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11. 发明授权

US4571494A Multi-channel radiation detector array 失效
标题翻译：多通道辐射探测器阵列
公开(公告)号：US4571494A
公开(公告)日：1986-02-18
申请号：US480271
申请日：1983-03-30
申请人： Masayuki Nishiki , Toshihiro Rifu
发明人： Masayuki Nishiki , Toshihiro Rifu
IPC分类号： G01N23/04 , A61B6/03 , G01T1/24 , G01T1/29 , H01J47/02 , H01L31/115
CPC分类号： H01L31/115 , G01T1/2928 , H01J47/02
摘要： An X-ray detector has a plurality of detector units and a pair of support members. Each detector unit has a base plate, a detector element secured to the base plate, and a retaining plate supporting the detector element. The base plate has a signal line and a ground line for delivering an electrical signal from the detector element. The retaining plate is positioned parallel to the detector element. The support members are set apart and extend along an arc the center of which is an X-ray source. Each support member has a plurality of slits (grooves) cut in the face facing the other support member and juxtaposed at predetermined intervals along said arc. The end portions of each retaining plate are fitted in one slit of one of the support members and the corresponding slit of the other support member, respectively. Therefore, the detector units are supported by the support members and the detector elements are juxtaposed along said arc and set parallel to the X-ray beams from the X-ray source.
摘要翻译： X射线检测器具有多个检测器单元和一对支撑构件。每个检测器单元具有基板，固定到基板的检测器元件和支撑检测器元件的保持板。基板具有用于传送来自检测器元件的电信号的信号线和接地线。保持板平行于检测器元件定位。支撑构件分开并沿着其中心为X射线源的弧延伸。每个支撑构件具有在朝向另一支撑构件的面中切割并沿着所述弧以预定间隔并置的多个狭缝（凹槽）。每个保持板的端部分别装配在一个支撑构件的一个狭缝和另一个支撑构件的相应的狭缝中。因此，检测器单元由支撑构件支撑，并且检测器元件沿着所述弧并置并且平行于来自X射线源的X射线束设置。

12. 发明申请

US20100142792A1 X-RAY DIAGNOSIS APPARATUS AND IMAGE PROCESSING APPARATUS 有权
标题翻译： X射线诊断装置和图像处理装置
公开(公告)号：US20100142792A1
公开(公告)日：2010-06-10
申请号：US12629351
申请日：2009-12-02
申请人： Takuya SAKAGUCHI , Kunio Shiraishi , Masayuki Nishiki , Kyojiro Nambu
发明人： Takuya SAKAGUCHI , Kunio Shiraishi , Masayuki Nishiki , Kyojiro Nambu
IPC分类号： G06K9/62
CPC分类号： A61B6/03 , A61B6/00 , G06T5/002 , G06T5/20 , G06T5/50 , G06T7/73 , G06T2207/10016 , G06T2207/10116 , G06T2207/30048 , G06T2207/30052 , G06T2207/30101
摘要： When a plurality of X-ray images in a time sequence is stored in an image data storing unit (25), a marker coordinate detecting unit (26a) detects coordinates of a stent marker in each X-ray image, and a motion vector calculating unit (26b) calculates, with coordinates of the stent marker detected in a first frame as reference coordinates, a motion vector of the coordinates of the stent marker detected in each X-ray image of a second and subsequent frames with respect to the reference coordinates. Then, a filter application range determining unit (26c) moves and determines an application range of a smoothing filter in each X-ray image based on the motion vector, and the filtered image generating unit (26d) generates a filtered image by performing a process by the smoothing filter between application ranges determined in a process target image and a reference image.
摘要翻译：当时间序列中的多个X射线图像被存储在图像数据存储单元（25）中时，标记坐标检测单元（26a）检测每个X射线图像中的支架标记的坐标，并且计算运动矢量单元（26b）以第一帧中检测到的支架标记的坐标作为参考坐标，计算在相对于参考坐标的第二帧和后续帧的每个X射线图像中检测到的支架标记的坐标的运动矢量。然后，滤波器应用范围确定单元（26c）基于运动矢量移动并确定每个X射线图像中的平滑滤波器的应用范围，并且滤波图像生成单元（26d）通过执行处理来生成滤波图像通过在处理目标图像中确定的应用范围和参考图像之间的平滑滤波器。

13. 发明授权

US6163029A Radiation detector, radiation detecting method and X-ray diagnosing apparatus with same radiation detector 有权
标题翻译：辐射检测器，放射线检测方法和具有相同辐射探测器的X射线诊断装置
公开(公告)号：US6163029A
公开(公告)日：2000-12-19
申请号：US158285
申请日：1998-09-22
申请人： Shinichi Yamada , Michitaka Honda , Masayuki Nishiki , Kunio Aoki , Takuya Sakaguchi
发明人： Shinichi Yamada , Michitaka Honda , Masayuki Nishiki , Kunio Aoki , Takuya Sakaguchi
IPC分类号： G01T1/20 , G01T1/24
CPC分类号： G01T1/2018 , G01T1/247
摘要： According to information input through a keyboard, an X-ray irradiation condition selecting portion selects an X-ray irradiation condition, retrieves a correspondence table according to this X-ray irradiation condition so as to read out a gain control state suitable for an irradiation condition, and drives an analog SW setting portion. According to a signal from the analog SW setting portion, an integration capacity of an initial stage integration amplifier is changed over. Further, according to other mode, accumulated electric charge Q of a picture element Cp is read out on a signal line and converted to a voltage Vo by the integration amplifier. By appropriately determining a sampling time by a sample/hold circuit after electric charge is read out, an influence of a switching element resistance can be excluded from a voltage Vx. Therefore, the voltage Vx can be sample held stably. Further, because the integration circuit has a characteristic of damping a high frequency noise generated in the integration amplifier, the S/N ratio of the voltage Vx can be improved.
摘要翻译：根据通过键盘输入的信息，X射线照射条件选择部分选择X射线照射条件，根据该X射线照射条件检索对应表，以读出适合于照射条件的增益控制状态，并驱动模拟SW设置部分。根据来自模拟开关设定部的信号，转换初级积分放大器的积分能力。此外，根据其他模式，在信号线上读出图像元素Cp的累积电荷Q，并通过积分放大器转换为电压Vo。通过在读取电荷后适当地确定采样/保持电路的采样时间，可以从电压Vx中排除开关元件电阻的影响。因此，可以将电压Vx稳定地取样。此外，由于积分电路具有抑制积分放大器中产生的高频噪声的特性，因此可以提高电压Vx的S / N比。

14. 发明授权

US5666395A X-ray diagnostic apparatus 失效
标题翻译： X光诊断仪
公开(公告)号：US5666395A
公开(公告)日：1997-09-09
申请号：US715086
申请日：1996-09-17
申请人： Akira Tsukamoto , Masayuki Nishiki , Koichiro Nabuchi , Shin-ichi Yamada , Tohru Saisu , Takayuki Tomisaki , Manabu Tanaka , Seiichiro Nagai
发明人： Akira Tsukamoto , Masayuki Nishiki , Koichiro Nabuchi , Shin-ichi Yamada , Tohru Saisu , Takayuki Tomisaki , Manabu Tanaka , Seiichiro Nagai
IPC分类号： A61B6/00 , A61N5/10 , G01T1/29 , G21K1/02 , G21K1/00
CPC分类号： G01T1/2928 , A61B6/5258 , A61N5/103 , G21K1/025
摘要： It is an object of the invention to provide an X-ray diagnosis apparatus having an X-ray plane detector capable of removing the influence of a scattered X-ray by using a grid and also preventing a Moire image. An X-ray image transmitted through a target object is sensed by a plane detector in units of pixels which are two-dimensionally arranged at a predetermined pitch. A scattered X-ray incident on the plane detector is removed by a scattered ray removing grid having plate-like X-ray shielding members and arranged on an X-ray incident side of the plane detector. The X-ray shielding members are arranged such that an X-ray shielding pattern on the X-ray incident surface of the plane detector has a pitch corresponding to an integer fraction of the arrangement pitch of the pixels. When a steady positional relationship is kept between the pitch of the X-ray detection elements and the period of the fringe pattern of the X-ray which is shielded by the grid, a Moire image can be prevented.
摘要翻译：本发明的目的是提供一种具有X射线平面检测器的X射线诊断装置，该X射线平面检测器能够通过使用网格去除散射X射线的影响，并且还防止Moir + E，acu + EE图像。通过目标物体发射的X射线图像由平面检测器以以预定间距二维排列的像素为单位感测。通过具有板状X射线屏蔽部件的散射射线去除栅极去除入射在平面检测器上的散射X射线，并布置在平面检测器的X射线入射侧。 X射线屏蔽构件被布置成使得平面检测器的X射线入射表面上的X射线屏蔽图案具有对应于像素的排列间距的整数分数的间距。当在X射线检测元件的间距与由栅格屏蔽的X射线的条纹图案的周期之间保持稳定的位置关系时，可以防止Moir + E，acu + EE图像。

15. 发明授权

US5583905A X-ray imaging apparatus capable of eliminating unwanted X-ray image signal components 失效
标题翻译：能够消除不想要的X射线图像信号分量的X射线成像装置
公开(公告)号：US5583905A
公开(公告)日：1996-12-10
申请号：US195054
申请日：1994-02-14
申请人： Masayuki Nishiki , Yoshio Taniguchi
发明人： Masayuki Nishiki , Yoshio Taniguchi
IPC分类号： A61B6/00 , H04N5/32 , H05G1/60 , H05G1/70 , H05G1/64
CPC分类号： H04N5/32 , H05G1/60 , H05G1/70
摘要： In an X-ray imaging apparatus, unwanted electron charges caused by pulsatory X-ray trailing edges are eliminated from an X-ray image signal of a biological body under medical examination. The X-ray imaging apparatus comprises: an X-ray generator for generating a plurality of pulsatory X-ray beams; an X-ray controlling unit for supplying an X-ray projection controlling signal to the X-ray generator in order to project an X-ray pulse beam having a predetermined pulse width to a biological body under medical examination from the X-ray generator, thereby producing an X-ray image of the biological body under medical examination; an optical converter for converting the X-ray image into a corresponding optical X-ray image signal of the biological body under medical examination; an imaging unit for imaging the optical X-ray image signal derived from the optical converter to store the imaged optical X-ray image signal as electron charges therein; a driving unit for driving the imaging unit in such a manner that only electron charges produced while projecting the X-ray pulse having the predetermined pulse width to the biological body in response to the X-ray projection controlling signal, are read out as an effective X-ray image signal of the biological body under medical examination; and, a display unit for displaying thereon an effective X-ray image of the biological body under medical examination in response to the effective X-ray image signal.
摘要翻译：在X射线成像装置中，从体检的生物体的X射线图像信号中消除由脉动X射线后缘引起的不希望的电子电荷。 X射线成像装置包括：X射线发生器，用于产生多个脉动X射线束; X射线控制单元，用于向X射线发生器提供X射线投射控制信号，以便将从具有预定脉冲宽度的X射线脉冲束投射到体格检查的生物体上，从而在体格检查下产生生物体的X射线图像; 光学转换器，用于在体格检查下将X射线图像转换成生物体的对应的光学X射线图像信号; 成像单元，用于对从光转换器获得的光学X射线图像信号进行成像，以将成像的光学X射线图像信号作为电子电荷存储; 驱动单元，用于以这样一种方式驱动摄像单元，以便仅当将具有预定脉冲宽度的X射线脉冲投射到生物体上时产生的电子电荷作为响应于X射线投影控制信号而被产生，作为有效的身体检查下生物体的X射线图像信号; 以及显示单元，用于响应于有效X射线图像信号，在体格检查下显示生物体的有效X射线图像。

16. 发明授权

US5420431A Imaging apparatus using multiple image signal read out lines with improved image quality 失效
标题翻译：使用多个图像信号的成像装置读出具有改善的图像质量的线
公开(公告)号：US5420431A
公开(公告)日：1995-05-30
申请号：US96274
申请日：1993-07-26
申请人： Masayuki Nishiki
发明人： Masayuki Nishiki
IPC分类号： A61B6/00 , H04N5/32 , H05G1/60 , A61B1/04 , H05G1/64
CPC分类号： H04N5/37213 , G06T5/20 , H04N5/205 , H04N5/32 , H04N5/3728 , H05G1/60 , G06T2207/10116 , G06T2207/30004
摘要： An imaging apparatus using multiple image signal read out lines with an improved image quality, capable of preventing the lowering of the resolution and the appearance of the ringing artifact, as well as the appearance of the false image in a form of vertical stripes, which is particularly suitable for the application in the X-ray diagnostic apparatus. The imaging apparatus is equipped with an imaging element for receiving optical image data of an imaging target and converting the received optical image data into electric signals, having a plurality of read out lines for outputting the obtained electric signals; a mixer for mixing the electric signals transmitted through the read out lines to obtain image data in an appropriately rearranged order; a digital low pass filter for digitally removing at least one specific frequency component from the image data obtained by the mixer to obtain display image data; and a display device for displaying the display image data obtained by the digital low pass filter.
摘要翻译：使用具有改善的图像质量的多个图像信号读出线的成像装置，其能够防止分辨率的降低和振铃伪像的出现，以及垂直条纹形式的假图像的出现，其是特别适用于X射线诊断装置的应用。成像装置配备有用于接收成像目标的光学图像数据并将接收的光学图像数据转换为电信号的成像元件，具有用于输出获得的电信号的多条读出线; 混合器，用于混合通过读出线传输的电信号，以适当重新排列的顺序获得图像数据; 数字低通滤波器，用于从由混频器获得的图像数据中数字地去除至少一个特定频率分量，以获得显示图像数据; 以及显示装置，用于显示由数字低通滤波器获得的显示图像数据。

17. 发明授权

US5406610A X-ray diagnostics apparatus with correction means 失效
标题翻译：具有校正装置的X射线诊断装置
公开(公告)号：US5406610A
公开(公告)日：1995-04-11
申请号：US159307
申请日：1993-11-30
申请人： Masayuki Nishiki
发明人： Masayuki Nishiki
IPC分类号： A61B6/00 , H04N5/32 , H05G1/60 , H04N5/321 , H01J31/50
CPC分类号： H04N5/3653 , H04N5/32 , H05G1/60
摘要： An X-ray diagnostics apparatus in which sensitivity of an overlapped image is uniform everywhere. The X-ray diagnostics apparatus includes: a first image sensing device which senses analog image; a first A-D converter which converts the analog image obtained by the first image sensing device to a digital image; a first memory which stores digital-converted image data obtained by the first A-D converter; a second image sensing device which senses an analog image; a second A-D converter which converts the analog image obtained by the second image sensing device to a digital image; a second memory which stores digital-converted image data obtained by the second A-D converter; a divider unit which generates coefficient in which the image data stored in the first memory is divided by the image data stored in the second memory; line memory which stores the generated coefficient; and composite image memory which overlapps image data obtained by the first memory and the second memory in a manner that the coefficient is multiplied to the image data in the second memory for each line.
摘要翻译：一种X射线诊断装置，其中重叠图像的灵敏度在任何地方均匀。 X射线诊断装置包括：感测模拟图像的第一图像感测装置; 第一A-D转换器，其将由第一图像感测装置获得的模拟图像转换为数字图像; 存储由第一A-D转换器获得的数字转换图像数据的第一存储器; 感测模拟图像的第二图像感测装置; 第二A-D转换器，其将由第二图像感测装置获得的模拟图像转换为数字图像; 第二存储器，其存储由所述第二A-D转换器获得的数字转换图像数据; 一个除法器单元，其产生其中存储在第一存储器中的图像数据被存储在第二存储器中的图像数据划分的系数; 存储所生成的系数的行存储器; 以及合成图像存储器，其以与系数乘以第二存储器中的图像数据的方式对应于由第一存储器和第二存储器获得的图像数据重叠。

18. 发明授权

US5268757A High speed imaging apparatus without lowering of dynamic range 失效
标题翻译：高速成像设备，不降低动态范围
公开(公告)号：US5268757A
公开(公告)日：1993-12-07
申请号：US717806
申请日：1991-06-19
申请人： Seiichiro Nagai , Masayuki Nishiki
发明人： Seiichiro Nagai , Masayuki Nishiki
IPC分类号： A61B6/00 , H04N5/32 , H04N5/341 , H04N5/355 , H04N5/365 , H04N5/372 , H04N5/378 , H04N7/12 , H04N7/04
CPC分类号： H04N5/32 , H04N5/335
摘要： A high speed imaging apparatus capable of speeding up the imaging rate, without causing the lowering of the dynamic range of the image data. The imaging apparatus includes a first signal processing unit for dividing each channel of the image information signals outputted from the imaging element into a plurality of signal channels; a plurality of A/D converters, each of which is provided in correspondence to each one of the signal channels of the image information signals and converts the image signals of respective one of the signal channels into digital image signals; and a second signal processing unit for combining the digital image signals obtained by the A/D converters into a single channel of digital image signals representing the image to be taken.
摘要翻译：能够加快摄像速度而不会降低图像数据的动态范围的高速摄像装置。成像装置包括：第一信号处理单元，用于将从成像元件输出的图像信息信号的每个通道分成多个信号通道; 多个A / D转换器，每个A / D转换器对应于图像信息信号的信号通道中的每一个被提供，并将各个信号通道的图像信号转换为数字图像信号; 以及第二信号处理单元，用于将由A / D转换器获得的数字图像信号组合成表示要拍摄的图像的数字图像信号的单个通道。

19. 发明授权

US5027380A Diagnostic X-ray apparatus 失效
标题翻译：诊断X光装置
公开(公告)号：US5027380A
公开(公告)日：1991-06-25
申请号：US422661
申请日：1989-10-17
申请人： Masayuki Nishiki
发明人： Masayuki Nishiki
IPC分类号： A61B6/00 , A61B6/02 , A61B6/03 , H04N5/268
CPC分类号： A61B6/4225 , A61B6/032
摘要： In an X-ray fluoroscopic apparatus, a diaphragm is inserted in an X-ray emitted from an X-ray tube onto an object to be examined, and only a desired slice of the object is exposed with X-rays emitted from a large number of directions. The X-ray transmitted through the object is caused to be incident on an image intensifier, and an optical image therefrom is incident on a TV camera formed of a solid-state image pickup device, such as a CCD, through an optical system. An output from the TV camera is supplied to a memory, X-ray projection data from a large number of directions are stored in the memory, and an output from the memory is supplied to an image reconstruction processor, thus reconstructing a tomogram. The optical image from the image intensifier is incident on only one or a plurality of horizontal scanning lines corresponding to the slice in an imaging area of the TV camera. Therefore, pixel data in a region except for the region corresponding to the slice are vertically transferred at high speed, are accumulated in a horizontal transfer CCD, are output from the horizontal transfer CCD, and are discharged without being written in the memory. The pixel data of the slice are vertically transferred at normal speed, are output from the horizontal transfer CCD line by line, and are written in the memory.

20. 发明授权

US4991192A X-ray imaging apparatus 失效
标题翻译： X射线成像装置
公开(公告)号：US4991192A
公开(公告)日：1991-02-05
申请号：US357753
申请日：1989-05-26
申请人： Masayuki Nishiki
发明人： Masayuki Nishiki
IPC分类号： A61B6/00 , H04N5/32 , H05G1/60 , H05G1/64
CPC分类号： H05G1/60 , H04N5/32
摘要： An X-ray imaging apparatus comprises an X-ray generator, an image intensifier for converting an X-ray image of a subject under examination to an optical image, a solid state image sensor for picking up the optical image of the image intensifier, a driver circuit for driving the solid state image sensor and a television monitor for visually displaying an image signal obtained from the solid state image sensor as an X-ray optical image. The X-ray generator is controlled such that an X-ray pulse is not emitted during an interval in which the solid state image sensor transfers charges from charge storage sections to charge transfer sections.
摘要翻译：一种X射线成像装置，包括：X射线发生器，用于将检查对象的X射线图像转换为光学图像的图像增强器;用于拾取图像增强器的光学图像的固态图像传感器; 用于驱动固态图像传感器的驱动电路和用于可视地显示从固态图像传感器获得的图像信号的电视监视器作为X射线光学图像。控制X射线发生器，使得在固态图像传感器将电荷从电荷存储部分转移到电荷转移部分的间隔期间不发射X射线脉冲。

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