专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5029083A Energy subtraction processing method using weighted average of plural stacked sheets for creating high energy image 失效
标题翻译：能量减法处理方法使用加权平均多张堆叠片材来产生高能量图像
公开(公告)号：US5029083A
公开(公告)日：1991-07-02
申请号：US467293
申请日：1990-01-16
申请人： Kazuo Shimura , Nobuyoshi Nakajima , Masamitsu Ishida
发明人： Kazuo Shimura , Nobuyoshi Nakajima , Masamitsu Ishida
IPC分类号： A61B6/00 , G01T1/00 , G03B42/02 , G06T5/50 , H04N7/18
CPC分类号： G06T5/50 , G03B42/02
摘要： In an energy subtraction processing for radiation images, a plurality of stimulable phosphor sheets laid one upon the other are simultaneously exposed to a radiation of high energy passing through an object, and then a different stimulable phosphor sheet is exposed to a radiation of low energy passing through the same object. Digital image signals detected from the stimulable phosphor sheets exposed to the high energy radiation are weighted and subjected to arithmetic averaging. A subtraction processing is carried out between an image signal obtained by the arithmetic averaging and an image signal detected from the stimulable phosphor sheet exposed to the low energy radiation.
摘要翻译：在放射线图像的能量减除处理中，将多个彼此叠置的可激发的荧光体片同时暴露于穿过物体的高能量的辐射，然后将不同的可刺激的荧光体片暴露于低能量通过的辐射通过相同的对象。从暴露于高能量辐射的可刺激的磷光体板检测到的数字图像信号被加权并进行算术平均。在通过算术平均获得的图像信号和从暴露于低能量辐射的可激励荧光粉片检测到的图像信号之间进行减法处理。

2. 发明授权

US5028781A Density correcting method and apparatus for subtraction image 失效
标题翻译：用于减影图像的密度校正方法和装置
公开(公告)号：US5028781A
公开(公告)日：1991-07-02
申请号：US116196
申请日：1987-11-03
申请人： Kazuo Shimura , Nobuyoshi Nakajima , Masamitsu Ishida
发明人： Kazuo Shimura , Nobuyoshi Nakajima , Masamitsu Ishida
IPC分类号： G01T1/29 , G06T5/50 , H04N1/407
CPC分类号： G06T5/50 , G01T1/2014 , H04N1/4074
摘要： In an energy subtraction processing for radiation images conducted by use of stimulable phosphor sheets, a characteristic value of a difference signal obtained by a subtraction processing of digital image signals detected from the stimulable phosphor sheets carrying radiation images stored therein is calculated. When the difference signal is subjected to a gradation processing, the characteristic value is made to correspond to a predetermined density of a reproduced image by uniformly converting the difference signal or by correcting a gradation conversion table used for the gradation processing.
摘要翻译：在通过使用可刺激的荧光体片进行的放射线图像的能量减除处理中，计算通过对从携带其中存储的辐射图像的可刺激的磷光体片材检测的数字图像信号的减法处理而获得的差分信号的特征值。当差分信号进行灰度处理时，通过均匀地转换差分信号或校正用于灰度处理的灰度转换表，使特征值对应于再现图像的预定浓度。

3. 发明授权

US4896037A High-speed image recording apparatus for energy subtraction processing 失效
标题翻译：用于能量减法处理的高速图像记录装置
公开(公告)号：US4896037A
公开(公告)日：1990-01-23
申请号：US912208
申请日：1986-09-25
申请人： Kazuo Shimura , Nobuyoshi Nakajima , Masamitsu Ishida
发明人： Kazuo Shimura , Nobuyoshi Nakajima , Masamitsu Ishida
IPC分类号： A61B6/00 , G01N23/04 , G01T1/00 , G03B42/02 , H05G1/62
CPC分类号： G03B42/021
摘要： A high-speed image recording apparatus comprises a sheet changer for changing a stimulable phosphor sheet at an image recording position, a radiation source drive controller, and a filter changer for changing a radiation filter on a radiation passage between a radiation source and a stimulable phosphor sheet at each image recording step. The sheet changer, the radiation source drive controller and the filter changer are activated by signals sent from a controller to load the stimulable phosphor sheet to the image recording position, to change over the radiation filter, and then to emit radiation to the stimulable phosphor sheet via an object, thereby recording a high energy image and a low energy image of good energy discrimination in stimulable phosphor sheets.
摘要翻译：高速图像记录装置包括用于在图像记录位置改变可刺激的荧光体片材的片材更换器，辐射源驱动控制器和用于改变辐射源和可刺激荧光体之间的辐射通道上的辐射滤光器的滤光器更换器在每个图像记录步骤。片材更换器，辐射源驱动控制器和滤波器更换器由从控制器发送的信号激活，将可刺激的荧光粉片装载到图像记录位置，以转换辐射过滤器，然后将辐射发射到可刺激的磷光体片从而在可刺激的荧光体片材中记录高能量图像和良好能量鉴别的低能量图像。

4. 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。

5. 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。

6. 发明授权

US4985630A Radiation image read-out apparatus and reproduction condition designating apparatus 失效
标题翻译：辐射图像读出装置和再现条件指定装置
公开(公告)号：US4985630A
公开(公告)日：1991-01-15
申请号：US171242
申请日：1988-03-18
申请人： Nobuaki Higaski , Masamitsu Ishida , Nobuyoshi Nakajima
发明人： Nobuaki Higaski , Masamitsu Ishida , Nobuyoshi Nakajima
IPC分类号： G01T1/29 , H04N1/407 , H04N1/409 , G01N23/04
CPC分类号： H04N1/4072 , G01T1/2014 , H04N1/409
摘要： A radiation image read-out apparatus comprises a read-out device for detecting a radiation image recorded on a recording medium and generating an electric image signal, an input device for entering information concerning the image recording portion of an object and the image recording method, and a control device for adjusting read-out conditions on the basis of the information entered by the input device and feeding the adjusted read-out conditions to the read-out device. A reproduction condition designating apparatus is constituted by the input device, the control device, a device for displaying the reproduction conditions adjusted by the control device, and a correction input device for correcting the reproduction conditions displayed by the display device.
摘要翻译：放射线图像读取装置包括读出装置，用于检测记录在记录介质上的放射线图像并产生电图像信号;输入装置，用于输入关于物体的图像记录部分的信息和图像记录方法; 以及控制装置，用于根据由输入装置输入的信息调整读出条件，并将调整后的读出条件送给读出装置。再现条件指定装置由输入装置，控制装置，用于显示由控制装置调节的再现条件的装置和用于校正由显示装置显示的再现条件的校正输入装置构成。

7. 发明授权

US4914295A Radiation image read-out and image signal storing apparatus 失效
标题翻译：辐射图像读出和图像信号存储装置
公开(公告)号：US4914295A
公开(公告)日：1990-04-03
申请号：US302992
申请日：1989-01-30
申请人： Kazuo Shimura , Masamitsu Ishida
发明人： Kazuo Shimura , Masamitsu Ishida
IPC分类号： G01T1/29 , G06T5/40
CPC分类号： G01T1/2014 , G06T5/009 , G06T5/40 , G06T2207/10116
摘要： An apparatus for photoelectrically detecting a radiation image of an object stored on a stimulable phosphor sheet by exposure to a radiation passing through the object and storing detected image signals comprises a circuit for recognizing an irradiation field on the stimulable phosphor sheet, and an image signal selection circuit for receiving irradiation field information generated by the irradiation field recognition circuit and selecting only the image signals inside of the irradiation field from the read-out image signals. Or, the apparatus comprises a section for creating a histogram of the read-out image signals, a histogram analysis section for determining a range of the read-out image signals outside of a peak region arising in the vicinity of the maximum signal value or the minimum signal value in the histogram, and an image signal selection circuit for receiving the output of the histogram analysis section and selecting only the image signals within the range from the read-out image signals.
摘要翻译：一种用于通过暴露于穿过物体的辐射并存储检测到的图像信号来光电检测存储在可刺激的荧光粉片上的物体的放射线图像的装置包括用于识别可刺激的荧光粉片上的照射场的电路和图像信号选择电路，用于接收由照射场识别电路产生的照射场信息，并且仅从读出的图像信号中仅选择照射场内的图像信号。或者，该装置包括用于创建读出的图像信号的直方图的部分，用于确定在最大信号值附近出现的峰值区域之外的读出图像信号的范围的直方图分析部分，直方图中的最小信号值，以及用于接收直方图分析部分的输出并仅从读出的图像信号中选择该范围内的图像信号的图像信号选择电路。

8. 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。

9. 发明授权

US4777373A 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：US4777373A
公开(公告)日：1988-10-11
申请号：US82930
申请日：1987-08-10
申请人： Kazuo Shimura , Masamitsu Ishida
发明人： Kazuo Shimura , Masamitsu Ishida
IPC分类号： G03B42/02 , A61B6/00 , G01N23/04 , G01T1/29 , G01T1/105
CPC分类号： G01T1/2012 , Y10T307/944
摘要： A built-in type radiation image and read-out apparatus comprises a circulating and conveying means for repeatedly conveying stimulable phosphor sheets through an image recording section, an image read-out section and an erasing section. The image recording section has a transfer means for adjusting the distance between an object support member and a stimulable phosphor sheet retainer, whereby recording of enlarged radiation image is possible.
摘要翻译：内置型放射线图像和读出装置包括用于通过图像记录部分，图像读出部分和擦除部分反复地传送可刺激的磷光体片的循环和传送装置。图像记录部分具有用于调节对象支撑构件和可刺激的荧光体片保持器之间的距离的转印装置，由此可以记录放大的图像。

10. 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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式