状态放射照像期间平板检测器的发热量可以低于连接状态放射照相期间的平板检测器的发热量。

公开(公告)号：US20070290143A1

公开(公告)日：2007-12-20

申请号：US11696781

申请日：2007-04-05

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： G01T1/24

CPC分类号： H04N5/3658 ,  H01L27/14663 ,  H04N5/32 ,  H04N5/378

摘要： An imaging apparatus capable of reducing a line noise artifact in a simple configuration without complicated operations includes: a plurality of pixels arranged in row and column directions and having a photoelectric conversion element and a switch element; a plurality of signal wirings connected to the plurality of switch elements in the column direction; a read out circuit connected to the plurality of signal wirings; and a power source for supplying a voltage to the photoelectric conversion element. With the configuration, the plurality of pixels are classified into a plurality of groups, and the power sources are independently provided for each of the plurality of groups.

摘要翻译： 能够以简单的结构减少线路噪声伪影而不需要复杂的操作的成像设备包括：排列成行和列方向并具有光电转换元件和开关元件的多个像素; 在列方向上连接到多个开关元件的多个信号布线; 连接到所述多个信号布线的读出电路; 以及用于向光电转换元件提供电压的电源。 利用该配置，将多个像素分成多个组，并且为多个组中的每一个独立地提供电源。

公开(公告)号：US08928779B2

公开(公告)日：2015-01-06

申请号：US12824082

申请日：2010-06-25

申请人： Katsuro Takenaka ,  Daisuke Yoshida ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama ,  Sho Sato

发明人： Katsuro Takenaka ,  Daisuke Yoshida ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama ,  Sho Sato

IPC分类号： H04N5/217 ,  H04N5/335 ,  H04N5/378

CPC分类号： H04N5/335 ,  H04N5/378

摘要： An image pickup apparatus includes a detection unit in which a matrix of pixels converts radiation or light into analog electrical signals, a reading circuit configured to perform signal processing operation by reading the analog electric signals on a row-by-row basis, an A/D converter configured to convert a pixel signal output from the reading circuit into pixel data, and a correction processing unit configured to correct the pixel data. A control unit performs control processing so that the reading circuit outputs reset signals to the A/D converter in a period in which the signal processing operation of a predetermined row is performed, the A/D converter converts the reset signals into pieces of reset data in the period, and the correction processing unit averages the pieces of reset data output from the A/D converter and performs subtraction with the averaged reset data and the pixel data output from the A/D converter.

摘要翻译： 一种图像拾取装置，包括：检测单元，其中像素矩阵将辐射或光转换为模拟电信号;读取电路，被配置为通过逐行读取模拟电信号来执行信号处理操作; A / D转换器，被配置为将从读取电路输出的像素信号转换为像素数据;以及校正处理单元，被配置为校正像素数据。 控制单元执行控制处理，使得读取电路在执行预定行的信号处理操作的时段中将复位信号输出到A / D转换器，A / D转换器将复位信号转换成多个复位数据 并且校正处理单元对从A / D转换器输出的复位数据进行平均，并且利用平均的复位数据和从A / D转换器输出的像素数据进行减法。

公开(公告)号：US20100327176A1

公开(公告)日：2010-12-30

申请号：US12824082

申请日：2010-06-25

申请人： Katsuro Takenaka ,  Daisuke Yoshida ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama ,  Sho Sato

发明人： Katsuro Takenaka ,  Daisuke Yoshida ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama ,  Sho Sato

IPC分类号： G01T1/17

CPC分类号： H04N5/335 ,  H04N5/378

摘要： An image pickup apparatus includes a detection unit in which a matrix of pixels converts radiation or light into analog electrical signals, a reading circuit configured to perform signal processing operation by reading the analog electric signals on a row-by-row basis, an A/D converter configured to convert a pixel signal output from the reading circuit into pixel data, and a correction processing unit configured to correct the pixel data. A control unit performs control processing so that the reading circuit outputs reset signals to the A/D converter in a period in which the signal processing operation of a predetermined row is performed, the A/D converter converts the reset signals into pieces of reset data in the period, and the correction processing unit averages the pieces of reset data output from the A/D converter and performs subtraction with the averaged reset data and the pixel data output from the A/D converter.

摘要翻译： 一种图像拾取装置，包括：检测单元，其中像素矩阵将辐射或光转换为模拟电信号;读取电路，被配置为通过逐行读取模拟电信号来执行信号处理操作; A / D转换器，被配置为将从读取电路输出的像素信号转换为像素数据;以及校正处理单元，被配置为校正像素数据。 控制单元执行控制处理，使得读取电路在执行预定行的信号处理操作的时段中将复位信号输出到A / D转换器，A / D转换器将复位信号转换成多个复位数据 并且校正处理单元对从A / D转换器输出的复位数据进行平均，并且利用平均的复位数据和从A / D转换器输出的像素数据进行减法。

公开(公告)号：US20120241639A1

公开(公告)日：2012-09-27

申请号：US13424062

申请日：2012-03-19

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

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

IPC分类号： H01L27/146 ,  G01T1/16

CPC分类号： G01T1/244 ,  A61B6/06 ,  A61B6/4405 ,  A61B6/4411 ,  A61B6/56

摘要： An image pickup apparatus includes a detector that includes a detection unit having a plurality of pixels in which conversion elements are included and a driving circuit that drives the detection unit and that executes an image pickup operation for outputting electrical signals, and a temperature control unit that includes a heating section that heats the conversion elements and that controls, before the image pickup operation begins, the temperature of the conversion elements by controlling the heating section such that the heating section heats the conversion elements in order to cause the temperature of the conversion elements before the image pickup operation begins to be higher than the temperature of the conversion elements during the image pickup operation.

摘要翻译： 一种图像拾取装置，包括检测器，其包括具有多个像素的检测单元，其中包括转换元件;驱动电路驱动检测单元并执行用于输出电信号的图像拾取操作;以及温度控制单元， 包括加热部分，其加热转换元件，并且在图像拾取操作开始之前通过控制加热部分来控制转换元件的温度，使得加热部分加热转换元件以使转换元件的温度 在图像拾取操作开始高于图像拾取操作期间的转换元件的温度之前。

公开(公告)号：US20090218476A1

公开(公告)日：2009-09-03

申请号：US11500323

申请日：2006-08-08

申请人： Toshio Kameshima ,  Chiori Mochizuki ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka

发明人： Toshio Kameshima ,  Chiori Mochizuki ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka

IPC分类号： H01L27/00 ,  H01J40/14

CPC分类号： H01L27/14663 ,  A61B6/00 ,  A61B6/4233 ,  H01L27/14609 ,  H01L27/14692 ,  H04N5/347 ,  H04N5/378

摘要： A radiation image pickup apparatus or the like which realizes improvement of noise resistance characteristics when adding pixel signals is provided. For this purpose, the radiation image pickup apparatus has a switching unit which is arranged between a signal wiring and an amplifier and can switch electrical connection among a plurality of signal wirings and electrical connection between a predetermined one of the plurality of signal wirings and the amplifier corresponding thereto. In accordance with mode setting, the switching unit switches a first state where the plurality of signal wirings are electrically connected and the predetermined signal wiring and the corresponding amplifier are electrically disconnected and a second state where the plurality of signal wirings are electrically disconnected and the predetermined signal wiring and the corresponding amplifier are electrically connected.

摘要翻译： 提供了当添加像素信号时实现噪声特性提高的放射线摄像装置等。 为此，放射线摄像装置具有设置在信号布线与放大器之间的切换单元，能够切换多个信号布线之间的电连接与多个信号布线中的预定的一个信号布线与放大器之间的电连接 对应于此。 根据模式设置，切换单元切换多个信号布线电连接的第一状态，并且预定信号布线和相应的放大器电断开，并且多个信号布线电断开的第二状态和预定的 信号线和相应的放大器电连接。

公开(公告)号：US20090166547A1

公开(公告)日：2009-07-02

申请号：US12398528

申请日：2009-03-05

申请人： TADAO ENDO ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka

发明人： TADAO ENDO ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka

IPC分类号： G01T1/24

CPC分类号： H04N5/32 ,  H04N5/361 ,  H04N5/3698 ,  H04N5/378

摘要： Each pixel is provided with a photoelectric converting device S1(1-1) or the like, a source-follower-type first transistor T1(1-1) or the like, a second transistor Te(1-1) to be turned on when reading an electrical signal from a pixel selected by a shift register SR1 for each line and outputting the signal to a readout circuit unit and a third transistor T3(1-1) to be turned on when resetting a photoelectric converting device set to a pixel selected by a shift register SR1 for each line. Moreover, a bias power source for supplying a photoelectric conversion bias to a photoelectric converting device and a reset power source for supplying a reset bias to a photoelectric converting device are set in the readout circuit unit. By using the radiation image pickup apparatus and its control method, it is possible to improve the S/N ratio while restraining noises and preferably, it is possible to perform stable and high-speed dynamic-image photographing and restrain dark current.

摘要翻译： 每个像素设置有光电转换装置S1（1-1）等，源极跟随器型第一晶体管T1（1-1）等，要接通的第二晶体管Te（1-1） 当从用于每行的移位寄存器SR1选择的像素读取电信号时，将该信号输出到读出电路单元和第三晶体管T3（1-1），以在将光电转换装置设置为像素时复位 由每行的移位寄存器SR1选择。 此外，在读出电路单元中设置用于向光电转换装置提供光电转换偏压的偏置电源和用于向光电转换装置提供复位偏压的复位电源。 通过使用放射线摄像装置及其控制方法，可以在抑制噪声的同时提高S / N比，优选地，可以进行稳定的高速动态图像拍摄并抑制暗电流。