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41.发明申请Radiographic imaging apparatus, control method thereof, and radiographic imaging system 有权射线照相成像装置，其控制方法和射线照相成像系统公开(公告)号：US20060289774A1
公开(公告)日：2006-12-28
申请号：US11450577
申请日：2006-06-12
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： A61B6/405 , A61B6/032 , A61B6/0478 , A61B6/4035 , A61B6/463 , A61B6/482
摘要： A radiographic imaging apparatus includes a radiation detection circuit in which a plurality of conversion elements to convert radiation emitted from a radiation source and transmitted through an object into an electrical signal are arranged two-dimensionally, a driving mechanism which changes a positional relationship between the object and the radiation source and the radiation detection circuit, a memory which stores, as image data, the electrical signal detected by the radiation detection circuit, an imaging control unit which controls the radiation source to change energy of the radiation emitted from the radiation source between radiography of a first frame and radiography of a second frame different from the first frame and controls driving of the driving mechanism in capturing a plurality of continuous radiographic images of the object, and an image processing unit which executes subtraction processing of image data of the first frame and image data of the second frame stored in the memory to generate a processed image and generates a tomographic image or a 3D image of the object by using the processed image.
摘要翻译： 放射线摄像成像装置包括放射线检测电路，其中多个转换元件将从辐射源发射并通过物体传输的辐射转换成电信号被二维布置，驱动机构改变物体之间的位置关系 以及辐射源和放射线检测电路，存储器，其存储由辐射检测电路检测的电信号作为图像数据;成像控制单元，其控制辐射源以改变从辐射源发射的辐射的能量; 第一帧的X射线照相和与第一帧不同的第二帧的X射线照相，并且控制驱动机构的驱动以捕获对象的多个连续的放射线图像;以及图像处理单元，执行第一帧的图像数据的减法处理 存储第二帧的帧和图像数据i n存储器以生成经处理的图像，并且通过使用处理的图像生成对象的断层图像或3D图像。
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公开(公告)号：US20050220270A1
公开(公告)日：2005-10-06
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
摘要： An X-ray image radiographing system according to the present invention comprises an X-ray generator 103, a detection unit 102, a correction unit 108 for performing a correction processing for the data outputted from the detection unit 102, and an output unit 115 such as a monitor for outputting data processed by the correction unit 108. Moreover, it comprises a control unit 101 for controlling the detection unit 102, the X-ray generator 103 and the correction unit 108, a radiographing condition memory 107 accessible by the control unit 101, a radiographing button 105 for making a radiographing request to the control unit 101, a radiographing mode setting unit 106 for setting a radiographing mode in the control unit 101, and a photo timer 104 having an AE function. The radiographing mode setting unit 106 may be constituted of a workstation, for example. Thereby, it is possible to provide an image radiographing apparatus and the image radiographing system capable of easily coping with a plurality of radiographing modes.
摘要翻译： 根据本发明的X射线图像摄影系统包括：X射线发生器103，检测单元102，用于对从检测单元102输出的数据进行校正处理的校正单元108以及诸如 作为用于输出由校正单元108处理的数据的监视器。 此外，它包括用于控制检测单元102，X射线发生器103和校正单元108的控制单元101，由控制单元101可访问的放射照相条件存储器107，用于向 控制单元101，用于设置控制单元101中的放射照相模式的放射照相模式设置单元106以及具有AE功能的光计时器104。 射线照相模式设定单元106可以由例如工作站构成。 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图像摄影系统。
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43.发明授权Imaging apparatus, radiation imaging system, controlling method of imaging apparatus, and recording medium recording control program of imaging apparatus 有权成像装置，放射线成像系统，成像装置的控制方法和成像装置的记录介质记录控制程序公开(公告)号：US08809795B2
公开(公告)日：2014-08-19
申请号：US12422474
申请日：2009-04-13
CPC分类号： G01T1/2928
摘要： An imaging apparatus includes a transmitting path to transmit the output electric signal, and a read-out circuit performing a sampling and holding operation for holding the electric signal read out through the transmitting path, and performing a reset operation to reset the transmitting path, and includes a control unit for controlling an outputting drive circuit and a read-out circuit so as to perform the sampling and holding operation row by row after a start of the output operation, to perform the reset operation after the sampling and holding operation, and to terminate the output operation after the reset operation. This can reduce the frame time without reducing the S/N ratio of the image signal.
摘要翻译： 一种成像装置包括发送输出电信号的发送路径和执行采样保持操作的读出电路，用于保持通过发送路径读出的电信号，并且执行复位操作以复位发送路径，以及 包括用于控制输出驱动电路和读出电路的控制单元，以便在开始输出操作之后逐行地执行采样和保持操作，以在采样和保持操作之后执行复位操作，并且 在复位操作后终止输出操作。 这可以减少帧时间而不降低图像信号的S / N比。
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44.发明授权Radiation imaging apparatus, its control method, and radiation imaging system 有权辐射成像设备，其控制方法和放射成像系统公开(公告)号：US08247779B2
公开(公告)日：2012-08-21
申请号：US12490926
申请日：2009-06-24
IPC分类号： G01T1/24
CPC分类号： A61B6/4233 , A61B6/4441 , H01L27/14665 , H04N5/325
摘要： A radiation imaging apparatus having high frame rate and picture quality by offset correction has: a sensor array having matrix-shaped pixels each including a converting element and a TFT; a driver for supplying signals to control terminals of the TFTs row by row; a reader for holding a signal in a first or second sampling/holding (S/H) circuit and outputting an image signal; and a controller for controlling the driver and reader. Until the image signal is output after irradiation of the apparatus with pulsating radiation, the TFT of a pixel is driven so as to output a first signal, the TFT of the pixel to which the first signal has been output is driven so as to output a second electric signal, and the reader outputs the image signal of the signal showing a difference between the first and second signals held in the first and second S/H circuits.
摘要翻译： 通过偏移校正具有高帧率和图像质量的放射线成像装置具有：具有矩阵形像素的传感器阵列，每个像素像素包括转换元件和TFT; 用于逐行地向TFT的控制端子提供信号的驱动器; 用于在第一或第二采样/保持（S / H）电路中保持信号并输出图像信号的读取器; 以及用于控制驾驶员和读取器的控制器。 直到图像信号在用脉动辐射照射设备之后输出时，像素的TFT被驱动以输出第一信号，驱动第一信号的像素的TFT被驱动以输出 第二电信号，并且读取器输出表示第一和第二S / H电路中保持的第一和第二信号之间的差的信号的图像信号。
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45.发明授权Imaging apparatus, imaging system, its controlling method, and storage medium storing its program 有权成像设备，成像系统，其控制方法和存储其程序的存储介质公开(公告)号：US08232529B2
公开(公告)日：2012-07-31
申请号：US13018576
申请日：2011-02-01
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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46.发明授权Radiation imaging apparatus and method of driving the same, and radiation imaging system 有权辐射成像装置及其驱动方法及放射成像系统公开(公告)号：US08107588B2
公开(公告)日：2012-01-31
申请号：US12525125
申请日：2008-01-29
CPC分类号： H05G1/30 , G01T1/00 , H01L27/14676 , H04N5/232 , H04N5/32 , H04N5/3742 , H04N5/378
摘要： There is provided a radiation imaging apparatus delivering an output image with a satisfactory image quality irrespective of the dosage of the X-rays incident on the detector. The radiation imaging apparatus according to the present invention includes a detection unit for detecting as an image signal an X-ray irradiated from the an X-ray generation apparatus and penetrating through an object; a read out unit for amplifying and reading out the image signal detected by the detection unit; and a control unit for controlling at least one of the X-ray generation apparatus, the detection unit and the read out unit such that the obtained SN ratio of the image signal according to the dosage of the X-rays incident on the detector can be equal to the S/N ratio required for the image signal.
摘要翻译： 提供了一种放射成像装置，其输出具有令人满意的图像质量的输出图像，而与入射到检测器上的X射线的剂量无关。 根据本发明的放射线摄像装置包括检测单元，用于检测从X射线产生装置照射并穿透物体的X射线作为图像信号; 读出单元，用于放大和读出由检测单元检测到的图像信号; 以及控制单元，用于控制X射线产生装置，检测单元和读出单元中的至少一个，使得根据入射在检测器上的X射线的剂量，获得的图像信号的SN比可以是 等于图像信号所需的S / N比。
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47.发明授权Radiation imaging apparatus, its control method, and recording medium storing program for executing the control method 有权辐射成像装置，其控制方法和用于执行控制方法的记录介质存储程序公开(公告)号：US07989772B2
公开(公告)日：2011-08-02
申请号：US11721281
申请日：2006-11-27
IPC分类号： G01D18/00
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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48.发明授权Radiation imaging apparatus, and method and program for controlling radiation imaging apparatus 有权辐射成像装置，以及用于控制放射线成像装置的方法和程序公开(公告)号：US07869568B2
公开(公告)日：2011-01-11
申请号：US12039983
申请日：2008-02-29
IPC分类号： H05G1/64
CPC分类号： H04N5/32 , A61B6/4441 , A61B6/4464 , A61B6/585 , H04N5/353 , H04N5/3597 , H04N5/361 , H04N5/3655
摘要： A radiation imaging apparatus is provided that stabilizes a dark current, image ghosting, and the sensitivity of the imaging apparatus, reduces the power consumption and the heat generation of a light source, and improves the durability of a conversion element. The radiation imaging apparatus includes a flat panel detector including a conversion unit, where the conversion unit includes a plurality of pixels arranged in a matrix and each of the pixels includes a conversion element capable of converting a radiation ray into electric charge, a light source capable of emitting light to the conversion unit, and a control unit configured to control the flat panel detector and the light source. The control unit controls the emission of light performed by the light source on the basis of a signal output from the flat panel detector.
摘要翻译： 提供了稳定暗电流，图像重影以及成像装置的灵敏度的放射线成像装置，降低了光源的功耗和发热，提高了转换元件的耐久性。 放射线摄像装置包括：平面检测器，包括转换单元，其中转换单元包括以矩阵排列的多个像素，并且每个像素包括能够将辐射线转换成电荷的转换元件， 向所述转换单元发射光;以及控制单元，被配置为控制所述平板检测器和所述光源。 控制单元基于从平板检测器输出的信号来控制由光源执行的光的发射。
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49.发明申请公开(公告)号：US20100277592A1
公开(公告)日：2010-11-04
申请号：US12744124
申请日：2009-01-20
IPC分类号： H04N5/30
CPC分类号： G01T1/1647 , A61B6/00 , H01L27/14658 , H04N5/361 , H04N5/3658
摘要： A read out operation for reading out image data from a conversion circuit irradiated with a radiation, and a read out operation for reading out offset image data from the conversion circuit without irradiated with a radiation are selectively conducted, a control is conducted to repeat at a plurality of times the operation for reading out the offset image data, offset data corresponding to each pixel is extracted from one of the plurality of the offset image data to generate corrective offset image data such that offset data corresponding to all the pixels in a row of the matrix is not extracted from one of the plurality of offset image data, and the corrective offset image data is subtracted from the image data to perform an offset correction to render line noise less noticeable, for an offset correction without line noise by a simple signal processing to be provided.
摘要翻译： 选择性地进行用于从辐射照射的转换电路读出图像数据的读出操作和用于从辐射中照射而从转换电路读出偏移图像数据的读出操作，进行控制以在 多次读取偏移图像数据的操作，从多个偏移图像数据中的一个提取对应于每个像素的偏移数据，以产生校正偏移图像数据，使得与一行中的所有像素对应的偏移数据 不从多个偏移图像数据中的一个提取矩阵，并且从图像数据中减去校正偏移图像数据以进行偏移校正，以使得线噪声不显着，通过简单信号进行无线噪声的偏移校正 要提供处理。
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50.发明授权公开(公告)号：US07786448B2
公开(公告)日：2010-08-31
申请号：US12488256
申请日：2009-06-19
IPC分类号： G01T1/24
CPC分类号： H04N5/32 , H04N5/3658 , H04N5/374 , H04N5/3742 , H04N5/378
摘要： For reducing extremely conspicuous line noise appearing in a picked up image with a simple configuration without complicating the configuration of an apparatus, an imaging apparatus a first sampling and holding circuit for sampling and holding an electric signal from pixels in one column of the detection unit and a second sampling and holding circuit for sampling and holding and electric signal from pixels in the other column of the detection unit, and a control unit for controlling such that the first and second sampling and holding circuits perform the sampling and holding in mutually different timings.
摘要翻译： 为了以简单的配置减少出现在拾取图像中的非常明显的线路噪声，而不会使设备的配置复杂化，成像设备具有用于从检测单元的一列中的像素采样和保持电信号的第一采样和保持电路，以及 用于从检测单元的另一列中的像素采样和保持电信号的第二采样和保持电路;以及控制单元，用于控制使得第一和第二采样保持电路在相互不同的定时执行采样和保持。
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