公开(公告)号：US20110054943A1

公开(公告)日：2011-03-03

申请号：US12805938

申请日：2010-08-25

申请人： Yasunori Ohta ,  Tatsuo Heki ,  Takao Kuwabara ,  Nobuyuki Iwasaki ,  Tetsurou Kusunoki ,  Kimihiko Satoh ,  Naoyuki Nishino

发明人： Yasunori Ohta ,  Tatsuo Heki ,  Takao Kuwabara ,  Nobuyuki Iwasaki ,  Tetsurou Kusunoki ,  Kimihiko Satoh ,  Naoyuki Nishino

IPC分类号： G06Q50/00 ,  G06Q10/00

CPC分类号： A61B6/00 ,  A61B6/542 ,  A61B6/56 ,  G06Q50/24

摘要： When radiography is performed on a patient at a radiography apparatus, first, a past collected radiation dose for the patient and a past collected radiation dose for a region of the patient on which radiography will be performed are extracted from a database.Judgment is made as to whether the collected radiation doses are greater than or equal to respective set threshold values. If it is judged that at least one of the collected radiation doses is greater than or equal to the set threshold values, the radiography apparatus outputs an alert for a radiographer. If it is judged that the collected radiation doses are less than or equal to the set threshold values, radiography is started by the radiography apparatus.

摘要翻译： 当在放射线照相设备上对患者进行射线照相时，首先从数据库中提取对于患者的过去采集的辐射剂量以及将在其上进行射线照相术的患者的区域的过去采集的辐射剂量。 判断所收集的辐射剂量是否大于或等于相应设定的阈值。 如果判断所收集的辐射剂量中的至少一个大于或等于设定的阈值，则放射摄影装置输出针对放射技师的警报。 如果判定所收集的辐射剂量小于或等于设定的阈值，则由放射摄影装置开始射线照相。

公开(公告)号：US20120068079A1

公开(公告)日：2012-03-22

申请号：US13239009

申请日：2011-09-21

申请人： Toshitaka AGANO ,  Takao Kuwabara ,  Yasuko Yahiro ,  Yasunori Ohta ,  Akira Hasegawa

发明人： Toshitaka AGANO ,  Takao Kuwabara ,  Yasuko Yahiro ,  Yasunori Ohta ,  Akira Hasegawa

IPC分类号： G01T1/16

CPC分类号： G01V5/0058

摘要： A high quality stereo image is displayed by a radiation imaging apparatus that obtains an image for two dimensional observation and two images for stereo display while using a grid. An input section 7 receives input of a user's dominant eye. Radiation image data obtained by imaging with an imaging angle of 0° is employed for an image for the dominant eye during stereo image display, and radiation image data corresponding to the eye opposite the user's dominant eye, from between radiation image data obtained by imaging with an imaging angle of +4° or +4°, are employed for an image for the other eye, to display a stereo image of a breast on a monitor 9.

摘要翻译： 通过在使用网格时获得用于二维观察的图像和用于立体显示的两个图像的放射线成像装置显示高质量立体图像。 输入部分7接收用户主导眼睛的输入。 对于立体图像显示期间的主要眼睛的图像和与用户主导眼相反的眼睛的放射线图像数据，从通过成像获得的放射线图像数据与用 对于另一只眼睛的图像采用+ 4°或+ 4°的成像角度，在监视器9上显示乳房的立体图像。

公开(公告)号：US20120051502A1

公开(公告)日：2012-03-01

申请号：US13219529

申请日：2011-08-26

申请人： Yasunori OHTA ,  Wataru Ito ,  Masahiko Yamada ,  Takao Kuwabara ,  Takeshi Kamiya ,  Tetsuro Kusunoki

发明人： Yasunori OHTA ,  Wataru Ito ,  Masahiko Yamada ,  Takao Kuwabara ,  Takeshi Kamiya ,  Tetsuro Kusunoki

IPC分类号： A61B6/04

CPC分类号： A61B6/502 ,  A61B6/00 ,  A61B6/022 ,  A61B6/107 ,  A61B6/405 ,  A61B6/4452 ,  A61B6/4476

摘要： In a mammography system including a face guard, it is possible to prevent a human subject whose head is in close contact with the face guard from losing her posture and being in an unstable state. In a mammography system which includes a shield member for preventing radiation from being irradiated onto the face of the human subject, a radiation source which irradiates radiation is moved, such that, when radiation in two radiographing directions is irradiated from two focal positions distant from the chest wall of the human subject in a forward direction, the shield member is configured to be fixed at a predetermined position in the forward direction without being interlocking with the movement of the radiation source.

摘要翻译： 在包括脸部护理的乳房造影系统中，能够防止头部与脸部护罩紧密接触的人体对象失去其姿势而处于不稳定状态。 在包括用于防止辐射照射到人体对象的遮蔽部件的乳房摄影系统中，照射辐射的辐射源被移动，使得当两个放射线方向上的辐射从远离 人体受试者的前方向的胸壁，屏蔽构件被构造成在向前方向上固定在预定位置，而不与辐射源的移动互锁。

公开(公告)号：US20100252743A1

公开(公告)日：2010-10-07

申请号：US12671208

申请日：2008-07-15

申请人： Masaharu Ogawa ,  Nobuyuki Iwasaki ,  Takao Kuwabara

发明人： Masaharu Ogawa ,  Nobuyuki Iwasaki ,  Takao Kuwabara

IPC分类号： G01T1/24

CPC分类号： A61B6/4233 ,  A61B6/502 ,  A61B6/585 ,  G01T1/247 ,  H01L27/14623 ,  H01L27/14676 ,  H04N5/32 ,  H04N5/357

摘要： A first leakage current value output from each signal line is stored in a storage unit, with a charge corresponding to an emitted radiation being held in a radiographic image detector, when the radiation is uniformly emitted to the radiographic image detector. A second leakage current value is acquired which is output from each signal line, with a charge corresponding to the radiation dose being held in the radiographic image detector, when the radiation passing through an object is emitted to the radiographic image detector. When the first and second leakage current values are equal to each other for each line corresponding to each signal line, all pixels on the line are determined to belong to a background area (lines A and C). When the second leakage current value is smaller than the first leakage current value and larger than a predetermined value, it is determined that there are the object areas and the background areas on the line (lines B, D, and E), and the total number of pixels in the background area on the line is calculated from the ratio of the first leakage current value to the second leakage current value. In this way, the distribution of the object area and the background area in the image which is held in the radiographic image detector when the radiation passing through the object is emitted is estimated before the reading of the image from the radiographic image detector is completed.

摘要翻译： 当辐射被均匀地发射到放射线照相图像检测器时，从每个信号线输出的第一泄漏电流值被存储在存储单元中，其中对应于发射的辐射的电荷被保持在放射线照相图像检测器中。 当通过物体的辐射被发射到射线照相图像检测器时，获取从每个信号线输出的第二泄漏电流值，其中对应于辐射剂量的电荷被保持在放射线照相图像检测器中。 当对于每个信号线的每一行的第一和第二泄漏电流值彼此相等时，该行上的所有像素被确定为属于背景区域（行A和C）。 当第二漏电流值小于第一泄漏电流值并且大于预定值时，确定在线（线B，D和E）上存在物体区域和背景区域，并且总共 根据第一泄漏电流值与第二泄漏电流值的比率，计算线路背景区域中的像素数。 以这种方式，在从放射线照相图像检测器读取图像完成之前，估计当通过物体的辐射被发射时保持在放射线照相图像检测器中的图像中的对象区域和背景区域的分布。

公开(公告)号：US08288729B2

公开(公告)日：2012-10-16

申请号：US12671208

申请日：2008-07-15

申请人： Masaharu Ogawa ,  Nobuyuki Iwasaki ,  Takao Kuwabara

发明人： Masaharu Ogawa ,  Nobuyuki Iwasaki ,  Takao Kuwabara

IPC分类号： G01T1/24 ,  H01L25/00 ,  H01L27/00 ,  H01L27/146

CPC分类号： A61B6/4233 ,  A61B6/502 ,  A61B6/585 ,  G01T1/247 ,  H01L27/14623 ,  H01L27/14676 ,  H04N5/32 ,  H04N5/357

摘要： A first leakage current value output from each signal line is stored in a storage unit, with a charge corresponding to an emitted radiation being held in a radiographic image detector, when the radiation is uniformly emitted to the radiographic image detector. A second leakage current value is acquired which is output from each signal line, with a charge corresponding to the radiation dose being held in the radiographic image detector, when the radiation passing through an object is emitted to the radiographic image detector. When the first and second leakage current values are equal to each other for each line corresponding to each signal line, all pixels on the line are determined to belong to a background area (lines A and C).

摘要翻译： 当辐射被均匀地发射到放射线照相图像检测器时，从每个信号线输出的第一泄漏电流值被存储在存储单元中，其中对应于发射的辐射的电荷被保持在放射线照相图像检测器中。 当通过物体的辐射被发射到射线照相图像检测器时，获取从每个信号线输出的第二泄漏电流值，其中对应于辐射剂量的电荷被保持在放射线照相图像检测器中。 当对于每个信号线的每一行的第一和第二泄漏电流值彼此相等时，该行上的所有像素被确定为属于背景区域（行A和C）。

公开(公告)号：US08198596B2

公开(公告)日：2012-06-12

申请号：US12385349

申请日：2009-04-06

申请人： Takao Kuwabara ,  Nobuyuki Iwasaki

发明人： Takao Kuwabara ,  Nobuyuki Iwasaki

IPC分类号： G01T1/24 ,  H04N9/64 ,  G06K9/46

CPC分类号： G06T5/005 ,  G06T5/20 ,  G06T2207/10116

摘要： An imaging system comprises: an imaging unit for producing an image within a given field of view; an image defect detector for detecting a defective area from a first image that is produced by the imaging unit without a subject in the given field of view; a size enlarging unit for forming a deemed defective area having an enlarged size consisting of pixels of the first image corresponding to a defective area detected by the image defect detector and at least one of pixels adjacent to these pixels; and an image defect correcting unit for correcting a second image produced by the imaging unit with a subject located within the given view of field according to a deemed defective area formed by the size enlarging unit.

摘要翻译： 一种成像系统包括：用于在给定视场内产生图像的成像单元; 图像缺陷检测器，用于从给定视野中没有被摄体的成像单元产生的第一图像中检测缺陷区域; 用于形成具有由与由图像缺陷检测器检测到的缺陷区域对应的第一图像的像素组成的放大尺寸的认定缺陷区域和与这些像素相邻的像素中的至少一个的尺寸扩大单元; 以及图像缺陷校正单元，用于根据由所述尺寸放大单元形成的认定的缺陷区，用位于所述给定视场内的被摄体校正由所述摄像单元产生的第二图像。

公开(公告)号：US20090252397A1

公开(公告)日：2009-10-08

申请号：US12385349

申请日：2009-04-06

申请人： Takao Kuwabara ,  Nobuyuki Iwasaki

发明人： Takao Kuwabara ,  Nobuyuki Iwasaki

IPC分类号： G06K9/00

CPC分类号： G06T5/005 ,  G06T5/20 ,  G06T2207/10116

摘要： An imaging system comprises: an imaging unit for producing an image within a given field of view; an image defect detector for detecting a defective area from a first image that is produced by the imaging unit without a subject in the given field of view; a size enlarging unit for forming a deemed defective area having an enlarged size consisting of pixels of the first image corresponding to a defective area detected by the image defect detector and at least one of pixels adjacent to these pixels; and an image defect correcting unit for correcting a second image produced by the imaging unit with a subject located within the given view of field according to a deemed defective area formed by the size enlarging unit.

摘要翻译： 一种成像系统包括：用于在给定视场内产生图像的成像单元; 图像缺陷检测器，用于从给定视野中没有被摄体的成像单元产生的第一图像中检测缺陷区域; 用于形成具有由与由图像缺陷检测器检测到的缺陷区域对应的第一图像的像素组成的放大尺寸的认定缺陷区域和与这些像素相邻的像素中的至少一个的尺寸扩大单元; 以及图像缺陷校正单元，用于根据由所述尺寸放大单元形成的认定的缺陷区，用位于所述给定视场内的被摄体校正由所述摄像单元产生的第二图像。

公开(公告)号：US08121256B2

公开(公告)日：2012-02-21

申请号：US12457289

申请日：2009-06-05

申请人： Hideyuki Yamada ,  Takao Kuwabara

发明人： Hideyuki Yamada ,  Takao Kuwabara

IPC分类号： A61B6/00

CPC分类号： G06T5/002 ,  G06T5/004 ,  G06T5/50 ,  G06T2207/10116 ,  G06T2207/20216 ,  G06T2207/30068

摘要： Offset correction based on offset correction data is performed on radiographic image data that have been read out from a radiation image detector, and the offset correction data are updated. In the offset correction method, correction data for low-frequency components and correction data for high-frequency components, as the offset correction data, are generated based on offset image data that have been read out from the radiation image detector while the radiation image detector is not irradiated with radiation. Further, the correction data for low-frequency components and the correction data for high-frequency components are separately updated.

摘要翻译： 对已经从放射线图像检测器读出的放射线图像数据执行基于偏移校正数据的偏移校正，并且更新偏移校正数据。 在偏移校正方法中，基于从放射线图像检测器读出的偏移图像数据，生成用于低频分量的校正数据和用于高频分量的校正数据作为偏移校正数据，而放射线图像检测器 没有辐射照射。 此外，分别更新低频分量的校正数据和高频分量的校正数据。

公开(公告)号：US20080012967A1

公开(公告)日：2008-01-17

申请号：US11777670

申请日：2007-07-13

申请人： Takao Kuwabara

发明人： Takao Kuwabara

IPC分类号： H04N9/64

CPC分类号： H04N5/367 ,  G06T5/005 ,  G06T5/20 ,  G06T2207/10116 ,  G06T2207/30004 ,  H04N5/32

摘要： Correction is performed on the pixel values of a plurality of defective pixels forming a defective area of an image representing a subject image. The defective area is an area corresponding to a defective portion of a detector. A plurality of weighted normal pixel values are obtained by weighting the pixel value of each of normal pixels adjacent to the periphery of the defective area for each pair of a correction-target defective pixel and each of the normal pixels using a weighting coefficient. The weighting coefficient becomes smaller as a distance between the defective pixel and the normal pixel becomes longer. Then, an average value of the plurality of weighted normal pixel values is calculated, and the pixel value of the correction-target defective pixel is corrected using the calculated average value. This process is performed on each of the defective pixels.

摘要翻译： 对形成表示被摄体图像的图像的缺陷区域的多个缺陷像素的像素值进行校正。 缺陷区域是与检测器的缺陷部分对应的区域。 通过使用加权系数对每对校正对象缺陷像素和每个正常像素加权与缺陷区域的周围相邻的每个正常像素的像素值，从而获得多个加权法线像素值。 随着缺陷像素和正常像素之间的距离变长，加权系数变小。 然后，计算多个加权法线像素值的平均值，并且使用所计算的平均值来校正校正对象缺陷像素的像素值。 对每个缺陷像素执行该处理。

公开(公告)号：US20070096040A1

公开(公告)日：2007-05-03

申请号：US11589219

申请日：2006-10-30

申请人： Ken Hasegawa ,  Seiji Tazaki ,  Takao Kuwabara ,  Tatsuya Taneichi

发明人： Ken Hasegawa ,  Seiji Tazaki ,  Takao Kuwabara ,  Tatsuya Taneichi

IPC分类号： G03B42/08

CPC分类号： G03B42/02

摘要： The radiographic image conversion panel includes a recording layer formed of a first accumulative phosphor that is irradiated with a radiation as a first primarily exciting light beam to excite primarily and accumulate energy, and is irradiated with a first secondarily exciting light beam to excite secondarily and generate a stimulating light beam and a correction marker for detecting a position formed of a second accumulative phosphor that is irradiated with a second primarily exciting light beam to excite primarily and accumulate the energy, and is irradiated with a second secondarily exciting light beam to excite secondarily and generate light with a wavelength shorter than a wavelength of the first secondarily exciting light beam. The radiographic image acquisition system uses the radiographic image conversion panel.

摘要翻译： 射线照相图像转换面板包括由第一累积荧光体形成的记录层，该第一累积荧光体照射作为第一主要激发光束的辐射，以主要激发并积聚能量，并且用第二次激励光束照射二次激发并产生 刺激光束和用于检测由第二主激励光束照射的第二累积荧光体形成的位置的校正标记，以主要地激发并累积能量，并且用第二次激励光束照射二次激发， 产生波长短于第一次要激发光束的波长的光。 射线照相图像采集系统使用放射照相图像转换面板。