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1. 发明授权

US4950894A Radiation image read-out method 失效
标题翻译：辐射图像读出方法
公开(公告)号：US4950894A
公开(公告)日：1990-08-21
申请号：US327459
申请日：1989-03-22
申请人： Makoto Hara , Yuuma Adachi , Masamitsu Ishida , Nobuyoshi Nakajima
发明人： Makoto Hara , Yuuma Adachi , Masamitsu Ishida , Nobuyoshi Nakajima
IPC分类号： G01T1/29 , G06T5/40
CPC分类号： G01T1/2014 , G06T5/009 , G06T5/40
摘要： In a method of reading out a radiation image stored in a stimulable phosphor sheet, preliminary read-out for approximately detecting the image is conducted. A cumulative histogram of the image information is created, read-out conditions in the final read-out are corrected based on a characteristic value of the cumulative histogram, then the final read-out is conducted using the corrected conditions. Alternatively, a standard image information range is determined from the characteristic value, and the read-out conditions are adjusted so that the standard range corresponds to a predetermined electronic signal range. In addition, in the read-out method where gradation processing is performed for electronic image signals obtained by photoelectrically detecting the phosphor light emitted by the sheet, histogram of the image signals is created, and a desired image signal range is determined therefrom. A cummulative histogram then is created, the desired range is corrected based on a characteristic value of the cumulative histogram, and gradation processing conditions are adjusted so that the corrected desired signal range corresponds to a predetermined electronic signal range. Alternatively, a standard signal range is determined based on the characteristic value, and gradation processing conditions are adjusted so that the standard range corresponds to a predetermined electronic signal range.
摘要翻译：在读出存储在可刺激的荧光体片中的放射线图像的方法中，进行用于大致检测图像的初步读出。创建图像信息的累积直方图，基于累积直方图的特征值校正最终读出中的读出条件，然后使用校正条件进行最终读出。或者，根据特征值确定标准图像信息范围，并且调整读出条件使得标准范围对应于预定的电子信号范围。此外，在对通过光电检测由片材发射的荧光体光获得的电子图像信号进行灰度处理的读出方法中，产生图像信号的直方图，并且由此确定期望的图像信号范围。然后创建累积直方图，基于累积直方图的特征值校正期望的范围，并且调整灰度处理条件，使得校正的期望信号范围对应于预定的电子信号范围。或者，基于特征值来确定标准信号范围，并且调整灰度处理条件使得标准范围对应于预定的电子信号范围。

2. 发明授权

US4816680A 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：US4816680A
公开(公告)日：1989-03-28
申请号：US787847
申请日：1985-10-16
申请人： Nobuyoshi Nakajima , Yuuma Adachi , Masamitsu Ishida
发明人： Nobuyoshi Nakajima , Yuuma Adachi , Masamitsu Ishida
IPC分类号： G01T1/29
CPC分类号： G01T1/2014
摘要： A radiation image recording and read-out apparatus using stimulable phosphor sheets. The apparatus has a circulation path along which the stimulable phosphor sheets are conveyed. An image recording section, an image read-out section and image erasing section are provided. An imput means is provided for inputting the kind of recording and the exposure condition of the radiation, and a control means is used for determining the read-out condition based on the input information given by the input means. The apparatus optionally has an image processing section and the control means may also be used for determining the image processing condition based on the information input be the input means.
摘要翻译：一种使用可刺激的荧光片的放射线图像记录和读出装置。该装置具有可刺激的磷光体片沿其传送的循环路径。提供图像记录部分，图像读出部分和图像擦除部分。提供输入装置用于输入辐射的种类和曝光条件，并且控制装置用于基于由输入装置给出的输入信息来确定读出条件。该装置可选地具有图像处理部分，并且控制装置还可以用于基于作为输入装置的信息输入来确定图像处理条件。

3. 发明授权

US4931644A Method of adjusting radiation image read-out conditions 失效
标题翻译：调整辐射图像读出条件的方法
公开(公告)号：US4931644A
公开(公告)日：1990-06-05
申请号：US164654
申请日：1988-03-07
申请人： Yuuma Adachi , Nobuyoshi Nakajima , Masamitsu Ishida
发明人： Yuuma Adachi , Nobuyoshi Nakajima , Masamitsu Ishida
IPC分类号： G01T1/29 , G03C5/16 , H04N5/30
CPC分类号： G03C5/16 , G01T1/2014 , H04N5/30
摘要： In a method of adjusting read-out conditions for a radiation image stored on a stimulable phosphor sheet by limiting the radiation exposure field, digital image signals at respective positions on the stimulable phosphor sheet for detected on the basis of image information obtained by preliminary read-out. The digital image signals are subjected to a differentiation processing, and the radiation exposure field on the stimulable phosphor sheet is detected by use of the differentiated values obtained thereby. The read-out conditions in final read-out are adjusted on the basis of the image information obtained within the detected radiation exposure field by the preliminary read-out.

4. 发明授权

US4851678A Method of adjusting radiation image read-out conditions 失效
标题翻译：调整辐射图像读出条件的方法
公开(公告)号：US4851678A
公开(公告)日：1989-07-25
申请号：US760862
申请日：1985-07-31
申请人： Yuuma Adachi , Nobuyoshi Nakajima , Masamitsu Ishida
发明人： Yuuma Adachi , Nobuyoshi Nakajima , Masamitsu Ishida
IPC分类号： G01T1/29 , G03C5/16 , H04N5/30
CPC分类号： G03C5/16 , G01T1/2014 , H04N5/30
摘要： In a method of adjusting read-out conditions for a radiation image stored on a stimulable phosphor sheet by limiting the radiation exposure field, digital image signals at respective positions on the stimulable phosphor sheet are detected on the basis of image information obtained by preliminary read-out. The digital image signals are subjected to a differentiation processing, and the radiation exposure field on the stimulable phosphor sheet is detected by use of the differentiated values obtained thereby. The read-out conditions in final read-out are adjusted on the basis of the image information obtained within the detected radiation exposure field by the preliminary read-out.
摘要翻译：在通过限制辐射曝光场来调节存储在可刺激的荧光体片上的放射线图像的读出条件的方法中，基于通过初步读出的图像获得的图像信息来检测可刺激的磷光体片上各个位置处的数字图像信号，出来对数字图像信号进行微分处理，并且通过使用由此得到的微分值来检测可刺激的荧光体片上的辐射曝光场。基于通过初步读出在检测到的辐射曝光区域内获得的图像信息来调整最终读出中的读出条件。

5. 发明授权

US4816690A Method and apparatus for radiation image recording and read-out including control of read-out in accordance with irradiation field definition 失效
标题翻译：用于辐射图像记录和读出的方法和装置，包括根据照射场定义的读出控制
公开(公告)号：US4816690A
公开(公告)日：1989-03-28
申请号：US676957
申请日：1984-11-30
申请人： Yuuma Adachi , Masamitsu Ishida
发明人： Yuuma Adachi , Masamitsu Ishida
IPC分类号： G01T1/29 , H04N1/387 , G01T1/105
CPC分类号： H04N1/3872 , G01T1/2014
摘要： In a radiation image recording and read-out system, a radiation image is recorded on a stimulable phosphor sheet by use of an irradiation field stop for defining an irradiation field. The stimulable phosphor sheet is then exposed to stimulating rays which cause it to emit light in proportion to the radiation energy stored. The emitted light is photoelectrically detected. The radiation image read-out region of the stimulable phosphor sheet is limited within the irradiation field. When preliminary read-out is conducted prior to final read-out by use of stimulating rays having stimulation energy lower than the stimulation energy of stimulating rays used in the final read-out, the radiation image read-out region in the preliminary read-out is limited within the irradiation field.
摘要翻译：在放射线图像记录和读出系统中，通过使用用于限定照射场的照射场停止来将辐射图像记录在可刺激的荧光体片上。然后将可刺激的荧光体片暴露于刺激光线，使其与存储的辐射能量成比例地发光。发出的光线被光电检测。可刺激的荧光体片的辐射图像读出区域在照射场内受到限制。在通过使用刺激能量低于最终读出中使用的刺激光线的刺激能量的刺激光线进行最终读出之前进行初步读出时，初步读出中的放射线图像读出区域在照射场内受到限制。

6. 发明授权

US4816677A Method and apparatus for radiation image recording and read-out including data processing based on a portion of image data defined by an irradiation field stop 失效
标题翻译：用于辐射图像记录和读出的方法和装置，包括基于由照射场停止定义的图像数据的一部分的数据处理
公开(公告)号：US4816677A
公开(公告)日：1989-03-28
申请号：US676911
申请日：1984-11-30
申请人： Yuuma Adachi , Masamitsu Ishida
发明人： Yuuma Adachi , Masamitsu Ishida
IPC分类号： G01T1/29 , G01T1/105
CPC分类号： G01T1/2014
摘要： In a radiation image recording and read-out system, a radiation image is recorded on a stimulable phosphor sheet by use of an irradiation field stop for defining an irradiation field. The stimulable phosphor sheet is then exposed to stimulating rays which cause it to emit light in proportion to the radiation energy stored. The emitted light is photoelectrically detected, and a data processing is conducted. The data processing is conducted only on image data within the irradiation field. When preliminary read-out is conducted prior to final read-out by use of stimulating rays having stimulation energy lower than stimulation energy of stimulating rays used in the final read-out, the data processing is conducted in the preliminary read-out only on the image data within the irradiation field.
摘要翻译：在放射线图像记录和读出系统中，通过使用用于限定照射场的照射场停止来将辐射图像记录在可刺激的荧光体片上。然后将可刺激的荧光体片暴露于刺激光线，使其与存储的辐射能量成比例地发光。发射的光被光电检测，并且进行数据处理。仅对照射场内的图像数据进行数据处理。在通过使用刺激能量低于最终读出中使用的刺激光线的刺激能量的刺激光线进行最终读出之前进行初步读出时，仅在初步读出中进行数据处理照射场内的图像数据。

7. 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。

8. 发明授权

US4943723A Radiation image read-out method 失效
标题翻译：辐射图像读出方法
公开(公告)号：US4943723A
公开(公告)日：1990-07-24
申请号：US217022
申请日：1988-07-11
申请人： Yuuma Adachi , Nobuyoshi Nakajima
发明人： Yuuma Adachi , Nobuyoshi Nakajima
IPC分类号： G01T1/29 , G03C5/16
CPC分类号： G03C5/16 , G01T1/2014
摘要： In a radiation image read-out method wherein preliminary read-out is conducted prior to final read-out for adjusting final read-out conditions and/or image processing conditions for a plurality of stimulable phosphor sheets carrying a radiation image of the same object recorded thereon by combination image recording, the preliminary read-out and the final read-out are conducted only for the first stimulable phosphor sheet which is first subjected to the image read-out, and only the final read-out is conducted for the other stimulable phosphor sheets by use of the read-out conditions and/or image processing conditions adjusted on the basis of the image input information obtained by the preliminary read-out of the first stimulable phosphor sheet.
摘要翻译：在放射线图像读出方法中，其中在最终读出之前进行初步读出以调整用于记录的多个可刺激的磷光体片的相对物体的最终读出条件和/或图像处理条件通过组合图像记录在其上进行初步读出和最终读出，仅针对首先进行图像读出的第一可激发荧光粉片，并且仅针对另一个可刺激的荧光体进行最终读出通过使用基于通过初步读出第一可激发荧光体片获得的图像输入信息调整的读出条件和/或图像处理条件来生成荧光体片。

9. 发明授权

US4629891A 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：US4629891A
公开(公告)日：1986-12-16
申请号：US774688
申请日：1985-09-11
申请人： Nobuyoshi Nakajima , Yuuma Adachi , Toshitaka Agano
发明人： Nobuyoshi Nakajima , Yuuma Adachi , Toshitaka Agano
IPC分类号： H04N1/407 , A61B6/00 , G01T1/29 , G03B42/02 , H04N1/04 , G03C5/16
CPC分类号： G01T1/2014
摘要： In a radiation image read-out method and apparatus wherein preliminary read-out is conducted prior to final read-out for adjusting final read-out conditions and/or image processing conditions for a radiation image stored in a stimulable phosphor sheet, the light detection range of a light detector for detecting light emitted by the stimulable phosphor sheet upon exposure to stimulating rays in the preliminary read-out is changed in accordance with radiation image recording conditions, so that the emitted light is detected over the whole light emission intensity range fixed by the image recording conditions.
摘要翻译：在放射线图像读出方法和装置中，在最终读出之前进行初步读出以调整存储在可刺激的磷光体片中的放射线图像的最终读出条件和/或图像处理条件，光检测根据放射线图像记录条件，根据放射线图像记录条件改变用于在暴露于预备读出中的刺激光线时检测由可刺激荧光粉片发射的光的光检测器的范围，使得在固定的整个发光强度范围通过图像记录条件。

10. 发明授权

US4864132A Radiation image read-out apparatus 失效
标题翻译：辐射图像读出装置
公开(公告)号：US4864132A
公开(公告)日：1989-09-05
申请号：US789238
申请日：1985-10-18
申请人： Yuuma Adachi , Nobuyoshi Nakajima
发明人： Yuuma Adachi , Nobuyoshi Nakajima
IPC分类号： H04N1/113 , A61B6/00 , G03B42/02 , H04N1/04
CPC分类号： G03B42/02
摘要： In a radiation image read-out apparatus wherein preliminary read-out is ordinarily conucted prior to final read-out for adjusting final read-out conditions and/or image processing conditions for radiation images stored on stimulable phosphor sheets, the preliminary read-out can be omitted and the final read-out and image processing be conducted on the basis of fixed conditions when necessary to obtain reproduced images with the same contrast.
摘要翻译：在放射图像读出装置中，其中预先读出通常在最终读出之前被设计用于调节最终读出条件和/或存储在可刺激的磷光体片上的辐射图像的图像处理条件，预备读出可以在必要时，根据固定条件进行最终读出和图像处理，以获得具有相同对比度的再现图像。

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