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。

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。

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。

公开(公告)号：US5272339A

公开(公告)日：1993-12-21

申请号：US718533

申请日：1991-06-19

申请人： Kazuo Shimura ,  Takefumi Nagata ,  Hiroshi Tanaka ,  Kazuhiro Hishinuma ,  Shoji Hara ,  Hideya Takeo

发明人： Kazuo Shimura ,  Takefumi Nagata ,  Hiroshi Tanaka ,  Kazuhiro Hishinuma ,  Shoji Hara ,  Hideya Takeo

IPC分类号： G01T1/29 ,  G01N23/04

CPC分类号： G01T1/2014

摘要： A method for adjusting conditions comprises the steps of, when a radiation image of a specific object is recorded and read out, investigating whether recording and read-out operations were or were not carried out in the past for the same object as the specific object. When recording and read-out operations were carried out in the past for the same object as the specific object, image recording conditions for the specific object are adjusted such that they coincide with those under which the recording operation was carried out for the same object as the specific object. Also, instead of read-out conditions for a final readout, which is to be carried out for the specific object, being adjusted on the basis of a preliminary read-out image signal representing the radiation image of the specific object, the read-out conditions for the final readout to be carried out for the specific object are adjusted such that they coincide with those under which the final readout was carried out from the radiation image of the same object as the specific object. Recording and read-out operations for the specific object are carried out under the conditions, which have thus been adjusted.

摘要翻译： 一种用于调节条件的方法包括以下步骤：当记录和读出特定对象的放射线图像时，调查与特定对象相同的对象在过去是否执行了记录和读出操作。 在与特定对象相同的对象上进行了记录和读出操作时，调整特定对象的图像记录条件，使得它们与对同一对象执行记录操作的图像记录条件一致 具体的对象。 此外，代替用于特定对象的最终读出的读出条件，基于表示特定对象的放射线图像的初步读出图像信号进行调整，读出 调整对特定对象进行最终读出的条件，使得它们与从与特定对象相同的对象的放射线图像执行最终读出的条件一致。 在特定对象的记录和读出操作在已经被调整的条件下进行。

公开(公告)号：US06516081B1

公开(公告)日：2003-02-04

申请号：US08941059

申请日：1997-09-30

申请人： Kazuo Shimura ,  Hideya Takeo

发明人： Kazuo Shimura ,  Hideya Takeo

IPC分类号： G06K900

CPC分类号： G06T5/50

摘要： When processing a radiation image, an image signal representing a radiation image and a prospective irradiation field information representing a prospective irradiation field of the radiation image are obtained in an image information obtaining section. The prospective irradiation field information is transferred to an image output section attached to the radiation image signal or separately therefrom. An image processing to make the image in the prospective irradiation field more suitable for viewing on the transferred image signal is carried out in the image output section on the basis of the transferred prospective irradiation field information, and a radiation image is output on the basis of the processed image signal.

摘要翻译： 在处理放射线图像时，在图像信息获取部中获得表示放射线图像的图像信号和表示放射线图像的预期照射场的预期照射场信息。 预期照射场信息被传送到附接到放射线图像信号的图像输出部分或者与其分离。 基于所转移的预期照射场信息，在图像输出部中进行使预期照射场中的图像更适于观察转印图像信号的图像处理，并且基于 处理后的图像信号。

公开(公告)号：US5157733A

公开(公告)日：1992-10-20

申请号：US712214

申请日：1991-06-07

申请人： Hideya Takeo ,  Kazuhiro Hishinuma ,  Kazuo Shimura ,  Nobuyoshi Nakajima ,  Shoji Hara ,  Hiroshi Tanaka ,  Takefumi Nagata

发明人： Hideya Takeo ,  Kazuhiro Hishinuma ,  Kazuo Shimura ,  Nobuyoshi Nakajima ,  Shoji Hara ,  Hiroshi Tanaka ,  Takefumi Nagata

IPC分类号： G06T7/00

CPC分类号： G06T7/004 ,  G06T7/00 ,  G06T2207/30004 ,  Y10S128/925

摘要： In a radiation image processing apparatus, signal processing for determining the shape and location of an irradiation field, adjusting read-out conditions for a final readout from a preliminary read-out image signal, adjusting image processing conditions, and/or detecting an abnormal pattern is carried out on an image signal representing a radiation image by using a neural network. After the neural network, the learning operations of which have been carried out, is incorporated into the radiation image processing apparatus, modifying information is entered from an input device into the neural network. The modifying information is used to modify the signal processing carried out by the neural network and thereby to carry out re-learning operations of the neural network.

摘要翻译： 在放射线图像处理装置中，用于确定照射场的形状和位置的信号处理，从初步读出图像信号调整用于最终读出的读出条件，调整图像处理条件和/或检测异常模式 通过使用神经网络对表示放射线图像的图像信号进行。 在已经进行了学习操作的神经网络被并入放射线图像处理装置之后，将修改信息从输入装置输入到神经网络中。 修改信息用于修改由神经网络执行的信号处理，从而执行神经网络的重新学习操作。

公开(公告)号：US06512841B2

公开(公告)日：2003-01-28

申请号：US09144522

申请日：1998-08-31

申请人： Masahiko Yamada ,  Eiji Ogawa ,  Hideya Takeo ,  Kazuo Shimura

发明人： Masahiko Yamada ,  Eiji Ogawa ,  Hideya Takeo ,  Kazuo Shimura

IPC分类号： G06K900

CPC分类号： G06T5/10 ,  G06T5/009 ,  Y10S128/922

摘要： At least one kind of image input modality and at least one kind of image information output device are connected to an image processing system. At least one kind of image input modality, which is among connected image input modalities, includes a plurality of image information input apparatuses having different input device characteristics. The image processing system comprises a standardization device for carrying out transform processing on image information such that, in every case where the image information has been received from one image information input apparatus, which is among the plurality of the image information input apparatuses, the received image information may be transformed into standard image information, which does not depend upon the input device characteristics of the one image information input apparatus and depends upon standard device characteristics having been set previously for the image input modality including the one image information input apparatus.

摘要翻译： 至少一种图像输入模式和至少一种图像信息输出装置连接到图像处理系统。 连接图像输入模式中的至少一种图像输入模式包括具有不同输入装置特性的多个图像信息输入装置。 图像处理系统包括：对图像信息进行变换处理的标准化装置，使得在从多个图像信息输入装置中的一个图像信息输入装置接收到图像信息的每一种情况下，接收到 图像信息可以被转换成不依赖于一个图像信息输入装置的输入装置特性的标准图像信息，并且取决于对包括一个图像信息输入装置的图像输入模式先前已经设置的标准装置特性。

公开(公告)号：US4962539A

公开(公告)日：1990-10-09

申请号：US311901

申请日：1989-02-17

申请人： Hideya Takeo ,  Kazuo Shimura

发明人： Hideya Takeo ,  Kazuo Shimura

IPC分类号： G06K9/32

CPC分类号： G06K9/32

摘要： A method for recognizing the layout pattern of radiation images comprises the steps of preparing two-valued masks, each composed of a two-valued signal representing a layout pattern for radiation images which are to be stored on a stimulable phosphor sheet, and obtaining a preliminary read-out image signal by carrying out preliminary read out on a stimulable phosphor sheet on which radiation images have been stored. The layout pattern of the radiation images is recognized by converting the preliminary read-out image signal into a two-valued image signal, calculating rating values, which represent the degree of pattern matching between the two-valued image signal and the two-valued masks, finding the highest rating value that represents the highest degree of pattern matching among the rating values, and comparing the highest rating value with a predetermined value representing a predetermined degree of pattern matching.

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。

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。