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91.发明授权Radiation imaging apparatus, drive method and program of the radiation imaging apparatus 失效辐射成像设备，辐射成像设备的驱动方法和程序公开(公告)号：US07732776B2
公开(公告)日：2010-06-08
申请号：US12247491
申请日：2008-10-08
IPC分类号： G01T1/20
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 for converting incident radiation into an electric charge and a switching element for transferring an electric signal based on the electric charge; a drive circuit unit for outputting, to the switching element, a drive signal having a voltage for turning on the switching element; a read-out circuit unit for reading out the electric signal from the pixel; a calculating unit for calculating the S/N ratio of the electric signal read out by the read-out circuit unit; and a determination unit 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，其特征在于包括：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和用于基于 电荷; 驱动电路单元，向所述开关元件输出具有用于接通所述开关元件的电压的驱动信号; 读出电路单元，用于从像素读出电信号; 计算单元，用于计算由读出电路单元读出的电信号的S / N比; 以及确定单元，其能够根据所计算的S / N比来改变从驱动电路单元输出的驱动信号的电压。 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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92.发明授权Radiation imaging apparatus, driving method thereof and radiation imaging system 有权辐射成像装置，其驱动方法和辐射成像系统公开(公告)号：US07724874B2
公开(公告)日：2010-05-25
申请号：US11773686
申请日：2007-07-05
IPC分类号： H05G1/64
CPC分类号： G01T1/2018
摘要： A memory stores first image data for offset correction generated by performing an interlace scanning of the driving lines of odd rows only in a driving circuit unit. A memory stores second image data for offset correction generated by performing the interlace scanning of the driving lines of even rows only in the driving circuit unit. A processing unit synthesizes the first image data for offset correction and the second image data for offset correction, thereby to generate image data for offset correction of one frame portion, and an arithmetic operation unit performs an arithmetic operation processing on the radiation image data by using the image data for offset correction of one frame portion synthesized and generated, thereby to perform the offset correction of the radiation image data.
摘要翻译： 存储器存储用于仅在驱动电路单元中执行奇数行的驱动线的隔行扫描而产生的用于偏移校正的第一图像数据。 存储器存储用于通过仅在驱动电路单元中执行偶数行的驱动线的隔行扫描而产生的用于偏移校正的第二图像数据。 处理单元合成用于偏移校正的第一图像数据和用于偏移校正的第二图像数据，从而生成用于一帧部分的偏移校正的图像数据，并且算术运算单元通过使用对放射线图像数据进行算术运算处理 用于对合成和产生的一个帧部分的偏移校正的图像数据，从而执行放射线图像数据的偏移校正。
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公开(公告)号：US07718973B2
公开(公告)日：2010-05-18
申请号：US11683145
申请日：2007-03-07
IPC分类号： G01T1/24
CPC分类号： G01T1/247 , G01T7/005 , H04N5/32 , H04N5/3658 , H04N5/374
摘要： A radiation imaging apparatus comprises a read unit reading electric signals from radiation detecting elements that are arranged two-dimensionally and that convert incident radiation into electric signals. A control unit controls the radiation detecting unit such that a first radiation detecting element is switched into a state in which charge generated therein cannot be taken out (a “senseless state”) and a second radiation detecting element is switched into a state in which it charge generated therein by incident radiation can be taken out (a “sensible state”), and a signal processing unit performs a subtraction processing such that the electric signal from the radiation detecting element that is in the senseless state is subtracted from the electric signal from the radiation detecting element that is in the sensible state, to reduce conspicuous line noise in an image by means of a relatively simple configuration.
摘要翻译： 放射线成像装置包括从二维布置的放射线检测元件读取电信号并将入射的辐射转换为电信号的读取单元。 控制单元控制辐射检测单元，使得第一辐射检测元件切换到其中产生的电荷不能被取出的状态（“无感觉状态”），并且第二辐射检测元件切换到其中的状态 可以取出通过入射辐射产生的电荷（“敏感状态”），并且信号处理单元进行减法处理，使得来自处于无感觉状态的放射线检测元件的电信号从来自 处于敏感状态的放射线检测元件通过相对简单的结构来减少图像中的显着线噪声。
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94.发明申请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和辐射成像系统公开(公告)号：US20100086102A1
公开(公告)日：2010-04-08
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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公开(公告)号：US20100044573A1
公开(公告)日：2010-02-25
申请号：US12607464
申请日：2009-10-28
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：US07645995B2
公开(公告)日：2010-01-12
申请号：US12271958
申请日：2008-11-17
IPC分类号： G01T1/24
CPC分类号： H04N5/374 , H04N5/32 , H04N5/357 , H04N5/3658
摘要： As a radiation imaging apparatus which can easily and effectively correct line noise, there is provided a radiation imaging apparatus having: a conversion unit having a pixel region in which a plurality of pixels each having a conversion element (202) for converting a radiation into an electric charge and a switching element (201) for outputting an electric signal based on the electric charge are arranged in a matrix; a capacitor element (301) arranged outside of the pixel region; a reading out circuit unit (108) for reading out the electric signals from the pixels row by row and reading out, in parallel, a signal from the capacitor element and the electric signal from the pixel; and a correction unit for correcting the electric signal based on the signal from the capacitor element.
摘要翻译： 作为可以容易且有效地校正线路噪声的放射线摄像装置，提供了一种放射线摄像装置，其具有：具有像素区域的转换单元，其中多个像素各自具有用于将辐射转换成 电荷和用于基于电荷输出电信号的开关元件（201）排列成矩阵; 布置在所述像素区域的外侧的电容器元件（301） 读出电路单元（108），用于并行地读出来自像素的电信号，并且并行地读出来自电容器元件的信号和来自像素的电信号; 以及校正单元，用于基于来自电容器元件的信号校正电信号。
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97.发明授权公开(公告)号：US07595831B2
公开(公告)日：2009-09-29
申请号：US11737592
申请日：2007-04-19
IPC分类号： H04N3/14
CPC分类号： H04N5/32 , H01L27/14676 , H04N5/23241 , H04N5/243 , H04N5/357 , H04N5/3698 , H04N5/378
摘要： An imaging apparatus includes a sensor array in which a plurality of pixels each including a photoelectric conversion element and a switching element are arrayed in a row direction and a column direction, signal wiring connected to a plurality of the switching elements provided in the column direction, and a reading-circuit unit connected to the signal wiring, where the reading-circuit unit includes a first operational area including a first amplifying circuit and a second operational area including a second amplifying circuit connected to the first operational area, and the first and second amplifying circuits are each arranged to be supplied with power within a range, the maximum of the power-supply voltage range of the first amplifying circuit being larger than the maximum of a power-supply voltage range of the second amplifying circuit.
摘要翻译： 一种成像装置，包括传感器阵列，其中包括光电转换元件和开关元件的多个像素在行方向和列方向上排列，连接到沿列方向设置的多个开关元件的信号布线， 以及连接到所述信号线的读取电路单元，其中所述读取电路单元包括包括第一放大电路的第一操作区域和包括连接到所述第一操作区域的第二放大电路的第二操作区域，所述第一和第二 放大电路各被配置为在一定范围内被供电，第一放大电路的电源电压范围的最大值大于第二放大电路的电源电压范围的最大值。
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公开(公告)号：US20090021607A1
公开(公告)日：2009-01-22
申请号：US12279198
申请日：2007-03-15
IPC分类号： H04N5/76
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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公开(公告)号：US07476027B2
公开(公告)日：2009-01-13
申请号：US11751686
申请日：2007-05-22
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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100.发明申请公开(公告)号：US20080217548A1
公开(公告)日：2008-09-11
申请号：US12038346
申请日：2008-02-27
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。
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