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公开(公告)号：US08624991B2
公开(公告)日：2014-01-07
申请号：US12634390
申请日：2009-12-09
摘要： An apparatus includes a detection unit including a plurality of pixels that are arranged in a matrix and that are divided into at least first and second pixel groups, a signal processing unit including first and second readout circuits and first and second A/D converters, a power supply unit configured to supply the components included in the signal processing unit with respective biases, and a control unit configured to control at least one of the signal processing unit and the power supply unit. The control unit is configured to perform processing of altering an analog signal capable of being input into at least one of the first and second A/D converters or altering an A/D conversion characteristic of at least one of the first and second A/D converters.
摘要翻译： 一种装置，包括：检测单元，包括排列成矩阵并被划分为至少第一和第二像素组的多个像素;信号处理单元，包括第一和第二读出电路以及第一和第二A / D转换器， 电源单元，被配置为将包括在信号处理单元中的组件提供各自的偏压;以及控制单元，被配置为控制信号处理单元和电源单元中的至少一个。 控制单元被配置为执行改变能够被输入到第一和第二A / D转换器中的至少一个的模拟信号的处理或改变第一和第二A / D中的至少一个的A / D转换特性 转换器。
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公开(公告)号：US08576294B2
公开(公告)日：2013-11-05
申请号：US12271612
申请日：2008-11-14
申请人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
发明人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
CPC分类号： H04N5/32 , H04N5/23245 , H04N5/363
摘要： An imaging apparatus includes a sensor array, readout apparatus, and control circuit. The readout apparatus includes first LPFs arranged in correspondence with signal lines, an analog multiplexer, and a second LPF. The cut-off frequencies of the first and second LPFs can be switched on two stages, and the control circuit switches the cut-off frequencies of the first and second LPFs in accordance with the imaging mode.
摘要翻译： 一种成像装置包括传感器阵列，读出装置和控制电路。 读出装置包括与信号线对应地布置的第一LPF，模拟多路复用器和第二LPF。 第一和第二LPF的截止频率可以在两级上切换，并且控制电路根据成像模式切换第一和第二LPF的截止频率。
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53.发明授权Radiographic imaging apparatus and radiographic imaging system, control method therefor, and program therefor 有权射线照相成像装置及放射成像系统及其控制方法及其程序公开(公告)号：US08227757B2
公开(公告)日：2012-07-24
申请号：US12844554
申请日：2010-07-27
申请人： Keigo Yokoyama , Tadao Endo , Toshio Kameshima , Masayoshi Akiyama , Tomoyuki Yagi , Katsuro Takenaka , Sho Sato
发明人： Keigo Yokoyama , Tadao Endo , Toshio Kameshima , Masayoshi Akiyama , Tomoyuki Yagi , Katsuro Takenaka , Sho Sato
CPC分类号： A61B6/06 , A61B6/4233 , A61B6/5241 , A61B6/542 , A61B6/585 , H04N5/32
摘要： An imaging apparatus includes a detector, having a plurality of pixels arranged in a matrix, for performing first and second radiography operations, a bias light source, and a control unit that controls the operation of the detector and the bias light source. In the first radiography operation, image data corresponding to radiation in a first radiation field corresponding to some of the pixels is output. In the second radiography operation, image data corresponding to radiation in a second radiation field larger than the first radiation field is output. In accordance with a change from the first radiation field to the second radiation field, the operation of the bias light source is controlled so that the irradiation with the bias light is performed during a period between the first and second radiography operations at a bias-light integral dose determined based on radiation integral dose information in the first radiography operation.
摘要翻译： 一种成像装置包括具有排列成矩阵的多个像素的检测器，用于执行第一和第二次X射线照相操作，偏置光源和控制检测器和偏置光源的操作的控制单元。 在第一次放射线照相操作中，输出与对应于一些像素的第一辐射场中的辐射对应的图像数据。 在第二次X射线摄影操作中，输出对应于大于第一辐射场的第二辐射场中的辐射的图像数据。 根据从第一辐射场到第二辐射场的变化，控制偏置光源的操作，使得在偏光下的第一和第二射线照相操作期间执行偏置光的照射 在第一次放射照相术中基于辐射积分剂量信息确定的积分剂量。
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公开(公告)号：US08072514B2
公开(公告)日：2011-12-06
申请号：US12279198
申请日：2007-03-15
IPC分类号： H04N9/64
CPC分类号： A61B6/00 , A61B6/5235 , A61B6/585 , G06T5/002 , G06T2200/28 , G06T2207/10116 , G06T2207/30004 , H04N5/32 , H04N5/347 , H04N5/367
摘要： An imaging apparatus is provided, which improves correction accuracy at the time of pixel addition reading and scarcely deteriorates in resolution of the image data. This apparatus comprises: a conversion unit comprising a plurality of unit-pixels and converting an incident radiation or a light into pixel information; a signal processing unit capable of reading the pixel information for each unit-pixel, or capable of reading additional added pixel information for a plurality of unit-pixels, based on a control from a control unit for controlling a driving of the conversion unit according to a plurality of operation modes; a storage unit for storing a plurality of correction informations according to the plurality of operating modes; and a correction unit for performing the correction of the pixel information based on the correction information extracted from the plurality of correct informations according to the operation mode.
摘要翻译： 提供了一种成像装置，其提高了像素附加读取时的校正精度，并且几乎不降低图像数据的分辨率。 该装置包括：转换单元，包括多个单位像素，并将入射的辐射或光转换为像素信息; 信号处理单元，其能够基于来自控制单元的控制单元读取每个单位像素的像素信息，或者能够读取多个单位像素的附加的附加像素信息，根据控制单元控制转换单元的驱动 多种操作模式; 存储单元，用于根据多个操作模式存储多个校正信息; 以及校正单元，用于根据根据操作模式从多个正确信息提取的校正信息执行像素信息的校正。
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55.发明申请RADIATION IMAGING APPARATUS, ITS CONTROL METHOD, AND RECORDING MEDIUM STORING PROGRAM FOR EXECUTING THE CONTROL METHOD 有权辐射成像装置，其控制方法和记录中央存储程序，用于执行控制方法公开(公告)号：US20110240870A1
公开(公告)日：2011-10-06
申请号：US13163431
申请日：2011-06-17
IPC分类号： G01T1/24
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。
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公开(公告)号：US20110044430A1
公开(公告)日：2011-02-24
申请号：US12940444
申请日：2010-11-05
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。
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公开(公告)号：US07847263B2
公开(公告)日：2010-12-07
申请号：US12607464
申请日：2009-10-28
IPC分类号： G01T1/20
CPC分类号： A61B6/4488 , A61B6/4233 , A61B6/4405 , A61B6/4411 , A61B6/4429 , A61B6/56
摘要： A single flat panel detector provides radiation images which can correspond with various radiographic modes. In a radiation imaging apparatus including a flat panel detector which derives a radiation image according to incident radiation, a holding unit which holds the flat panel detector and a connecting mechanism capable of performing a connecting and a disconnecting between the holding unit and the flat panel detector, the flat panel detector can be controlled so that the maximum number of radiation images that the flat panel detector can derive when the flat panel detector is disengaged from the holding unit is smaller than the maximum number of radiation images that the flat panel detector can derive when the flat panel detector is held by the holding unit.
摘要翻译： 单个平板检测器提供可以对应于各种放射照相模式的辐射图像。 在包括根据入射辐射导出放射线图像的平板检测器的放射线成像装置中，保持平板检测器的保持单元和能够执行保持单元和平板检测器之间的连接和断开的连接机构 可以对平板检测器进行控制，使得当平板检测器与保持单元分离时，平板检测器可以获得的最大数量的辐射图像小于平板检测器可获得的最大辐射图像数 当平板检测器被保持单元保持时。
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公开(公告)号：US07839977B2
公开(公告)日：2010-11-23
申请号：US11722221
申请日：2006-10-02
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 diving circuit unit to drive a first switching element connected to a conversion element, wherein the conversion element converting radiation into charges, a second diving circuit unit to drive a second switching element connected to the conversion element, and a control unit to control the first diving circuit and the second diving circuit independently at different timing.
摘要翻译： 辐射成像装置包括：第一潜水电路单元，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;第二跳跃电路单元，驱动连接到所述转换元件的第二开关元件;以及 控制单元以不同的时间独立地控制第一潜水电路和第二潜水电路。
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公开(公告)号：US07732778B2
公开(公告)日：2010-06-08
申请号：US11608083
申请日：2006-12-07
IPC分类号： G01T1/24
摘要： The invention intends to be able to perform a gain correction fully adequately. Hence, at the time of radiographing an object, a gain correction of the object image is performed based on a gain correction image (XRc1) derived by performing a light reset. On the other hand, at the time of radiographing an object, when a light reset is not performed, a gain correction of the object image is performed based on a gain correction image (XRc2) derived without performing the light reset.
摘要翻译： 本发明旨在能够充分地进行增益校正。 因此，在拍摄物体时，基于通过进行光复位导出的增益校正图像（XRc1）来执行对象图像的增益校正。 另一方面，在拍摄物体时，当不进行光复位时，基于不进行光复位而导出的增益校正图像（XRc2），进行被摄体图像的增益校正。
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公开(公告)号：US07683337B2
公开(公告)日：2010-03-23
申请号：US12263895
申请日：2008-11-03
申请人： Katsuro Takenaka , Tadao Endo , Tomoyuki Yagi , Toshio Kameshima
发明人： Katsuro Takenaka , Tadao Endo , Tomoyuki Yagi , Toshio Kameshima
CPC分类号： H04N5/32 , H01L27/14607 , H01L27/14663 , H04N5/341 , H04N5/353
摘要： If image data is input to an image processor (step S1), the image processor generates an integrated image sum (step S2). The image processor extracts a maximum output max from the integrated image sum (step S3). The image processor compares the maximum output max with a preset threshold (step S4). In this case, the threshold is set to 80% of the saturation amount. When the saturation amount is 3 V, the threshold is 2.4 V. If the maximum value max is smaller than the threshold, imaging continues. If the maximum value max is equal to or larger than the threshold, the integrated image sum is cleared to 0 (step S5), and refresh operation is performed.
摘要翻译： 如果图像数据被输入到图像处理器（步骤S1），则图像处理器生成积分图像和（步骤S2）。 图像处理器从积分图像和提取最大输出最大值（步骤S3）。 图像处理器将最大输出最大值与预设阈值进行比较（步骤S4）。 在这种情况下，将阈值设定为饱和量的80％。 当饱和量为3 V时，阈值为2.4 V.如果最大值max小于阈值，则成像继续。 如果最大值max等于或大于阈值，则将积分图像和清除为0（步骤S5），并且执行刷新操作。
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