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11. 发明授权

US4721856A Mammographic radiation image recording and read-out apparatus 失效
标题翻译：乳房放射线图像记录和读出装置
公开(公告)号：US4721856A
公开(公告)日：1988-01-26
申请号：US792386
申请日：1985-10-29
申请人： Shigeru Saotome , Masamitsu Ishida
发明人： Shigeru Saotome , Masamitsu Ishida
IPC分类号： G01T1/00 , A61B6/00 , A61B6/02 , G03B42/02 , G03C5/16
CPC分类号： G03B42/02
摘要： A radiation image recording and read-out apparatus suitable for use in mammography comprises, as integrated into a single unit, a mammographic image recording section, an image read-out and erasing section and a circulation and conveyance system for circulating at least one stimulable phosphor sheet through the two sections for repeated recording and read-out of radiation images. The mammographic image recording section is attached to the image read-out and erasing section to be rotatable and vertically slidable relative thereto so as to permit free selection of the recording position during mammography. The mammographic image recording section and the image read-out and erasing section have respective slots which come into alignment at a prescribed position of the mammographic image recording section relative to the image read-out and erasing section and the stimulable phosphor sheet is transferred between the two sections by the conveyance system when the mammographic image recording section is in the prescribed position.
摘要翻译：适用于乳房X线照相术的放射线图像记录和读出装置包括集成到单个单元中的乳房照相图像记录部分，图像读出和擦除部分以及用于使至少一个可刺激的荧光体循环的循环和输送系统通过这两个部分的片材重复记录和读取辐射图像。乳房照相图像记录部分附接到图像读出和擦除部分，以相对于其可旋转和垂直滑动，以便允许在乳房X光照相术期间自由选择记录位置。乳房照相图像记录部分和图像读出和擦除部分具有相对于图像读出和擦除部分在乳房照相图像记录部分的规定位置处对准的各个狭缝，并且可刺激的荧光体片材在当乳房照相图像记录部分处于规定位置时，通过传送系统的两个部分。

12. 发明授权

US5796865A Gradation correcting method and apparatus 失效
标题翻译：梯度校正方法和装置
公开(公告)号：US5796865A
公开(公告)日：1998-08-18
申请号：US474729
申请日：1995-06-07
申请人： Tatsuya Aoyama , Wataru Ito , Shigeru Saotome
发明人： Tatsuya Aoyama , Wataru Ito , Shigeru Saotome
IPC分类号： G06T5/40 , G06K9/00 , G06K9/38
CPC分类号： G06T5/009
摘要： A fundamental gradation curve is enlarged or reduced such that the minimum density and the maximum density represented by the fundamental gradation curve may be changed respectively to a desired minimum density and a desired maximum density. The enlarged or reduced fundamental gradation curve is translated such that a point corresponding to a predetermined density may be shifted to a point representing a desired density. The translated fundamental gradation curve is rotated around the point corresponding to the desired density such that this point may represent a desired contrast. The enlarged or reduced fundamental gradation curve and the rotated fundamental gradation curve are weighted and added such that the minimum density and the maximum density represented by the rotated fundamental gradation curve may be changed respectively to the desired minimum density and the desired maximum density, and such that the point corresponding to the desired density may represent the desired density and the desired contrast. A desired gradation curve is thereby obtained.
摘要翻译：基本灰度曲线被放大或缩小，使得由基本灰度曲线表示的最小浓度和最大浓度可以分别改变为期望的最小浓度和期望的最大浓度。将扩大或缩小的基本灰度曲线平移，使得对应于预定浓度的点可以移位到表示期望密度的点。转换的基本灰度曲线围绕与期望的密度相对应的点旋转，使得该点可以表示期望的对比度。将放大或缩小的基本灰度曲线和旋转的基本灰度曲线加权并相加，使得由旋转的基本灰度曲线表示的最小密度和最大密度可以分别改变为期望的最小密度和期望的最大密度，并且等等对应于所需密度的点可以表示期望的密度和期望的对比度。由此获得期望的灰度曲线。

13. 发明授权

US5352903A Radiation image read-out apparatus 失效
标题翻译：辐射图像读出装置
公开(公告)号：US5352903A
公开(公告)日：1994-10-04
申请号：US208380
申请日：1994-03-10
申请人： Katsuhiro Kohda , Shigeru Saotome
发明人： Katsuhiro Kohda , Shigeru Saotome
IPC分类号： A61B6/00 , G01T1/29 , G03B42/02 , H04N1/04 , G01N23/04
CPC分类号： G01T1/2014
摘要： A radiation image read-out apparatus comprises a single light guide member constituted of a light guiding material. The light guide member comprises two input end faces for collecting light, which is emitted along a scanning line of stimulating rays and from two surfaces of a stimulable phosphor sheet having a radiation image stored thereon, and output end faces for radiating out the light, which has entered into the light guide member from the two input end faces. A single photodetector is located in close contact with the output end faces and photoelectrically detects the light radiated out of the light guide member. The input end faces of the light guide member comprise a first input end face for collecting the light, which is emitted from the front surface of the stimulable phosphor sheet, and a second input end face for collecting the light, which is emitted from the back surface of the stimulable phosphor sheet. The first and second input end faces of the light guide member stand facing the same scanning line.
摘要翻译：放射线图像读取装置包括由导光材料构成的单个导光构件。导光构件包括两个输入端面，用于收集沿着刺激光线的扫描线发射的光，以及从其上存储有放射图像的可刺激荧光粉片的两个表面和用于辐射出光的输出端面，已经从两个输入端面进入导光构件。单个光电检测器位于与输出端面紧密接触的位置，并且光电检测从导光部件射出的光。导光构件的输入端面包括用于收集从可刺激的荧光体片的前表面发射的光的第一输入端面和用于收集从背面发射的光的第二输入端面可刺激的荧光粉片的表面。导光构件支架的第一和第二输入端面面向相同的扫描线。

14. 发明授权

US5307105A Photosensitive material drying device 失效
标题翻译：感光材料干燥装置
公开(公告)号：US5307105A
公开(公告)日：1994-04-26
申请号：US956971
申请日：1992-10-06
申请人： Shigeru Saotome , Ichizo Toya
发明人： Shigeru Saotome , Ichizo Toya
IPC分类号： F26B23/04 , G03D15/02 , G03D13/00
CPC分类号： G03D15/022
摘要： A photosensitive material drying device having a plurality of far infrared radiation heaters disposed in facing relationship so as to meet at right angles to the direction in which an exposed film is conveyed. The density of the film is measured before the film is heated by the far infrared radiation heaters. Upon heating of the film by the far infrared radiation heaters, the surface temperature of each of the far infrared radiation heaters is changed by a variable resistor in accordance with the measured density to thereby vary the amount of heat applied to the film. It is therefore possible to satisfactorily dry the film in accordance with a variation in the density of the film.
摘要翻译：一种感光材料干燥装置，其具有多个远红外线辐射加热器，所述多个远红外线辐射加热器以面对的关系设置成与被曝光胶片的传送方向成直角相交。在膜被远红外辐射加热器加热之前测量膜的密度。在通过远红外线辐射加热器加热膜时，根据测量的密度，通过可变电阻器改变每个远红外线辐射加热器的表面温度，从而改变施加到膜上的热量。因此，可以根据膜的密度的变化令令人满意地干燥膜。

15. 发明授权

US4977322A Method and apparatus for minimizing image signal noise, and radiation image read-out method and apparatus 失效
标题翻译：用于使图像信号噪声最小化的方法和装置，以及放射线图像读出方法和装置
公开(公告)号：US4977322A
公开(公告)日：1990-12-11
申请号：US31740
申请日：1987-03-30
申请人： Toshitaka Agano , Shigeru Saotome
发明人： Toshitaka Agano , Shigeru Saotome
IPC分类号： H04N1/409
CPC分类号： H04N1/409
摘要： A method of minimizing image signal noise comprises the steps of feeding an image representing an image to a high-frequency component decreasing device for arbitarily decreasing a high-frequency component, detecting the level of the image signal, and decreasing the high-frequency component of the image signal by the high-frequency component decreasing device in accordance with a decrease in the level of the image signal. A radiation image read-out method for exposing a stimulable phosphor sheet carrying a radiation image stored thereon to stimulating rays which cause the stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and photoelectrically detecting the emitted light to obtain an image signal representing the radiation image comprises the steps of detecting the level of radiation energy stored on the stimulable phosphor sheet, and decreasing the high-frequency component of the image signal by the high-frequency component decreasing device in accordance with a decrease in the level of the stored radiation energy.
摘要翻译：减少图像信号噪声的方法包括以下步骤：将表示图像的图像馈送到高频分量降低装置，用于任意降低高频分量，检测图像信号的电平，以及降低图像信号的高频分量根据图像信号的电平的降低，通过高频分量降低装置的图像信号。一种放射图像读出方法，用于使携带其上存在的放射线图像的可刺激的荧光体片曝光，以刺激使可激发的荧光粉片与所存储的辐射能量成比例地发光的光线，并且光电检测所发射的光以获得图像信号表示放射线图像的步骤包括以下步骤：检测存储在可刺激荧光粉片上的辐射能量的水平，并且通过高频分量降低装置降低图像信号的高频分量，储存辐射能量。

16. 发明授权

US4870277A Radiation image read-out method and apparatus, and radiation image read-out and reproducing method and apparatus 失效
公开(公告)号：US4870277A
公开(公告)日：1989-09-26
申请号：US316833
申请日：1989-02-28
申请人： Shigeru Saotome , Nobuyoshi Nakajima
发明人： Shigeru Saotome , Nobuyoshi Nakajima
IPC分类号： G01T1/29 , H04N1/40
CPC分类号： H04N1/40056 , G01T1/2014
摘要： In a radiation image read-out method and apparatus, a stimulable phosphor sheet carrying a radiation image stored thereon is exposed to stimulating rays which cause the stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and the emitted light is photoelectrically detected to obtain an image signal representing the radiation image. Stimulating rays are made to pass through a beam diameter adjusting device, and the level of the stored radiation energy is detected. The beam diameter of stimulating rays is expanded by the beam diameter adjusting device as the level of the stored radiation energy decreases. In a radiation image read-out and reproducing method, a photosensitive material is exposed to a recording beam modulated with the read-out image signal for recording the radiation image thereon. The recording beam is made to pass through a beam diameter adjusting device, and the beam diameter of the recording beam is expanded by the beam diameter adjusting device as the level of the stored radiation energy decreases.

17. 发明授权

US4851675A Radiation image read-out method and apparatus 失效
标题翻译：辐射图像读出方法和装置
公开(公告)号：US4851675A
公开(公告)日：1989-07-25
申请号：US920179
申请日：1986-10-17
申请人： Shigeru Saotome , Masamitsu Ishida , Kazuo Shimura , Hideo Watanabe
发明人： Shigeru Saotome , Masamitsu Ishida , Kazuo Shimura , Hideo Watanabe
IPC分类号： H04N1/04 , G01T1/29 , G03B42/02 , G06T1/00 , H04N1/407
CPC分类号： H04N1/4074 , G01T1/2014 , G03B42/02
摘要： In a radiation image read-out method and apparatus, a stimulable phosphor sheet carrying a radiation image stored thereon is exposed to stimulating rays which cause the stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and the emitted light is photoelectrically detected by a photodetector to obtain image signals. The detection range of the photodetector for the emitted light is adjusted to a range substantially wider than an expected light emission range. The image signals obtained with the detection range by the photodetector is stored in a storage device, and sent to a histogram analysis device for creating a histogram of the image signals and analyzing image input information on the stimulable phosphor sheet based on the histogram. An image signal in a range useful for reproduction of a visible image is extracted from the image signals stored in the storage device on the basis of the image input information obtained by the histogram analysis device, and utilized for reproducing the visible image.
摘要翻译：在放射线图像读取方法和装置中，将存储在其上的放射线图像的可刺激的荧光体片暴露于刺激光线，使得可激发的荧光体片材与存储的辐射能量成比例地发光，并且发射的光被光电检测通过光电检测器获得图像信号。用于发射的光的光检测器的检测范围被调整到比预期的发光范围宽得多的范围。通过光电检测器检测范围获得的图像信号被存储在存储装置中，并被发送到直方图分析装置，用于创建图像信号的直方图，并且基于直方图分析可刺激的磷光体片上的图像输入信息。基于由直方图分析装置获得的图像输入信息，从存储在存储装置中的图像信号中提取对可见图像的再现有用的范围内的图像信号，并用于再现可视图像。

18. 发明授权

US4814616A Radiation image recording and read-out apparatus 失效
标题翻译：辐射图像记录和读出装置
公开(公告)号：US4814616A
公开(公告)日：1989-03-21
申请号：US181350
申请日：1988-04-14
申请人： Shigeru Saotome
发明人： Shigeru Saotome
IPC分类号： G03B42/02 , G01T1/29 , G21K4/00 , H04N1/028 , H04N1/04 , G01N23/04
CPC分类号： G01T1/2014 , G01T1/2016 , G21K4/00 , H04N1/0281
摘要： A radiation image recording and read-out apparatus comprises a secured stimulable phosphor sheet, a section for recording a radiation image on the stimulable phosphor sheet by irradiating radiation to the stimulable phosphor sheet from one surface side thereof, and a stimulating ray source for producing stimulating rays which cause the stimulable phosphor sheet to emit light. A scanning system is provided for two-dimensionally scanning the stimulating rays on the image-recorded stimulable phosphor sheet from the side opposite to the radiation incidence side. A first light guide member faces the stimulable phosphor layer of the stimulable phosphor sheet from the radiation incidence side, and a photodetector is coupled with an end face of the first light guide member for detecting the light emitted by the stimulable phosphor sheet and entering the first light guide member from the surface thereof. A second light guide member faces the stimulable phosphor layer from the radiation incidence side, and an erasing light source is coupled with an end face of the second light guide member.
摘要翻译：一种辐射图像记录和读出装置，包括一个可固化的可激发荧光片，一个用于通过从其一个表面侧照射辐射到可刺激的荧光体片上的用于在可刺激的荧光体片上记录辐射图像的部分，以及用于产生刺激的荧光片的刺激光线源导致可刺激的荧光体片发光的光线。提供扫描系统，用于从与辐射入射侧相反的一侧二维地扫描图像记录的可激发荧光体片上的刺激光线。第一导光构件从辐射入射侧面对可刺激荧光体片的可刺激荧光体层，并且光电检测器与第一导光构件的端面耦合，用于检测可刺激荧光体片发射的光并进入第一导光构件导光构件。第二导光构件从辐射入射侧面向可激发荧光体层，并且擦除光源与第二导光构件的端面耦合。

19. 发明授权

US4680473A Radiation image read-out apparatus including selective stimulating ray reflection preventing means 失效
标题翻译：包括选择性刺激射线反射防止装置的放射图像读出装置
公开(公告)号：US4680473A
公开(公告)日：1987-07-14
申请号：US710255
申请日：1985-03-11
申请人： Terumi Matsuda , Toshitaka Aagano , Junji Miyahara , Nobuyoshi Nakajima , Shigeru Saotome
发明人： Terumi Matsuda , Toshitaka Aagano , Junji Miyahara , Nobuyoshi Nakajima , Shigeru Saotome
IPC分类号： G01T1/29 , G01T1/105
CPC分类号： G01T1/2014
摘要： A radiation image read-out apparatus comprises an optical system for scanning a stimulable phosphor sheet carrying a radiation image stored therein by stimulating rays, a light guide member for guiding light emitted by the stimulable phosphor sheet upon exposure to stimulating rays, a light guiding mirror for reflecting the emitted light to the light guide member, and a photoelectric converter for detecting the light guided by the light guide member. The light guiding mirror is provided with a reflection plane which reflects the light emitted by the stimulable phosphor sheet and which does not reflect stimulating rays. Or, a filter for absorbing the stimulating rays reflected by the stimulable phosphor sheet and transmitting the light emitted by the stimulable phosphor sheet is positioned between the scanned portion of the stimulable phosphor sheet and the light guiding mirror.
摘要翻译：放射线图像读出装置包括：光学系统，用于通过刺激光线扫描携带其中存储的放射线图像的可刺激的荧光体片;导光部件，用于在暴露于刺激光线时引导由可刺激的荧光体片发射的光;导光镜用于将发射的光反射到导光构件，以及光电转换器，用于检测由导光构件引导的光。导光镜设置有反射由可刺激的荧光体片发射的光并且不反射刺激光线的反射平面。或者，用于吸收由可刺激的荧光体片反射的刺激光线并透射由可刺激的荧光体片发射的光的滤光器位于可刺激的荧光体片的扫描部分和导光镜之间。

20. 发明授权

US5376801A Radiation film and energy subtraction processing method using the same 失效
标题翻译：辐射膜和能量减法处理方法使用相同
公开(公告)号：US5376801A
公开(公告)日：1994-12-27
申请号：US965422
申请日：1992-10-23
申请人： Shigeru Saotome , Satoshi Arakawa
发明人： Shigeru Saotome , Satoshi Arakawa
IPC分类号： G03C5/17 , H05G1/26 , G03B42/04
CPC分类号： G03C5/17 , H05G1/26
摘要： A radiation film comprises a substrate and emulsion layers overlaid on opposite surfaces of the substrate. The radiation film is sandwiched between two radiation intensifying screens having different radiation energy absorption characteristics. Each of the emulsion layers has a sensitivity corresponding to the emission spectrum of its adjacent radiation intensifying screen. The emulsion layers form different colors in the radiation film after the radiation film has been developed. A removable light blocking layer is located between the substrate and each of the emulsion layers. The radiation film enables two kinds of images to be recorded with different radiation energy characteristics on a single radiation film, such that the image quality may not become bad due to cross-over light.
摘要翻译：辐射膜包括衬底和覆盖在衬底的相对表面上的乳剂层。辐射膜夹在具有不同辐射能吸收特性的两个辐射增强屏之间。每个乳剂层具有对应于其相邻辐射增强屏的发射光谱的灵敏度。在辐射膜显影之后，乳剂层在辐射膜中形成不同的颜色。可移除的遮光层位于基底和每个乳剂层之间。该辐射膜使得能够在单个辐射膜上记录具有不同辐射能量特性的两种图像，使得图像质量可能由于交叉光而不会变坏。

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