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1. 发明授权

US5850465A Abnormnal pattern detecting or judging apparatus, circular pattern judging apparatus, and image finding apparatus 失效
标题翻译：异常模式检测或判断装置，圆形图案判断装置和图像查找装置
公开(公告)号：US5850465A
公开(公告)日：1998-12-15
申请号：US751449
申请日：1991-08-28
申请人： Kazuo Shimura , Yuuma Adachi , Shoji Hara , Nobuyoshi Nakajima , Wataru Ito
发明人： Kazuo Shimura , Yuuma Adachi , Shoji Hara , Nobuyoshi Nakajima , Wataru Ito
IPC分类号： G06K9/46 , G06T5/00 , G06T7/00 , G06F159/00
CPC分类号： G06T7/0081 , G06K9/4604 , G06T7/0012 , G06T7/0097 , G06T2207/10116 , G06T2207/20068 , G06T2207/20084 , G06T2207/20224 , G06T2207/30061 , G06T2207/30096 , Y10S128/92
摘要： An abnormal pattern detecting apparatus comprises a device for finding prospective abnormal patterns in a radiation image of an object from an image signal representing the radiation image, and a device for finding anatomical information about the object from the image signal. From the image signal components of the image signal, which represent the image information at positions in the vicinity of each prospective abnormal pattern, a characteristic measure calculating device calculates a plurality of characteristic measures for each prospective abnormal pattern. An abnormal pattern finding device utilizes the characteristic measures and the anatomical information in order to find a true abnormal pattern from the prospective abnormal patterns.
摘要翻译：异常模式检测装置包括从表示放射线图像的图像信号中发现物体的放射线图像中的预期异常模式的装置，以及用于从图像信号中找到关于对象的解剖信息的装置。特征测量计算装置根据每个预期异常模式附近的位置处的图像信息的图像信号的图像信号分量来计算每个预期异常模式的多个特征量度。异常模式发现装置利用特征性措施和解剖信息，从预期的异常模式中找到真正的异常模式。

2. 发明授权

US5122664A Method and apparatus for quantitatively analyzing bone calcium 失效
标题翻译：用于定量分析骨钙的方法和装置
公开(公告)号：US5122664A
公开(公告)日：1992-06-16
申请号：US691900
申请日：1991-04-26
申请人： Wataru Ito , Nobuyoshi Nakajima , Kazuo Shimura
发明人： Wataru Ito , Nobuyoshi Nakajima , Kazuo Shimura
IPC分类号： G01T1/29
CPC分类号： G01T1/2012
摘要： At least two stimulable phosphor sheets are exposed to at least two kinds of radiation, which have different energy distributions, without an object intervening between the stimulable phosphor sheets and a source of the radiation. The stimulable phosphor sheets are then exposed to stimulating rays, which cause them to emit light in proportion to the amount of energy stored thereon during their exposure to the radiation. The light emitted is photoelectrically detected, and digital image signals are thereby obtained, which are to be used for compensating for nonuniformity in how the radiation is irradiated to the stimulable phosphor sheets. Digital image signals representing radiation images of an object stored with at least two kinds of radiation and the corresponding digital image signals for the compensation are then subtracted from each other, and digital image signals are obtained which are free of noise due to nonuniformity in how at least two kinds of radiation are irradiated to the stimulable phosphor sheets. The digital image signals, which are free of noise, are then subtracted from each other, and a difference signal is thereby obtained which represents the image of only the bones represented by the radiation images. Bone calcium in the bones is quantitatively analyzed by utilizing the difference signal.
摘要翻译：至少两种可刺激的荧光体片材暴露于具有不同能量分布的至少两种辐射，而不会在可刺激的磷光体片材和辐射源之间插入物体。然后将可刺激的荧光体片暴露于刺激光线，这使得它们在暴露于辐射期间与其上存储的能量的量成比例地发光。发光的光被光电检测，从而获得数字图像信号，这些信号用于补偿辐射如何照射到可刺激的荧光体片上的不均匀性。表示用至少两种辐射存储的物体的放射线图像的数字图像信号和用于补偿的相应的数字图像信号被相互减去，并且获得数字图像信号，其由于不均匀性而无噪声将至少两种辐射照射到可刺激的荧光体片上。然后将没有噪声的数字图像信号相互减去，从而获得表示仅由辐射图像表示的骨骼的图像的差分信号。通过利用差异信号对骨骼中的骨钙进行定量分析。

3. 发明授权

US5172418A Image processing apparatus using disease-based image processing conditions 失效
标题翻译：使用基于疾病的图像处理条件的图像处理装置
公开(公告)号：US5172418A
公开(公告)日：1992-12-15
申请号：US564238
申请日：1990-08-08
申请人： Wataru Ito , Nobuyoshi Nakajima
发明人： Wataru Ito , Nobuyoshi Nakajima
IPC分类号： G03B42/02 , A61B6/00 , A61B10/00 , G01T1/29 , G06F19/00 , G06Q50/22 , G06Q50/24 , G06T1/00
CPC分类号： G01T1/2014 , G06F19/321 , Y10S706/924
摘要： An image processing apparatus processes diagnostic image data bearing thereon an image through which a disease is to be diagnosed so that a visible image having a quality optimal to diagnose the disease can be obtained. The image processing apparatus includes an image processing condition storage section and an image processing section. Names of various diseases and image processing conditions for the respective diseases are stored in the image processing condition storage section. The diagnostic image data is input into the image processing section. The name of a disease which is to be diagnosed is input into the image processing condition storage section, and the image processing condition corresponding to the disease is input into the image processing section from the image processing condition storage section. The image processing section carries out image processing on the image data according to the image processing condition input thereinto and generates a processed image data. The processed image data is sent to an image reproducing system where a visible image is reproduced on the basis of the processed image data.
摘要翻译：图像处理装置处理在其上承载有要诊断疾病的图像的诊断图像数据，使得可以获得具有最佳诊断疾病的质量的可视图像。图像处理装置包括图像处理条件存储部分和图像处理部分。各种疾病的名称和各种疾病的图像处理条件存储在图像处理条件存储部中。诊断图像数据被输入到图像处理部。要诊断的疾病的名称被输入到图像处理条件存储部分，并且与图像处理部分相对应的图像处理条件从图像处理条件存储部分输入到图像处理部分。图像处理部根据输入的图像处理条件对图像数据进行图像处理，并生成处理后的图像数据。经处理的图像数据被发送到图像再现系统，其中基于处理的图像数据再现可见图像。

4. 发明授权

US5999638A Method and apparatus for adjusting read-out conditions and/or image processing conditions for radiation images, radiation image read-out apparatus, and radiation image analyzing method and apparatus 失效
标题翻译：用于调整放射线图像的读出条件和/或图像处理条件的方法和装置，放射线图像读出装置和放射线图像分析方法和装置
公开(公告)号：US5999638A
公开(公告)日：1999-12-07
申请号：US591934
申请日：1996-01-29
申请人： Hideya Takeo , Wataru Ito , Kazuo Shimura
发明人： Hideya Takeo , Wataru Ito , Kazuo Shimura
IPC分类号： G01T1/29 , G06T5/40 , G06K9/00
CPC分类号： G01T1/2014 , G06T5/009 , G06T2207/10116 , G06T2207/20084
摘要： A first image signal representing a radiation image of an object is obtained by exposing a stimulable phosphor sheet, on which the radiation image has been stored, to stimulating rays, which cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during its exposure to radiation, the emitted light being detected. A second image signal representing the radiation image is thereafter obtained by again exposing the stimulable phosphor sheet to stimulating rays, the light emitted by the stimulable phosphor sheet being detected. Read-out conditions, under which the second image signal is to be obtained, and/or image processing conditions, under which the second image signal having been obtained is to be image processed, are adjusted on the basis of the first image signal. A storage device stores information representing a standard pattern of radiation images. A signal transforming device transforms the first image signal representing the radiation image into a transformed image signal representing the radiation image, which has been transformed into the standard pattern. A condition adjuster is provided with a neural network, which receives the transformed image signal and feeds out information representing the read-out conditions and/or the image processing conditions.
摘要翻译：表示物体的放射线图像的第一图像信号是通过使已经存储有放射线图像的可刺激的荧光体片曝光来刺激光线，使得可激发的荧光体片材与存储的能量的量成比例地发光在其暴露于辐射的同时，发射的光被检测。然后，通过再次使可刺激的荧光体片曝光以刺激光线，获得表示放射线图像的第二图像信号，由可刺激的磷光体片发射的光被检测。基于第一图像信号调整要获得第二图像信号的读出条件和/或已经获得的第二图像信号被图像处理的图像处理条件。存储装置存储表示辐射图像的标准图案的信息。信号变换装置将表示放射线图像的第一图像信号变换为已经变换为标准图案的表示放射线图像的变换后的图像信号。条件调节器设置有神经网络，其接收变换后的图像信号并输出表示读出条件和/或图像处理条件的信息。

5. 发明授权

US5828775A Method and apparatus for adjusting read-out conditions and/or image processing conditions for radiation images , radiation image read-out apparatus, and radiation image analyzing method and apparatus 失效
标题翻译：用于调整放射线图像的读出条件和/或图像处理条件的方法和装置，放射线图像读出装置和放射线图像分析方法和装置
公开(公告)号：US5828775A
公开(公告)日：1998-10-27
申请号：US864451
申请日：1997-05-28
申请人： Hideya Takeo , Wataru Ito , Kazuo Shimura
发明人： Hideya Takeo , Wataru Ito , Kazuo Shimura
IPC分类号： G01T1/29 , G06T5/40 , G06K9/00 , G06K9/62
CPC分类号： G01T1/2014 , G06T5/009 , G06T2207/10116 , G06T2207/20084
摘要： A first image signal representing a radiation image of an object is obtained by exposing a stimulable phosphor sheet, on which the radiation image has been stored, to stimulating rays, which cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during its exposure to radiation, the emitted light being detected. A second image signal representing the radiation image is thereafter obtained by again exposing the stimulable phosphor sheet to stimulating rays, the light emitted by the stimulable phosphor sheet being detected. Read-out conditions, under which the second image signal is to be obtained, and/or image processing conditions, under which the second image signal having been obtained is to be image processed, are adjusted on the basis of the first image signal. A storage device stores information representing a standard pattern of radiation images. A signal transforming device transforms the first image signal representing the radiation image into a transformed image signal representing the radiation image, which has been transformed into the standard pattern. A condition adjuster is provided with a neural network, which receives the transformed image signal and feeds out information representing the read-out conditions and/or the image processing conditions.
摘要翻译：表示物体的放射线图像的第一图像信号是通过使已经存储有放射线图像的可刺激的荧光体片曝光来刺激光线，使得可激发的荧光体片材与存储的能量的量成比例地发光在其暴露于辐射的同时，发射的光被检测。然后，通过再次使可刺激的荧光体片曝光以刺激光线，获得表示放射线图像的第二图像信号，由可刺激的磷光体片发射的光被检测。基于第一图像信号调整要获得第二图像信号的读出条件和/或已经获得的第二图像信号被图像处理的图像处理条件。存储装置存储表示辐射图像的标准图案的信息。信号变换装置将表示放射线图像的第一图像信号变换为已经变换为标准图案的表示放射线图像的变换后的图像信号。条件调节器设置有神经网络，其接收变换后的图像信号并输出表示读出条件和/或图像处理条件的信息。

6. 发明授权

US5515450A Method and apparatus for adjusting read-out conditions and/or image 失效
标题翻译：用于调整读出条件和/或图像的方法和装置
公开(公告)号：US5515450A
公开(公告)日：1996-05-07
申请号：US164825
申请日：1993-12-09
申请人： Hideya Takeo , Wataru Ito , Kazuo Shimura
发明人： Hideya Takeo , Wataru Ito , Kazuo Shimura
IPC分类号： G01T1/29 , G06T5/40 , G06K9/00 , G06F15/00 , G06K9/62
CPC分类号： G01T1/2014 , G06T5/009 , G06T2207/10116 , G06T2207/20084
摘要： A first image signal representing a radiation image of an object is obtained by exposing a stimulable phosphor sheet, on which the radiation image has been stored, to stimulating rays, which cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during its exposure to radiation, the emitted light being detected. A second image signal representing the radiation image is thereafter obtained by again exposing the stimulable phosphor sheet to stimulating rays, the light emitted by the stimulable phosphor sheet being detected. Read-out conditions, under which the second image signal is to be obtained, and/or image processing conditions, under which the second image signal having been obtained is to be image processed, are adjusted on the basis of the first image signal. A storage device stores information representing a standard pattern of radiation images. A signal transforming device transforms the first image signal representing the radiation image into a transformed image signal representing the radiation image, which has been transformed into the standard pattern. A condition adjuster is provided with a neural network, which receives the transformed image signal and feeds out information representing the read-out conditions and/or the image processing conditions.
摘要翻译：表示物体的放射线图像的第一图像信号是通过使已经存储有放射线图像的可刺激的荧光体片曝光来刺激光线，使得可激发的荧光体片材与存储的能量的量成比例地发光在其暴露于辐射的同时，发射的光被检测。然后，通过再次使可刺激的荧光体片曝光以刺激光线，获得表示放射线图像的第二图像信号，由可刺激的磷光体片发射的光被检测。基于第一图像信号调整要获得第二图像信号的读出条件和/或已经获得的第二图像信号被图像处理的图像处理条件。存储装置存储表示辐射图像的标准图案的信息。信号变换装置将表示放射线图像的第一图像信号变换为已经变换为标准图案的表示放射线图像的变换后的图像信号。条件调节器设置有神经网络，其接收变换后的图像信号并输出表示读出条件和/或图像处理条件的信息。

7. 发明授权

US5485371A Method for forming energy subtraction radiation images, and method and apparatus for smoothing radiation images 失效
标题翻译：用于形成能量减影辐射图像的方法，以及用于平滑辐射图像的方法和装置
公开(公告)号：US5485371A
公开(公告)日：1996-01-16
申请号：US654450
申请日：1991-02-12
申请人： Wataru Ito , Kazuo Shimura
发明人： Wataru Ito , Kazuo Shimura
IPC分类号： G01T1/29 , G06T5/50 , H04N5/32 , G06F15/00
CPC分类号： G06T5/004 , G01T1/2014 , G06T5/50 , H04N5/3205
摘要： A method and apparatus for forming an energy subtraction image comprises recording a plurality of radiation images of an object on recording media by irradiating several kinds of radiation with different energy levels to the object, which is constituted of a plurality of tissues exhibiting different levels of radiation absorptivity with respect to the several kinds of radiation with different energy levels, and then detecting a plurality of original image signals representing the plurality of the radiation images. A first image signal, which represents a first image primarily composed of patterns of first tissues of the object, is generated from the plurality of the original image signals. A first smoothed image signal is generated by processing the first image signal, the first smoothed image signal representing a first smoothed image in which noise components of the first image have been reduced or eliminated. A second image signal is generated by subtracting the first smoothed image signal from an original image signal, the second image signal representing a second image primarily composed of patterns of second tissues of the object.
摘要翻译：用于形成能量减影图像的方法和装置包括：通过将具有不同能级的几种辐射照射到物体上来记录物体在记录介质上的多个辐射图像，该多个辐射图像由表现出不同水平辐射的多个组织构成相对于具有不同能级的几种辐射的吸收率，然后检测表示多个辐射图像的多个原始图像信号。从多个原始图像信号生成表示主要由对象的第一组织的图案组成的第一图像的第一图像信号。通过处理第一图像信号来生成第一平滑图像信号，第一平滑图像信号表示第一图像的噪声分量已被减少或消除的第一平滑图像。通过从原始图像信号中减去第一平滑图像信号来生成第二图像信号，第二图像信号表示主要由对象的第二组织的图案组成的第二图像。

8. 发明授权

US5028784A Method for generating radiation image signals, image processing method, and radiation image read-out apparatus 失效
标题翻译：用于产生放射线图像信号的方法，图像处理方法和放射线图像读出装置
公开(公告)号：US5028784A
公开(公告)日：1991-07-02
申请号：US507287
申请日：1990-04-10
申请人： Satoshi Arakawa , Wataru Ito , Kazuo Shimura , Toshitaka Agano
发明人： Satoshi Arakawa , Wataru Ito , Kazuo Shimura , Toshitaka Agano
IPC分类号： G06T5/00 , H04N1/409
CPC分类号： H04N1/409 , A61B6/5258 , G06T5/002 , G06T5/10 , G06T5/20 , G06T2200/12 , G06T2207/10116 , G06T2207/20056
摘要： A method for generating a radiation image signal comprises the steps of detecting an image signal by reading out a radiation image, which has been recorded on a recording medium during an image recording operation using a grid and which comprises an object image and a striped grid image corresponding to the grid and superposed upon the object image. The image signal is sampled such that a plurality of image signal components are obtained which correspond to a plurality of discrete points on the radiation image, intervals between the discrete points varying irregularly from predetermined intervals at least along a direction intersecting the striped pattern of the grid image on the radiation image.
摘要翻译：一种用于产生放射线图像信号的方法包括以下步骤：通过读出在使用网格的图像记录操作期间已经记录在记录介质上的辐射图像来检测图像信号，并且包括对象图像和条纹网格图像对应于网格并叠加在物体图像上。图像信号被采样，使得获得与辐射图像上的多个离散点相对应的多个图像信号分量，离散点之间的间隔至少沿着与网格的条纹图案相交的方向从预定间隔不规则地变化放射图像上的图像。

9. 发明授权

US5224036A Pattern Recognition apparatus 失效
标题翻译：图案识别装置
公开(公告)号：US5224036A
公开(公告)日：1993-06-29
申请号：US542338
申请日：1990-06-22
申请人： Wataru Ito , Shoji Hara
发明人： Wataru Ito , Shoji Hara
IPC分类号： G06K9/52 , G06T7/00
CPC分类号： G06T7/0012 , G06K9/52 , G06T2207/30096
摘要： An apparatus for determining the probability that the shadow of a tumor designated on a radiation image of an object is the shadow of a malignant tumor on the basis of an image signal representing the radiation image includes a spectrum calculating means, a characteristic value calculating means, and a judging means. The spectrum calculating means obtains the spectrum distribution of the image signal D(r,.theta.) whose coordinates are expressed in polar form with the origin taken as the approximate center of the shadow. From the spectrum distribution the characteristic value calculating means obtains a characteristic value, which the judging means uses to determine the probability that the shadow of a tumor is the shadow of a malignant tumor.

10. 发明授权

US5033100A Method and apparatus for classifying picture elements in radiation images 失效
标题翻译：辐射图像中图像元素分类的方法和装置
公开(公告)号：US5033100A
公开(公告)日：1991-07-16
申请号：US542487
申请日：1990-06-22
申请人： Shoji Hara , Wataru Ito
发明人： Shoji Hara , Wataru Ito
IPC分类号： G06K9/46 , G06T5/00 , G06T7/00
CPC分类号： G06T7/0012 , G06K9/4604 , G06T7/00 , G06T7/0083 , G06T2207/10116 , G06T2207/30061 , G06T2207/30096
摘要： Calculations are made to find the differences, .DELTA.ij=fij-f0, between the value of an image signal component f0 representing as picture element P0 in a radiation image and the values of image signal components fij representing the picture elements Pij, which are located on each of a plurality of lines Li, where i=1, 2, . . . , n, extending from the picture element P0 to the peripheral parts of the radiation image, and which are spaced a plurality of distances rij, where j=1, 2, . . . , m, from the picture element P0. A representative value, which is representative of the differences .DELTA.ij, is then found for each of the lines Li. A mean-level value of two representative values for each set of two lines, which extend from the picture element P0 in approximately opposite directions, is then calculated. From the mean-level values, which have been calculated for a plurality of the sets of lines, a judgment is made as to whether the picture element P0 falls or does not fall within the region corresponding to a circular pattern in the radiation image.
摘要翻译：进行计算，以发现在辐射图像中表示图像元素P0的图像信号分量f0的值与表示图像元素Pij的图像信号分量fij的值之间的差值DELTA ij = fij-f0 在从图像元素P0延伸到放射线图像的周边部分，并且间隔多个距离rij的多个线路Li，其中i = 1,2，...，n，其中j = 1，2，...，m。然后，针对每个线路Li找到代表差异DELTA ij的代表值。然后计算从大致相反方向从像素P0延伸的每组两行的两个代表值的平均电平值。根据已经针对多组行计算的平均值，判断图像元素P0是否落在与放射线图像中的圆形图案对应的区域内。

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