公开(公告)号：US4356398A

公开(公告)日：1982-10-26

申请号：US168800

申请日：1980-07-11

申请人： Takao Komaki ,  Seiji Matsumoto ,  Masamitsu Ishida

发明人： Takao Komaki ,  Seiji Matsumoto ,  Masamitsu Ishida

IPC分类号： G03C5/16 ,  G01T1/11 ,  H04N1/40

CPC分类号： G03C5/16

摘要： In a radiographic image recording system in which a stimulable phosphor plate is exposed to X-rays to record a radiographic latent image therein, the stimulable phosphor plate is exposed to stimulating rays thereafter to emit light according to the stored energy of X-rays, and the emitted light is detected by a photodetector and converted to an image signal to be used for finally recording a visible image on a photosensitive film or the like, a plurality of stimulable phosphor plates are used for recording radiographic images of an object viewed from the same direction. The image signals read out from the plurality of stimulable phosphor plates are superposed to obtain an averaged image signal. The averaged image signal is then subjected to a gradation process for enhancing the contrast of the image.

摘要翻译： 在其中可刺激的荧光体板暴露于X射线以在其中记录放射线照相潜像的放射线照相图像记录系统中，可刺激的荧光体板暴露于其后根据存储的X射线的能量发光，并且 发射的光被光电检测器检测并转换为用于最终在感光膜等上记录可见图像的图像信号，使用多个可激发的荧光板来记录从其观察的物体的放射线照相图像 方向。 将从多个可激发的荧光体板读出的图像信号叠加以获得平均的图像信号。 然后对平均的图像信号进行用于增强图像的对比度的灰度处理。

公开(公告)号：US4121101A

公开(公告)日：1978-10-17

申请号：US744119

申请日：1976-11-22

申请人： Seiji Matsumoto ,  Isoji Takahashi ,  Takao Komaki ,  Masamitsu Ishida ,  Tomotaka Kozeki ,  Kazuo Horikawa ,  Kozi Shimanuki

发明人： Seiji Matsumoto ,  Isoji Takahashi ,  Takao Komaki ,  Masamitsu Ishida ,  Tomotaka Kozeki ,  Kazuo Horikawa ,  Kozi Shimanuki

IPC分类号： G03G15/054 ,  G03G13/00

CPC分类号： G03G15/0545 ,  Y10S430/168

摘要： In Reiss chamber method or ionography, or in a method of modification or combination of these methods wherein an electrostatic latent image of an object irradiated with radiations such as X-rays is formed on an insulating image recording layer, a photoconductive material is used as the image recording layer. The charge carried on the photoconductive image recording layer is partly neutralized by the radiations received thereby. In an embodiment, a fluorescent layer is attached to the photoconductive image recording layer to accelerate the neutralization of the charge when the recording layer is exposed to the radiations. In another embodiment, the photoconductive material has a property that the photoconductivity increases as the strength of an electric field applied thereacross increases, and the image recording layer made of such a photoconductive material is uniformly exposed to light simultaneously with or after the irradiation of the radiations.

摘要翻译： 或者在Reiss室法或电离法中，或在这些方法的改进或组合的方法中，其中在绝缘图像记录层上形成用诸如X射线的辐射照射的物体的静电潜像，因此使用光导材料作为 图像记录层。 光电导图像记录层上承载的电荷被其接收的辐射部分地中和。 在一个实施例中，荧光层附着到光导图像记录层，以在记录层暴露于辐射时加速电荷的中和。 在另一个实施方案中，光电导材料具有随着施加在其上的电场强度增加而导致光电导率增加的性质，并且由这种感光材料制成的图像记录层在辐射照射之后或之后均匀地暴露于光 。

公开(公告)号：US4317179A

公开(公告)日：1982-02-23

申请号：US106734

申请日：1979-12-26

申请人： Hisatoyc Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

发明人： Hisatoyc Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

IPC分类号： G01T1/29 ,  H04N1/409 ,  H04N1/40

CPC分类号： H04N1/4092 ,  G01T1/2014

摘要： A method of and apparatus for processing a radiographic image in a radiographic image copying system in which an original radiograph scanned with the light beam and the image information of the radiograph is read out by a detector which gives an output to be processed and used for reproducing an image on a recording material. In the processing of the detected output, an operation represented by a formulaD'=Dorg+.beta.(Dorg-Dus)is conducted, where Dorg is the original image density detected by the detector, .beta. is an emphasis coefficient, and Dus is an unsharp mask density corresponding to a super-low spatial frequency at every scanning point. The unsharp masking process may be performed together with a gradation process, reduction of image size, smoothing process and the like. Further, the emphasis coefficient may be varied with either the original image density Dorg or the unsharp mask signal Dus.

摘要翻译： 一种用于处理放射线照相图像复制系统中的放射线照相图像的方法和装置，其中用光束扫描的原始X射线和放射线照片的图像信息由检测器读出，该检测器给出要被处理并用于再现的输出 记录材料上的图像。 在检测到的输出的处理中，进行由公式D'= Dorg +β（Dorg-Dus）表示的操作，其中Dorg是由检测器检测到的原始图像浓度，β是强调系数，Dus是不清晰度 掩模密度对应于每个扫描点的超低空间频率。 可以与灰度处理，图像尺寸的减小，平滑处理等一起执行不清晰的掩蔽处理。 此外，可以利用原始图像浓度Dorg或钝化掩模信号Dus来改变强调系数。

公开(公告)号：US4340911A

公开(公告)日：1982-07-20

申请号：US123697

申请日：1980-02-22

申请人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

发明人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

IPC分类号： G03C5/17 ,  A61B6/00 ,  G03C5/16 ,  G06T1/00 ,  H04N1/407 ,  H04N5/32

CPC分类号： H04N1/4072

摘要： A method of and apparatus for processing a mammogram in a mammogram copying system in which an original mammogram is scanned with a scanning light beam and the light transmitted through the mammogram is detected by a photodetector which gives an output to be processed and used for recording a visible image on a recording medium. The image gradation of the mammogram is processed. The gradation processing is characterized in that the minimum density of the glandular tissue of the mammogram is lowered down to the level of the fog density to raise the contrast of the mammogram.

摘要翻译： 一种用于在乳腺X线照相复印系统中处理乳房X线照片的方法和装置，其中使用扫描光束扫描原始乳房X线照片，并且通过给予要处理的输出并用于记录的乳腺X光检查的光被检测到 可视图像在记录介质上。 处理乳房X线照片的图像等级。 灰度处理的特征在于乳房X线照片的腺体组织的最小密度降低到雾密度的水平，以提高乳房X线照片的对比度。

公开(公告)号：US4320296A

公开(公告)日：1982-03-16

申请号：US168803

申请日：1980-07-11

申请人： Masamitsu Ishida ,  Hisatoyo Kato ,  Seiji Matsumoto

发明人： Masamitsu Ishida ,  Hisatoyo Kato ,  Seiji Matsumoto

IPC分类号： G03B42/02 ,  G01N23/04 ,  G01T1/29 ,  G03B41/00 ,  G03C5/16 ,  G06T1/00 ,  G11B7/00 ,  G11B7/004

CPC分类号： G01T1/2014 ,  G01N23/043 ,  G03C5/16

摘要： In a radiation image recording system in which a stimulable phosphor sheet is exposed to an imagewise radiation to record a latent image of a radiation image in the form of stored energy of radiation, the stimulable phosphor sheet is then exposed to stimulating rays to emit light according to the stored energy of radiation, and the emitted light is detected to obtain an image signal, light spontaneously emitted from the stimulable phosphor sheet upon exposure to the imagewise radiation is detected. Then, image processing data such as the maximum value, the minimum value and/or the average value of the stored energy level over the entire area of the image are calculated based on the amount of the light, and is recorded on the stimulable phosphor sheet or the cassette thereof. The image processing data are used for processing the image signal when recording a final image on a recording material.

摘要翻译： 在其中将可刺激的荧光粉片暴露于成像辐射以以存储的辐射能量的形式记录放射线图像的潜像的放射线图像记录系统中，然后将可刺激的荧光体片暴露以刺激光线发射光， 检测放射线的存储能量，并且检测发射的光以获得图像信号，检测在暴露于成像辐射时从可刺激的磷光体片发射的光。 然后，基于光量计算图像的整个区域上的存储能量水平的最大值，最小值和/或平均值等图像处理数据，并记录在可刺激的荧光体片材上 或其盒。 当在记录材料上记录最终图像时，图像处理数据用于处理图像信号。

公开(公告)号：US4310886A

公开(公告)日：1982-01-12

申请号：US106733

申请日：1979-12-26

申请人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

发明人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

IPC分类号： G03B42/02 ,  A61B6/00 ,  G01T1/29 ,  G06F19/00 ,  G06T1/00 ,  G06T5/00 ,  H04N1/387 ,  H04N1/407 ,  G01T1/20

CPC分类号： G01T1/2014 ,  H04N1/4072

摘要： A method and apparatus for processing a radiation image in a radiation image recording system in which a stimulable phosphor is stimulated with a scanning stimulating ray and the light emitted from the stimulable phosphor upon stimulation by the stimulating ray is detected by a photodetector which gives an output to be processed and used for recording a visible image on a recording medium. The radiation image of the frontal chest is gradation processed. The gradation processing is characterized in that the density at the boundary of the heart and the lungs of the image on the recording medium is lowered to lower the contrast of the heat and raise the contrast of the lungs.

摘要翻译： 一种用于在放射线图像记录系统中处理放射线图像的方法和装置，其中用刺激光线刺激可刺激磷光体，并且由刺激光线刺激时从可刺激磷光体发射的光被检测到，该光电检测器给出输出 被处理并用于在记录介质上记录可见图像。 正面胸部的放射线图像进行灰度处理。 灰度处理的特征在于，降低记录介质上的图像的心脏和肺的边界处的密度以降低热的对比度并提高肺的对比度。

公开(公告)号：US4302672A

公开(公告)日：1981-11-24

申请号：US123578

申请日：1980-02-22

申请人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

发明人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

IPC分类号： G03B42/02 ,  A61B6/00 ,  G01T1/29 ,  G06T1/00 ,  G21K4/00 ,  H04N1/407 ,  H04N5/93 ,  G03C5/16 ,  G01T1/11 ,  G06F15/42

CPC分类号： H04N1/4072 ,  G01T1/2014 ,  G21K4/00

摘要： A method and apparatus for processing a radiation image in a radiation image recording system in which a stimulable phosphor is stimulated with a scanning stimulating ray and the light emitted from the stimulable phosphor upon stimulation by the stimulating ray is detected by a photodetector which gives an output to be processed and used for recording a visible image on a recording medium. The radiation image of the frontal chest is gradation processed. The gradation processing is characterized in that the density between the densities of the spine and the heart of the image on the recording medium is lowered to lower the contrast of the spine and raise the contrast of the heart and the lungs.

摘要翻译： 一种用于在放射线图像记录系统中处理放射线图像的方法和装置，其中用刺激光线刺激可刺激磷光体，并且由刺激光线刺激时从可刺激磷光体发射的光被检测到，该光电检测器给出输出 被处理并用于在记录介质上记录可见图像。 正面胸部的放射线图像进行灰度处理。 灰度处理的特征在于，降低记录介质上的脊柱和图像心脏之间的密度以降低脊柱的对比度并提高心脏和肺的对比度。

公开(公告)号：US4387428A

公开(公告)日：1983-06-07

申请号：US220780

申请日：1980-12-29

申请人： Masamitsu Ishida ,  Hisatoyo Kato ,  Seiji Matsumoto

发明人： Masamitsu Ishida ,  Hisatoyo Kato ,  Seiji Matsumoto

IPC分类号： G03B42/02 ,  A61B6/00 ,  B29C65/00 ,  G03C5/16 ,  G06T1/00 ,  G06T5/00 ,  H04N1/04 ,  H04N1/409 ,  H04N1/40

CPC分类号： H04N1/409 ,  B29C65/002 ,  G03C5/16

摘要： A method of and apparatus for processing a radiation image in a radiation image recording system in which a stimulable phosphor is stimulated with a scanning stimulating ray and the light emitted from the stimulable phosphor upon stimulation by the stimulating ray is detected by a detector which gives an output to be processed and used for recording a visible image on a recording material. In the processing of the detected output, an operation represented by a formulaS'=Sorg+F(X)is conducted at every scanning point, where Sorg is the original image signal detected by the detector, Sus is an unsharp mask signal corresponding to a super-low spatial frequency, X is Sorg-Sus, and F(X) is a monotonically increasing function which satisfies the condition of F'(X.sub.1).gtoreq.F'(X.sub.2).gtoreq.0 for arbitrary values X.sub.1, X.sub.2 of X (.vertline.X.sub.1 .vertline. F'(X.sub.2) when .vertline.X.sub.1 .vertline.

摘要翻译： 一种用于处理放射线图像记录系统中的放射线图像的方法和装置，其中用刺激光线刺激可刺激的荧光体，并且通过刺激射线刺激从可刺激磷光体发射的光被检测器检测到， 输出被处理并用于将可见图像记录在记录材料上。 在检测出的输出的处理中，由Sorg = Sorg + F（X）表示的动作在每个扫描点进行，其中Sorg是检测器检测到的原始图像信号，Sus是对应于 一个超低空间频率，X是Sorg-Sus，F（X）是任意值X1满足F'（X1）> / = F'（X2）> / = 0的条件的单调递增函数， X（| X 1 | <| X 2 |）的X 1，并且其中当| X 1 | <| X 0 |时，存在满足条件F'（X1）> F'（X2）的X的至少一个特定值X0 | X2|。

公开(公告)号：US4315318A

公开(公告)日：1982-02-09

申请号：US104855

申请日：1979-12-18

申请人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

发明人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

IPC分类号： H04N1/409 ,  H04N1/40

CPC分类号： H04N1/4092

摘要： A method and apparatus for processing a radiation image in a radiation image recording system in which a stimulable phosphor is stimulated with a scanning stimulating beam and the light emitted from the stimulable phosphor upon stimulation by the stimulating beam is detected by a detector which generates an output which is processed and used for recording a visible image on a recording material. In the processing of the detected output, an operation represented by a formulaS'=Sorg+.beta. (Sorg--Sus)is conducted, where Sorg is the original image signal detected by the detector, .beta. is an emphasis coefficient, and Sus is an unsharp mask signal corresponding to a super-low spatial frequency at every scanning point. The unsharp masking process may be performed together with a gradation process, reduction of image size, smoothing process and the like. Further, the emphasis coefficient may be varied with either the original image signal Sorg or the unsharp mask signal Sus.

摘要翻译： 一种用于处理放射线图像记录系统中的辐射图像的方法和装置，其中用扫描激发光束刺激可刺激的荧光体，并且由刺激光束刺激时从可刺激磷光体发射的光被检测器检测，该检测器产生输出 其被处理并用于在记录材料上记录可见图像。 在检测到的输出的处理中，进行由公式S'= Sorg +β（Sorg-Sus）表示的操作，其中Sorg是由检测器检测到的原始图像信号，β是强调系数，并且Sus是不清晰的 屏蔽信号对应于每个扫描点的超低空间频率。 可以与灰度处理，图像尺寸的减小，平滑处理等一起执行不清晰的掩蔽处理。 此外，加重系数可以随着原始图像信号Sorg或钝化掩模信号Sus而变化。

公开(公告)号：US4276473A

公开(公告)日：1981-06-30

申请号：US124770

申请日：1980-02-26

申请人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

发明人： Hisatoyo Kato ,  Masamitsu Ishida ,  Seiji Matsumoto

IPC分类号： G03B42/02 ,  A61B6/00 ,  G01T1/29 ,  G06T1/00 ,  H04N1/04 ,  H04N1/407 ,  H04N5/93 ,  G03C5/16 ,  G01T1/11

CPC分类号： H04N1/4072 ,  G01T1/2014

摘要： In a radiation image recording system in which a radiation image is once recorded in a stimulable phosphor and then read out and reproduced on a recording material, the gradation of the radiation image is processed to enhance the diagnostic efficiency and accuracy of the image. The radiation image is read out by scanning the stimulable phosphor by a stimulating ray to cause the phosphor to emit light of the amount corresponding to the radiation energy stored in the phosphor. The emitted light is detected and converted to an electric signal. The level of the electric signal is converted in such a way that the maximum level of the signal corresponding to the maximum density of the radiation image is converted to a level resulting in the optical density of 1.5 to 2.8 in the reproduced image on a recording material and the minimum level corresponding to the minimum density is converted to a level resulting in the optical density of fog density of the recording material to fog density plus 0.3, and a density curve in a coordinate having an ordinate representing the optical density and an abscissa representing the level of the electric signal has a positive gradient from the minimum level to the maximum level.

摘要翻译： 在辐射图像记录系统中，其中放射线图像被一次记录在可刺激的荧光体中，然后在记录材料上读出和再现，处理放射线图像的灰度以增强图像的诊断效率和精度。 通过用刺激光线扫描可刺激的荧光体来读出放射线图像，使荧光体发射对应于存储在荧光体中的辐射能量的光。 发射的光被检测并转换成电信号。 电信号的电平被转换成使得与辐射图像的最大密度相对应的信号的最大电平被转换成在记录材料上的再现图像中导致1.5至2.8的光密度的电平 并且将与最小密度相对应的最小电平转换为导致记录材料的雾密度的光密度对雾浓度加0.3的水平，并且具有表示光密度的纵坐标的坐标中的密度曲线和表示 电信号的电平具有从最小电平到最大电平的正梯度。