公开(公告)号：US20090086915A1

公开(公告)日：2009-04-02

申请号：US12328302

申请日：2008-12-04

申请人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

发明人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

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。

公开(公告)号：US07491960B2

公开(公告)日：2009-02-17

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： G01N23/04

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 a 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），并执行刷新操作。

公开(公告)号：US20090014661A1

公开(公告)日：2009-01-15

申请号：US11814749

申请日：2007-01-24

申请人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama

IPC分类号： G01T1/20 ,  H01J31/49

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。

公开(公告)号：US20080279334A1

公开(公告)日：2008-11-13

申请号：US12175495

申请日：2008-07-18

申请人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

发明人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

IPC分类号： H05G1/64 ,  H05G1/54

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。

公开(公告)号：US07342221B2

公开(公告)日：2008-03-11

申请号：US10991436

申请日：2004-11-19

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： G12B13/00

CPC分类号： G01T1/2928 ,  A61B6/5258 ,  A61B6/583

摘要： A plurality of correction images are obtained while changing the radiation energy of an incident radiation in the absence of an object. Subsequently, an object image is obtained in the presence of the object by emitting the radiation to the object. Then, the object image is corrected by using a correction image obtained under a radiation energy condition closest to the radiation energy of the obtained object image.

摘要翻译： 在不存在物体的同时改变入射辐射的辐射能量的同时获得多个校正图像。 随后，通过向对象发射辐射来在对象的存在下获得对象图像。 然后，通过使用在最接近所获得的对象图像的辐射能量的辐射能量条件下获得的校正图像来校正对象图像。

公开(公告)号：US20070080299A1

公开(公告)日：2007-04-12

申请号：US11535726

申请日：2006-09-27

申请人： Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

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。

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。

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

IPC分类号： G03B42/02 ,  A61B6/00 ,  G01N23/04 ,  H04N5/232 ,  H04N5/32 ,  H04N5/335 ,  H04N5/361 ,  H04N5/378

CPC分类号： H04N5/32 ,  A61B6/00 ,  A61B6/405 ,  A61B6/482 ,  A61B6/585 ,  G01N23/04 ,  H04N5/3651

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。

公开(公告)号：US08818068B2

公开(公告)日：2014-08-26

申请号：US13395634

申请日：2010-09-14

申请人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato

发明人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Sho Sato

IPC分类号： G06K9/00 ,  H04N5/33 ,  G01T1/24

CPC分类号： H04N5/32 ,  G01T1/17 ,  H04N5/343 ,  H04N5/3454 ,  H04N5/374

摘要： An imaging apparatus includes a control unit and a detector that includes multiple pixels and that performs an image capturing operation to output image data corresponding to emitted radiation or light. The image capturing operation includes a first image capturing operation in which the detector is scanned in a first scanning area corresponding to part of the multiple pixels to output image data in the first scanning area and a second image capturing operation in which the detector is scanned in a second scanning area larger than the first scanning area to output image data in the second scanning area. The control unit causes the detector to perform an initialization operation to initialize the conversion element during a period between the first image capturing operation and the second image capturing operation in accordance with switching from the first scanning area to the second scanning area.

摘要翻译： 成像装置包括控制单元和包括多个像素的检测器，并且执行图像捕获操作以输出对应于所发射的辐射或光的图像数据。 图像拍摄操作包括第一图像拍摄操作，其中在与多个像素的一部分对应的第一扫描区域中扫描检测器，以输出第一扫描区域中的图像数据，以及第二图像捕获操作，其中检测器被扫描 大于第一扫描区域的第二扫描区域，以输出第二扫描区域中的图像数据。 根据从第一扫描区域到第二扫描区域的切换，控制单元使得检测器执行初始化操作以在第一图像捕获操作和第二图像捕获操作之间的期间初始化转换元件。

公开(公告)号：US08723996B2

公开(公告)日：2014-05-13

申请号：US12744124

申请日：2009-01-20

申请人： Keigo Yokoyama ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka

发明人： Keigo Yokoyama ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka

IPC分类号： H04N3/14 ,  H04N5/335

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。