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1. 发明授权

US08121256B2 Radiographic image data correction method and apparatus and radiography apparatus 有权
标题翻译：射线照相图像数据校正方法及装置及放射摄影装置
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。

2. 发明申请

US20100014772A1 Signal line correction method and apparatus 有权
标题翻译：信号线校正方法及装置
公开(公告)号：US20100014772A1
公开(公告)日：2010-01-21
申请号：US12458624
申请日：2009-07-17
申请人： Takao Kuwabara , Hideyuki Yamada
发明人： Takao Kuwabara , Hideyuki Yamada
IPC分类号： G06K9/40
CPC分类号： H04N5/3658 , H04N5/32
摘要： A method for use with a radiation image detector, including the steps of detecting a faulty signal line having a signal amount less than a predetermined threshold value based on radiation image signals read out from the detector, setting a signal line adjacent to the faulty signal line as an abnormal signal line and a signal line adjacent to the abnormal signal line and having a normal amount of signal as a reference signal line, calculating the difference between a signal read out by the abnormal signal line and a signal read out by the reference signal line as a correction amount, calculating a low frequency component correction amount by removing a high frequency component from the calculated correction amount, and performing a correction on the signal read out by the abnormal signal line by adding the calculated low frequency component correction amount to the signal.
摘要翻译：一种与放射线图像检测器一起使用的方法，包括以下步骤：基于从检测器读出的放射线图像信号检测信号量小于预定阈值的故障信号线，设置与故障信号线相邻的信号线作为异常信号线和与异常信号线相邻并且具有正常信号量作为参考信号线的信号线，计算由异常信号线读出的信号与由参考信号读出的信号之间的差异线作为校正量，通过从计算出的校正量中去除高频分量来计算低频分量校正量，并且对由异常信号线读出的信号进行校正，将计算出的低频分量校正量加到信号。

3. 发明授权

US08249322B2 Signal line correction method and apparatus 有权
标题翻译：信号线校正方法及装置
公开(公告)号：US08249322B2
公开(公告)日：2012-08-21
申请号：US12458624
申请日：2009-07-17
申请人： Takao Kuwabara , Hideyuki Yamada
发明人： Takao Kuwabara , Hideyuki Yamada
IPC分类号： G06K9/00
CPC分类号： H04N5/3658 , H04N5/32
摘要： A method for use with a radiation image detector, including the steps of detecting a faulty signal line having a signal amount less than a predetermined threshold value based on radiation image signals read out from the detector, setting a signal line adjacent to the faulty signal line as an abnormal signal line and a signal line adjacent to the abnormal signal line and having a normal amount of signal as a reference signal line, calculating the difference between a signal read out by the abnormal signal line and a signal read out by the reference signal line as a correction amount, calculating a low frequency component correction amount by removing a high frequency component from the calculated correction amount, and performing a correction on the signal read out by the abnormal signal line by adding the calculated low frequency component correction amount to the signal.
摘要翻译：一种与放射线图像检测器一起使用的方法，包括以下步骤：基于从检测器读出的放射线图像信号检测信号量小于预定阈值的故障信号线，设置与故障信号线相邻的信号线作为异常信号线和与异常信号线相邻并且具有正常信号量作为参考信号线的信号线，计算由异常信号线读出的信号与由参考信号读出的信号之间的差异线作为校正量，通过从计算出的校正量中去除高频分量来计算低频分量校正量，并且对由异常信号线读出的信号进行校正，将计算出的低频分量校正量加到信号。

4. 发明申请

US20090304151A1 Radiographic image data correction method and apparatus and radiography apparatus 有权
标题翻译：射线照相图像数据校正方法及装置及放射摄影装置
公开(公告)号：US20090304151A1
公开(公告)日：2009-12-10
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： G01N23/04 , H05G1/64 , G06K9/00
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。

5. 发明申请

US20120068079A1 RADIATION IMAGING APPARATUS AND STEREOSCOPIC IMAGE DISPLAY METHOD 审中-公开
标题翻译：放射成像装置和立体图像显示方法
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。

6. 发明申请

US20100252743A1 IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND INFORMATION STORAGE MEDIUM HAVING IMAGE PROCESSING PROGRAM STORED THEREIN 有权
标题翻译：图像处理设备，图像处理方法，图像处理程序和存储图像处理程序的信息存储介质
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。

7. 发明申请

US20080012967A1 DEFECTIVE-AREA CORRECTION APPARATUS, METHOD AND PROGRAM AND RADIATION DETECTION APPARATUS 审中-公开
标题翻译：缺陷区校正装置，方法与程序及辐射检测装置
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。

8. 发明申请

US20070096040A1 Radiographic image conversion panel and radiographic image acquisition system 失效
标题翻译：射线照相图像转换面板和放射摄影图像采集系统
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。

9. 发明授权

US07199389B2 Radiation image recording and read-out method and system 失效
标题翻译：辐射图像记录和读出方法及系统
公开(公告)号：US07199389B2
公开(公告)日：2007-04-03
申请号：US11091393
申请日：2005-03-29
申请人： Takao Kuwabara
发明人： Takao Kuwabara
IPC分类号： G03B42/08
CPC分类号： G03B42/08
摘要： A residual image signal, which represents a residual image remaining on a stimulable phosphor sheet having been subjected to an erasing operation, is acquired. A radiation image of an object is then recorded on the stimulable phosphor sheet, from which the residual image signal has been detected. A radiation image signal, which represents the radiation image of the object, is then acquired, the thus acquired radiation image signal containing a residual image signal, which represents the residual image. The residual image signal is subtracted from the radiation image signal, and a radiation image signal, which represents the radiation image of the object and which is free from the residual image signal, is acquired.
摘要翻译：获取残留图像信号，其表示残留在已经进行擦除操作的可激发的荧光体片上的残留图像。然后将物体的放射线图像记录在可刺激的磷光体片上，从中检测出残留图像信号。然后，获取表示对象的放射线图像的放射线图像信号，由此获取的包含残留图像信号的放射线图像信号，其表示残留图像。从放射线图像信号中减去残留图像信号，并且获取表示对象的放射线图像并且没有剩余图像信号的放射线图像信号。

10. 发明申请

US20060202136A1 Method of and system for obtaining radiation image signal 审中-公开
标题翻译：获取放射线图像信号的方法和系统
公开(公告)号：US20060202136A1
公开(公告)日：2006-09-14
申请号：US11370054
申请日：2006-03-08
申请人： Takao Kuwabara , Hiroyuki Karasawa
发明人： Takao Kuwabara , Hiroyuki Karasawa
IPC分类号： G01N23/04
CPC分类号： G01N23/04
摘要： A stimulable phosphor sheet is conveyed in a sub-scanning direction while projecting the stimulating light in the main scanning direction, an exposed area on the stimulable phosphor sheet is imaged on each light receiving portion of a line sensor which is formed by causing the same to correspond to a sub-scanning direction, the stimulated light emitted from the exposed area is photoelectrically converted by each light receiving portion to obtain a partial image signal, and an image signal representing the radiation image recorded on the stimulable phosphor sheet is obtained by summing the partial image signals obtained by the light receiving portions in each light receiving line arranged in the sub-scanning direction. Each partial image signal is obtained by converting the stimulated light received when the same area on the stimulable phosphor sheet is imaged on the light receiving portions which are arranged in the sub-scanning direction at different timings.
摘要翻译：可刺激的荧光体片在副扫描方向上被传送，同时在主扫描方向上投影刺激光，可刺激荧光粉片上的暴露区域成像在线传感器的每个光接收部分上，对应于副扫描方向，从曝光区域发射的受激光被每个光接收部分光电转换以获得部分图像信号，并且通过将表示记录在可刺激荧光粉片上的辐射图像的图像信号求和由沿副扫描方向配置的各受光线的受光部得到的部分图像信号。每个部分图像信号是通过将在可刺激的荧光体片上相同的区域成像时接收的受激光转换成在不同的定时沿副扫描方向排列的光接收部分而获得的。

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