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21.发明申请RADIATION IMAGING APPARATUS, DRIVE METHOD AND PROGRAM OF THE RADIATION IMAGING APPARATUS 失效辐射成像装置，放射成像装置的驱动方法和程序公开(公告)号：US20090121143A1
公开(公告)日：2009-05-14
申请号：US12247491
申请日：2008-10-08
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 (S1-1) for converting an incident radiation into an electric charge and a switching element (T1-1) for transferring an electric signal based on the electric charge; a drive circuit unit (106) for outputting, to the switching element, a drive signal having a voltage for turning on the switching element; a read out circuit unit (A1, CL1, 100 and 101) for reading out the electric signal from the pixel; a calculating unit (103) for calculating S/N ratio of the electric signal read out by the read out circuit unit; and a determination unit (104, 105 and LUT) 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，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（S1-1）和开关元件（T1- 1）用于基于电荷传送电信号; 驱动电路单元（106），用于向开关元件输出具有用于接通开关元件的电压的驱动信号; 读出电路单元（A1，CL1,100和101），用于从像素读出电信号; 计算单元，用于计算读出电路单元读出的电信号的S / N比; 以及能够根据所计算的S / N比来改变从驱动电路单元输出的驱动信号的电压的判定单元（104,105和LUT）。 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。
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22.发明授权Imaging apparatus having a read out circuit unit with dual readout operation and method of improving a frame rate 失效具有具有双重读出操作的读出电路单元和提高帧速率的方法的成像设备公开(公告)号：US07514663B2
公开(公告)日：2009-04-07
申请号：US11765107
申请日：2007-06-19
IPC分类号： H01L27/00
CPC分类号： H04N5/376 , A61B6/503 , H04N5/32 , H04N5/343 , H04N5/3454 , H04N5/3456 , H04N5/347 , H04N5/374
摘要： An image apparatus capable of improving a frame rate to prevent resolution in the predetermined area from decreasing and forming image signals outside the predetermined area has an area sensor in which a plurality of pixels is arranged in a matrix, a drive circuit unit, a read out circuit unit and a processing unit processing signals transferred from the read out circuit unit. The drive circuit unit and the read out circuit unit perform a first operation in which signals are simultaneously read out from N pixels in a first area of the area sensor (where N is an integer equal to one or more) and a second operation in which signals are simultaneously read out from M pixels in a second area except the first area of the area sensor (where M is an integer equal to two or more and always greater than N), the first and second read out operations are continuously performed in one frame period, and a first and a second signal obtained by the first and the second read out operations are continuously transferred from the read out circuit unit to the processing unit.
摘要翻译： 能够提高帧速率以防止预定区域中的分辨率降低和形成预定区域外的图像信号的图像装置具有其中多个像素排列成矩阵的区域传感器，驱动电路单元，读出 电路单元和处理单元，处理从读出电路单元传送的信号。 驱动电路单元和读出电路单元执行第一操作，其中从区域传感器的第一区域（其中N是等于一个或多于一个的整数）的N个像素同时读出信号，其中第二操作 信号同时从除了区域传感器的第一区域（其中M是等于两个或更多且总是大于N的整数）的第二区域中的M个像素读出，第一和第二读出操作在一个 并且通过第一和第二读出操作获得的第一和第二信号从读出电路单元连续地传送到处理单元。
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公开(公告)号：US20090086915A1
公开(公告)日：2009-04-02
申请号：US12328302
申请日：2008-12-04
IPC分类号： 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。
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公开(公告)号：US20090014661A1
公开(公告)日：2009-01-15
申请号：US11814749
申请日：2007-01-24
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 an 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 images 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 images 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设备中，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辐射图像的最大图像数量小于平面图像的最大图像数 当平板检测器被保持单元保持时，面板检测器可以导出。
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25.发明申请RADIATION IMAGING APPARATUS, RADIATION IMAGING SYSTEM, AND METHOD OF CONTROLLING RADIATION IMAGING APPARATUS 有权辐射成像装置，放射成像系统及控制放射成像装置的方法公开(公告)号：US20080279334A1
公开(公告)日：2008-11-13
申请号：US12175495
申请日：2008-07-18
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。
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公开(公告)号：US20070080299A1
公开(公告)日：2007-04-12
申请号：US11535726
申请日：2006-09-27
IPC分类号： G01T1/24
CPC分类号： G01T1/2018 , G01T1/247
摘要： It is made possible that, in accordance with a plurality of radiographing modes such as the still image radiographing mode and the moving image radiographing mode, the outputs both in the irradiation period and in the non-irradiation period are made to fall within the dynamic range of the radiographing system, whereby an accurate, high-S/N-ratio X-ray radiographic image is obtained. For that purpose, in accordance with the plurality of radiographing modes, an arithmetic operation unit adjusts a power source to control voltage to be applied to a reading circuit unit or an Analogue-Digital conversion unit, such that, in each of the radiographing modes, both an electric signal in the X-ray irradiation period and an electric signal in the X-ray non-irradiation period fall within the dynamic ranges of the reading circuit unit and the Analogue-Digital conversion unit.
摘要翻译： 有可能根据诸如静止图像放射照相模式和运动图像放射照相模式的多种放射照相模式，使得在照射期间和非照射期间的输出都落在动态范围内 的X射线照相系统，从而获得准确的高S / N比X射线照相图像。 为此，根据多个放射照相模式，算术运算单元调整电源以控制要施加到读取电路单元或模拟数字转换单元的电压，使得在每个放射照相模式中， X射线照射期间的电信号和X射线不照射期间的电信号都在读取电路部和模拟数字转换部的动态范围内。
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27.发明授权公开(公告)号：US08723996B2
公开(公告)日：2014-05-13
申请号：US12744124
申请日：2009-01-20
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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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：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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30.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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