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1. 发明授权

US06542771B2 Method of and system for detecting prospective abnormal shadow and method of reproducing radiation image 失效
公开(公告)号：US06542771B2
公开(公告)日：2003-04-01
申请号：US09875914
申请日：2001-06-08
申请人： Shigeru Saotome , Kazuo Shimura , Takeshi Ohkubo
发明人： Shigeru Saotome , Kazuo Shimura , Takeshi Ohkubo
IPC分类号： A61B505
CPC分类号： G06T7/0012
摘要： A primary prospective abnormal shadow is detected in each of at least two radiation images of an object taken in different directions. Only primary prospective abnormal shadows which are detected in the respective radiation images and are in substantially the same position on the object is taken as a final prospective abnormal shadow.

2. 发明授权

US4835386A 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：US4835386A
公开(公告)日：1989-05-30
申请号：US919689
申请日：1986-10-16
申请人： Kazuo Shimura , Nobufumi Mori , Shigeru Saotome , Ryoichi Yoshimura , Hideo Watanabe , Yuichi Hosoi
发明人： Kazuo Shimura , Nobufumi Mori , Shigeru Saotome , Ryoichi Yoshimura , Hideo Watanabe , Yuichi Hosoi
IPC分类号： G01T1/29 , G03B42/02
CPC分类号： G03B42/02 , G01T1/2012
摘要： A radiation image recording and read-out apparatus comprises a case housing a stimulable phosphor sheet and having an opening, a light shielding cover housed in the case for projection therefrom through the opening, a recording section for exposing the stimulable phosphor sheet disposed at an exposure position in the light shielding cover projected out of the case to radiation, and a read-out section having a sub-scanning system for moving the stimulable phosphor sheet between the exposure position and a position in the case. Or, the apparatus comprises a case having an opening for passing the stimulable phosphor sheet therethrough, a recording section for exposing the stimulable phosphor sheet disposed at the exposure position in the case to radiation, and a read-out section having a sub-scanning system for moving the stimulable phosphor sheet between the exposure position and a position projected out of the case. Alternatively, the apparatus comprises a sheet feed system for reciprocating a strip-like flexible stimulable phosphor sheet between first and second wind-up shafts, and a recording section for exposing the stimulable phosphor sheet disposed between the first and second wind-up shafts to radiation.
摘要翻译：放射线图像记录和读出装置包括容纳可刺激的荧光体片并具有开口的壳体，容纳在壳体中的遮光盖，用于通过该开口从其突出;记录部分，用于暴露以曝光设置的可激发荧光粉片并且具有副扫描系统的读出部，该辅助扫描系统用于在曝光位置和外壳中的位置之间移动可刺激的荧光体片。或者，该装置包括具有用于使可刺激的荧光体片通过的开口的壳体，用于将设置在外壳中的曝光位置处的可刺激的荧光体片曝光的记录部分，以及具有副扫描系统的读出部分用于将可刺激的荧光体片材在曝光位置和从外壳伸出的位置之间移动。或者，该装置包括用于使第一和第二卷绕轴之间的条状柔性可刺激磷光体片往复运动的片材进给系统和用于将设置在第一和第二卷绕轴之间的可刺激磷光体片暴露于辐射的记录部分。

3. 发明授权

US4748326A Radiation image read-out apparatus 失效
标题翻译：辐射图像读出装置
公开(公告)号：US4748326A
公开(公告)日：1988-05-31
申请号：US947220
申请日：1986-12-29
申请人： Nobufumi Mori , Shigeru Saotome , Hideo Watanabe , Kazuo Shimura
发明人： Nobufumi Mori , Shigeru Saotome , Hideo Watanabe , Kazuo Shimura
IPC分类号： H04N1/04 , G01T1/00 , G01T1/29 , G03B42/02 , H04N1/00 , H04N1/40 , H04N1/407 , G03C5/16
CPC分类号： H04N1/40068 , G01T1/2014
摘要： A radiation image read-out apparatus is constituted for scanning a stimulable phosphor sheet carrying a radiation image stored thereon with a beam of stimulating rays which cause the stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and photoelectrically detecting the light emitted by a stimulable phosphor sheet portion scanned with the beam of stimulating rays by use of a photodetector to obtain an image signal. The radiation image read-out apparatus is constituted so that the beam diameter of the beam of stimulating rays is adjusted to be smaller than a picture element size and each of picture elements is scanned by a plurality of scanning passes with the beam of stimulating rays. An addition device is provided for adding a plurality of image signals per picture element obtained by the plurality of scanning passes.
摘要翻译：一种放射线图像读取装置，用于扫描携带其上存储的放射线图像的可刺激的荧光片，其中激发光束使得可刺激的荧光体片材与存储的辐射能量成比例地发光，并且光电检测发射的光通过使用光电检测器用刺激光束扫描的可刺激的磷光体片部分以获得图像信号。辐射图像读取装置被构造成使得刺激光束的光束直径被调节为小于像素尺寸，并且通过激发光线的多个扫描遍扫描每个图像元素。提供了一种添加装置，用于通过多次扫描通过获得的每个图像元素添加多个图像信号。

4. 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。

5. 发明授权

US5857037A Image processing method and apparatus 失效
标题翻译：图像处理方法和装置
公开(公告)号：US5857037A
公开(公告)日：1999-01-05
申请号：US611488
申请日：1996-03-05
申请人： Shigeru Saotome , Eiji Ogawa
发明人： Shigeru Saotome , Eiji Ogawa
IPC分类号： G03B42/02 , G06T5/00 , G06T5/20 , H04N1/409 , G06K9/40 , H04N1/40
CPC分类号： G06T5/004 , H04N1/4092
摘要： A digital image signal, which represents values of picture elements arrayed along X and Y directions of an image, is subjected to operation processing carried out with the formulaQ'=Qorg+.beta.(Qorg-Qus),wherein Qorg represents the original image signal representing each picture element, Qus represents an unsharp mask signal corresponding to super-low frequency with respect to the picture element, and .beta. represents an emphasis coefficient. The image signal obtained from the operation processing is fed into a reproducing apparatus, which reproduces an image by operations for scanning along X and Y directions. The operation processing is carried out with respect to the X and Y directions, under characteristics varying for different directions, and in accordance with a difference between responses of the reproducing apparatus along the X and Y directions. Final levels of sharpness of a visible image, which is reproduced by the reproducing apparatus, along the X and Y directions are thereby adjusted to be approximately equal to each other.
摘要翻译：表示沿着图像的X和Y方向排列的图像元素的值的数字图像信号进行用公式Q'= Qorg +β（Qorg-Qus）执行的操作处理，其中Qorg表示表示每个图像的原始图像信号图像元素，Qus表示相对于像素对应于超低频的钝化掩模信号，β表示强调系数。从操作处理获得的图像信号被馈送到再现装置，其通过用于沿着X和Y方向扫描的操作再现图像。在不同方向变化的特性下，根据再现装置沿X方向和Y方向的响应差，对X方向和Y方向进行运算处理。由再现装置再现的可见图像的沿着X和Y方向的清晰度的最终水平被调整为大致相等。

6. 发明授权

US4950904A Radiation image read-out apparatus 失效
标题翻译：辐射图像读出装置
公开(公告)号：US4950904A
公开(公告)日：1990-08-21
申请号：US470501
申请日：1990-01-26
申请人： Shigeru Saotome
发明人： Shigeru Saotome
IPC分类号： G03B42/02 , A61B6/00 , G01D15/14 , G01T1/29 , H04N1/04 , H04N1/113
CPC分类号： G01T1/2014 , G01D15/14
摘要： A radiation image read-out apparatus comprises a main scanning system which scans a stimulable phosphor sheet, on which a radiation image has been stored, with stimulating rays in a main scanning direction. The stimulating rays cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during its exposure to radiation. A sub-scanning system moves the stimulable phosphor sheet with respect to the stimulating rays in a direction approximately normal to the main scanning direction. A light guide member, which has a light input face extending along the main scanning line on the stimulable phosphor sheet, guides the emitted light entering the light guide member at its light input face to a light output face. A photodetector is connected to the light output face. Plate-shaped members are secured to the light input face at predetermined intervals, the intervals being taken in the main scanning direction, so that the plate-shaped members are erect in a direction approximately normal to the light input face and surfaces of adjacent plate-shaped members face each other.
摘要翻译：放射线图像读取装置包括：主扫描系统，其以主扫描方向刺激射线扫描已经存储了放射线图像的可刺激的荧光体片。刺激光线使得可刺激的荧光体片材在其暴露于辐射期间与其上存储的能量的量成比例地发光。副扫描系统使激发的荧光体片相对于激励光线在大致垂直于主扫描方向的方向上移动。导光构件具有沿着可激励荧光体片上的主扫描线延伸的光输入面，将在其光输入面入射到导光构件的发射光导向光输出面。光检测器连接到光输出面。板状构件以预定的间隔固定到光输入面，间隔沿主扫描方向取得，使得板状构件沿大致垂直于光输入面的方向竖立，并且相邻的板状构件的表面，形状的构件彼此面对。

7. 发明授权

US4816688A Radiation image read-out apparatus for stimulable phosphor sheet 失效
标题翻译：用于可刺激荧光粉片的辐射图像读出装置
公开(公告)号：US4816688A
公开(公告)日：1989-03-28
申请号：US742666
申请日：1985-06-07
申请人： Shigeru Saotome
发明人： Shigeru Saotome
IPC分类号： G03B42/02 , G01T1/29 , H04N1/028 , H04N1/04 , H04N1/113 , G01T1/105
CPC分类号： H04N1/0281 , G01T1/2014
摘要： A radiation image read-out apparatus comprises a source for emitting stimulating rays for scanning a stimulable phosphor sheet carrying a radiation image stored therein, a photoelectric read-out means for detecting light emitted by the stimulable phosphor sheet when it is scanned by stimulating rays, and a reflection mirror positioned near a portion of the stimulable phosphor sheet where stimulating rays impinge thereupon for reflecting light emitted by the stimulable phosphor sheet towards the photoelectric read-out system. The reflection mirror is fabricated to be moveable between a position at which the reflection mirror reflects light, which is emitted by the stimulable phosphor sheet, towards the photoelectric read-out means and a position at which the reflection mirror does not reflect stimulating rays, which are reflected by the stimulable phosphor sheet, towards the stimulable phosphor sheet.
摘要翻译：一种放射线图像读取装置，包括：用于发射刺激光线的源，用于扫描携带其中存储的放射线图像的可刺激荧光粉片;光电读出装置，用于当通过刺激光线扫描时，检测由可刺激的荧光体片发射的光; 以及位于可刺激的磷光体片的一部分附近的反射镜，其中刺激光线照射在其上以将可刺激的磷光体片发射的光反射到光电读出系统。反射镜被制造为可以在反射镜反射由可刺激的荧光体片发射的光朝向光电读出装置的位置和反射镜不反射刺激光线的位置之间移动，被可刺激的荧光粉片反射到可刺激的荧光粉片上。

8. 发明授权

US5953465A Interpolation processing method and apparatus for image signals having improved image edge differentiation 失效
标题翻译：具有改善的图像边缘差分的图像信号的插值处理方法和装置
公开(公告)号：US5953465A
公开(公告)日：1999-09-14
申请号：US818006
申请日：1997-03-14
申请人： Shigeru Saotome
发明人： Shigeru Saotome
IPC分类号： G03B42/02 , G06T1/00 , G06T3/40 , H04N1/393 , G06K9/32
CPC分类号： G06T3/403
摘要： A judgment is made as to whether an interpolation point in an original image is or is not located at an image edge portion. The judgment is made by using a threshold value having been set such that, as a desired level of sharpness of an interpolation image obtained from interpolation processing becomes low, the threshold value may become large. When an interpolation point is judged as being located at an image edge portion, an interpolated image signal component corresponding to the interpolation point is calculated with interpolation processing capable of keeping the image edge portion sharp. When an interpolation point is judged as not being located at an image edge portion, an interpolated image signal component corresponding to the interpolation point is calculated with the interpolation processing, which is carried out by combining interpolation processing for obtaining an interpolation image, which has a comparatively high sharpness, and interpolation processing for obtaining an interpolation image, which has a low sharpness.
摘要翻译：判断原图像中的内插点是否位于图像边缘部分。通过使用已经被设置为使得从由插值处理获得的内插图像的期望锐度水平变低的阈值可以变大的阈值来进行判断。当插入点被判断为位于图像边缘部分时，通过能够保持图像边缘部分锐利的插值处理来计算与插值点对应的内插图像信号分量。当插入点被判断为不位于图像边缘部分时，通过内插处理来计算与内插点相对应的内插图像信号分量，该内插处理通过组合用于获得内插图像的内插处理来执行，该插值处理具有较高的锐度和用于获得具有低锐度的内插图像的插值处理。

9. 发明授权

US5115132A Radiation image recording and read-out apparatus 失效
公开(公告)号：US5115132A
公开(公告)日：1992-05-19
申请号：US464669
申请日：1990-01-11
申请人： Shigeru Saotome , Masamitsu Ishida
发明人： Shigeru Saotome , Masamitsu Ishida
IPC分类号： G01T1/29 , G03B42/02
CPC分类号： G01T1/2014 , G01T1/2016 , G03B42/02
摘要： A radiation image recording and read-out apparatus comprises a recording and read-out unit for recording a radiation image on a stimulable phosphor sheet and reading the radiation image therefrom, a shutter moveable between a masking position that prevents impingement of radiation upon a part of the stimulable phosphor sheet and a retracted position that allows impingement of radiation upon a single image recording region of the stimulable phosphor sheet, and a shutter operating device for moving the shutter between the masking position and the retracted position. The recording and read-out unit is moved by a unit movement device to move the stimulable phosphor sheet in the same plane at an image recording position in the recording and read-out unit. A system is provided for operating the shutter operating device to move the shutter to the masking position, and operating the unit movement device to move the recording and read-out unit so that the uncovered portion of the stimulable phosphor sheet at the image recording position that is not covered by the shutter changes sequentially.

10. 发明授权

US5038037A 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：US5038037A
公开(公告)日：1991-08-06
申请号：US572537
申请日：1990-08-27
申请人： Shigeru Saotome
发明人： Shigeru Saotome
IPC分类号： G01T1/29 , G03B42/02 , G21K4/00
CPC分类号： G03B42/02 , G01T1/2012 , G21K4/00
摘要： A radiation image recording and read-out apparatus comprises stimulable phosphor layers provided respectively on one surface and the other surface of a flexible belt, which belt changes the distribution of the radiation energy, whereby radiation images containing different embedded images on a specific structure of an object are recorded on the two stimulable phosphor layers with a single, simultaneous exposure to radiation. The two stimulable phosphor layers may be provided as two separate sheets. Two independent image read-out sections for reading out the radiation images stored on the stimulable phosphor layers, and two independent erasing sections for erasing radiation energy remaining on the stimulable phosphor layers are provided for the two stimulable phosphor layers, so that the two radiation images are read out simultaneously. Alternatively, each image read-out section and erasing section pair may be provided as separate readout and erasing unit.
摘要翻译：辐射图像记录和读出装置包括分别设置在柔性带的一个表面和另一个表面上的可刺激的磷光体层，该带改变辐射能量的分布，由此将包含不同嵌入图像的辐射图像在特定结构上物体被记录在两个可刺激的荧光体层上，同时暴露于辐射。两个可刺激的磷光体层可以被提供为两个分开的片。为两个可刺激的荧光体层提供两个用于读出存储在可刺激的荧光体层上的辐射图像的独立图像读出部分和用于擦除残留在可刺激荧光体层上的辐射能量的两个独立擦除部分，使得两个辐射图像同时读出。或者，每个图像读出部分和擦除部分对可以被提供为单独的读出和擦除单元。

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