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公开(公告)号：US20070291904A1
公开(公告)日：2007-12-20
申请号：US11751686
申请日：2007-05-22
IPC分类号： G01D18/00
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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62.发明授权公开(公告)号：US07302039B2
公开(公告)日：2007-11-27
申请号：US11346873
申请日：2006-02-02
申请人： Katsuro Takenaka , Tadao Endo , Toshio Kameshima , Tomoyuki Yagi
发明人： Katsuro Takenaka , Tadao Endo , Toshio Kameshima , Tomoyuki Yagi
IPC分类号： H05G1/64
CPC分类号： G01T1/2928 , G01N23/04 , H04N5/32 , H04N5/361 , H04N5/3651 , H04N5/374
摘要： At least one exemplary embodiment is directed to a radiography apparatus configured to have an offset reading period, where during the offset reading period an offset reading operation is performed without illumination by radiation (e.g., X-rays). The offset reading period can be different from a radiation (e.g., X-ray) reading period in timings of applying a gate pulse. During the offset reading period, a pixel addition can be performed such that the switching elements corresponding to two or more lines are concurrently turned on-off thus reducing the offset reading period.
摘要翻译： 至少一个示例性实施例涉及被配置为具有偏移读取周期的放射照相装置，其中在偏移读取周期期间，在不通过辐射（例如X射线）照射的情况下执行偏移读取操作。 偏移读取周期可以不同于施加栅极脉冲的定时中的辐射（例如，X射线）读取周期。 在偏移读取期间，可以执行像素相加，使得对应于两条或更多行的开关元件同时导通，从而减小偏移读取周期。
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公开(公告)号：US07227926B2
公开(公告)日：2007-06-05
申请号：US11088775
申请日：2005-03-25
申请人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
发明人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
IPC分类号： H05G1/64
摘要： An X-ray image radiographing system comprises an X-ray generator, a detection unit, a correction unit for performing a correction processing for the data outputted from the detection unit, and an output unit for outputting data processed by the correction unit. Moreover, it comprises a control unit for controlling the detection unit, the X-ray generator and the correction unit, a radiographing condition memory accessible by the control unit, a radiographing button for making a radiographing request to the control unit, a radiographing mode setting unit 106 for setting a radiographing mode in the control unit, and a photo timer having an AE function. The radiographing mode setting unit may be constituted of a workstation. Thereby, it is possible to provide an image radiographing apparatus and system capable of easily coping with a plurality of radiographing modes.
摘要翻译： X射线图像摄影系统包括X射线发生器，检测单元，用于对从检测单元输出的数据执行校正处理的校正单元，以及用于输出由校正单元处理的数据的输出单元。 此外，它包括用于控制检测单元，X射线发生器和校正单元的控制单元，由控制单元可访问的放射照相条件存储器，用于向控制单元进行放射照相请求的放射照相按钮，放射照相模式设置 用于在控制单元中设置放射照相模式的单元和具有AE功能的照片定时器。 射线照相模式设定单元可以由工作站构成。 由此，能够提供能够容易地应对多个摄影模式的图像摄影装置和系统。
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公开(公告)号：US20060104417A1
公开(公告)日：2006-05-18
申请号：US11319910
申请日：2005-12-27
申请人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
发明人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
IPC分类号： H05G1/64
CPC分类号： H04N5/378 , A61B6/00 , A61B6/5235 , A61B6/585 , H04N5/32 , H04N5/3651
摘要： A correction process is performed using different gain correction signals (GSA, GSB) in accordance with radiographic modes (moving image radiographic mode/still image radiographic mode) set in an X-ray imaging apparatus, respectively. This makes it possible to acquire an image with decreased correction errors even when the X-ray imaging apparatus is configured using an imaging unit having different gain characteristics in the still image radiographic mode and moving image radiographic mode.
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公开(公告)号：US20050199834A1
公开(公告)日：2005-09-15
申请号：US11079504
申请日：2005-03-11
申请人： Katsuro Takenaka , Tadao Endo , Tomoyuki Yagi , Toshio Kameshima
发明人： Katsuro Takenaka , Tadao Endo , Tomoyuki Yagi , Toshio Kameshima
IPC分类号： G01T1/00 , G01T1/20 , G01T1/24 , G21K4/00 , H01L25/00 , H01L27/14 , H01L27/146 , H01L31/09 , H04N5/32 , H04N5/335 , H04N5/341 , H04N5/353 , H04N5/357 , H04N5/369 , H04N5/374
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S 3）。 图像处理器将最大输出最大值与预设阈值进行比较（步骤S 4）。 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S 5），并执行刷新操作。
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公开(公告)号：US20120138811A1
公开(公告)日：2012-06-07
申请号：US13390592
申请日：2010-08-25
申请人： Katsuro Takenaka , Tadao Endo , Toshio Kameshima , Masayoshi Akiyata , Tomoyuki Yagi , Keigo Yokoyama
发明人： Katsuro Takenaka , Tadao Endo , Toshio Kameshima , Masayoshi Akiyata , Tomoyuki Yagi , Keigo Yokoyama
IPC分类号： G01T1/17 , H01L27/146
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。
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公开(公告)号：US08167486B2
公开(公告)日：2012-05-01
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：US20120044392A1
公开(公告)日：2012-02-23
申请号：US13286478
申请日：2011-11-01
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 information 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 information 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用于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，用于根据操作模式，根据从多个正确信息中提取的校正信息来执行像素信息的校正。
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69.发明授权公开(公告)号：US08093562B2
公开(公告)日：2012-01-10
申请号：US12748004
申请日：2010-03-26
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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70.发明申请IMAGING APPARATUS, IMAGING SYSTEM, ITS CONTROLLING METHOD, AND STORAGE MEDIUM STORING ITS PROGRAM 有权成像设备，成像系统，其控制方法和存储介质存储程序公开(公告)号：US20110121183A1
公开(公告)日：2011-05-26
申请号：US13018576
申请日：2011-02-01
IPC分类号： G01T1/20
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。
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