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公开(公告)号：US5237358A
公开(公告)日：1993-08-17
申请号：US779246
申请日：1991-10-18
CPC分类号： G03B42/02 , G03D13/003
摘要： A radiation image read-out apparatus comprises an automatic developing machine for carrying out a developing process on silver halide film, on which a radiation image has been recorded as a latent image, while the silver halide film is being passed through the automatic developing machine. A film digitizer is connected to the automatic developing machine such that it may directly receive the silver halide film having been fed out of the automatic developing machine. The film digitizer photoelectrically reads out the radiation image, which has been converted into a visible image during the developing process, from the silver halide film and thereby generates an image signal representing the radiation image. The radiation image read-out apparatus is free of the problems in that considerable time and labor are required to set the film manually in the film digitizer, and the film becomes stained with finger marks, dust, or the like.
摘要翻译： 放射线图像读取装置包括一个自动显影机，用于在卤化银膜通过自动显影机的同时，对其上已经记录有放射线图像作为潜像的卤化银膜进行显影处理。 胶片数字化仪连接到自动显影机，使得它可以直接接收已经从自动显影机送出的卤化银膜。 胶片数字化仪从卤化银膜光电读出已经在显影过程中转换成可见图像的辐射图像，从而产生表示辐射图像的图像信号。 放射线图像读取装置没有这样的问题，即需要相当长的时间和劳动力将胶片手动地设置在胶片数字转换器中，并且胶片被指纹，灰尘等污染。
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公开(公告)号：US5229618A
公开(公告)日：1993-07-20
申请号：US778659
申请日：1991-10-18
申请人： Nobuyoshi Nakajima
发明人： Nobuyoshi Nakajima
CPC分类号： H04N1/4072 , G01N21/5911 , G01T1/2014 , G01N2021/5949 , G01N2021/5957
摘要： A radiation image read-out apparatus comprises a read-out section for photoelectrically reading out a radiation image from silver halide film, on which the radiation image has been recorded, and thereby generating an image signal representing the radiation image. A signal conversion device converts the image signal such that distortion in the image signal, which distortion is caused to occur by nonlinear characteristics of the silver halide film, may be eliminated. A corrected image signal is thereby obtained, which can be processed commonly with an image signal obtained by reading out a radiation image from a stimulable phosphor sheet, on which the radiation image has been stored.
摘要翻译： 放射线图像读出装置包括一个读出部分，用于从其上记录了辐射图像的卤化银膜光电读出辐射图像，从而产生表示辐射图像的图像信号。 信号转换装置转换图像信号，从而可消除由卤化银膜的非线性特性引起的失真引起的图像信号的失真。 由此获得校正的图像信号，其可以通过从其上已经存储放射线图像的可刺激的磷光体片读出辐射图像而获得的图像信号共同地进行处理。
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33.发明授权Energy subtraction processing method using weighted average of plural stacked sheets for creating high energy image 失效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
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。
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公开(公告)号：US4950894A
公开(公告)日：1990-08-21
申请号：US327459
申请日：1989-03-22
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。
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公开(公告)号：US4916316A
公开(公告)日：1990-04-10
申请号：US39845
申请日：1987-04-20
CPC分类号： G01T1/2014
摘要： A radiation image recording and reproducing method comprises the steps of scanning a stimulable phosphor sheet carrying a radiation image stored thereon with stimulating rays, and detecting light emitted by the stimulable phosphor sheet upon stimulation by stimulating rays to obtain an image signal. The image signal including a stimulated light emission signal and an after-glow signal representing a stimulated light emission after-glow emanated by the portion of the stimulable phosphor sheet no longer being exposed to stimulating rays is detected in such a condition that the level of the after-glow signal at a position on the stimulable phosphor sheet 20 mm beyond the position where exposure to stimulating rays is completed is not higher than 10.sup.-2.5 times the level of the stimulated light emission signal, and the level of the after-glow signal at a position 430 mm beyond the position where exposure to stimulating rays is completed is not higher than 10.sup.-3.3 times the level of the stimulated light emission signal.
摘要翻译： 放射线图像记录和再现方法包括以下步骤：通过刺激光线扫描携带其上存储的放射线图像的可刺激的荧光片，并且通过刺激光线来刺激光线来检测由可刺激的荧光体片发射的光以获得图像信号。 包括被激发的发光信号和表示由可刺激的荧光粉片的不再暴露于刺激光线的部分发出的被激发的发光余辉的后辉度信号的图像信号被检测到这样的条件： 可触发的荧光粉片上的曝光激光射出完成的位置以上的位置处的后辉光信号不高于受激发光信号的电平的10-2.5倍，后辉光信号的电平 在激光曝光完成的位置430mm以上的位置不高于受激发光信号的10-3.3倍。
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36.发明授权Method of automatically determining imaged body posture in medical image display 失效在医学图像显示中自动确定成像体姿势的方法
公开(公告)号：US4903310A
公开(公告)日：1990-02-20
申请号：US183954
申请日：1988-04-20
IPC分类号： G06K9/20
CPC分类号： G06K9/20 , Y10S250/909
摘要： An accumulative histogram of an image signal bearing a transmitted image of a human body is generated. The rate of change of the accumulative histogram is determined in a predetermined region of the image, and the imaged posture of the image is determined from the rate of change. Alternatively, to determine the imaged posture, the separation of a histogram is determined, or the pattern of the histogram is compared with a plurality of reference histogram patterns. The derivative of second order of a function approximated by the histogram pattern may be checked for its sign, or the histogram may be checked to determine whether it is of a single-peak form or a double-hump form. The dispersion of the histogram may also be determined.
摘要翻译： 产生承载人体的透射图像的图像信号的累积直方图。 在图像的预定区域中确定累积直方图的变化率，并且根据变化率确定图像的成像姿势。 或者，为了确定成像姿势，确定直方图的分离，或将直方图的图案与多个参考直方图模式进行比较。 可以检查由直方图图案近似的函数的二阶导数的符号，或者可以检查直方图以确定其是单峰形式还是双峰形式。 也可以确定直方图的色散。
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公开(公告)号：US4870277A
公开(公告)日：1989-09-26
申请号：US316833
申请日：1989-02-28
CPC分类号： H04N1/40056 , G01T1/2014
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 to obtain an image signal representing the radiation image. Stimulating rays are made to pass through a beam diameter adjusting device, and the level of the stored radiation energy is detected. The beam diameter of stimulating rays is expanded by the beam diameter adjusting device as the level of the stored radiation energy decreases. In a radiation image read-out and reproducing method, a photosensitive material is exposed to a recording beam modulated with the read-out image signal for recording the radiation image thereon. The recording beam is made to pass through a beam diameter adjusting device, and the beam diameter of the recording beam is expanded by the beam diameter adjusting device as the level of the stored radiation energy decreases.
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38.发明授权Radiation image read-out apparatus including selective stimulating ray reflection preventing means 失效包括选择性刺激射线反射防止装置的放射图像读出装置
公开(公告)号：US4680473A
公开(公告)日：1987-07-14
申请号：US710255
申请日：1985-03-11
CPC分类号： G01T1/2014
摘要： A radiation image read-out apparatus comprises an optical system for scanning a stimulable phosphor sheet carrying a radiation image stored therein by stimulating rays, a light guide member for guiding light emitted by the stimulable phosphor sheet upon exposure to stimulating rays, a light guiding mirror for reflecting the emitted light to the light guide member, and a photoelectric converter for detecting the light guided by the light guide member. The light guiding mirror is provided with a reflection plane which reflects the light emitted by the stimulable phosphor sheet and which does not reflect stimulating rays. Or, a filter for absorbing the stimulating rays reflected by the stimulable phosphor sheet and transmitting the light emitted by the stimulable phosphor sheet is positioned between the scanned portion of the stimulable phosphor sheet and the light guiding mirror.
摘要翻译： 放射线图像读出装置包括：光学系统，用于通过刺激光线扫描携带其中存储的放射线图像的可刺激的荧光体片;导光部件，用于在暴露于刺激光线时引导由可刺激的荧光体片发射的光;导光镜 用于将发射的光反射到导光构件，以及光电转换器，用于检测由导光构件引导的光。 导光镜设置有反射由可刺激的荧光体片发射的光并且不反射刺激光线的反射平面。 或者，用于吸收由可刺激的荧光体片反射的刺激光线并透射由可刺激的荧光体片发射的光的滤光器位于可刺激的荧光体片的扫描部分和导光镜之间。
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公开(公告)号：US4581535A
公开(公告)日：1986-04-08
申请号：US433719
申请日：1982-10-12
申请人： Takao Komaki , Hirosi Tanaka , Nobuyoshi Nakajima
发明人： Takao Komaki , Hirosi Tanaka , Nobuyoshi Nakajima
CPC分类号： A61B6/025 , G01T1/2012
摘要： A stack of many stimulable phosphor sheets and an X-ray tube are positioned with an object intervening therebetween, and moved with respect to each other around a tomographic plane in the object so as to satisfy the linear rule and the geometric rule in the course of exposure of the object to X-rays, thereby storing images of many tomographic planes in the stimulable phosphor sheets in a single recording step. The respective stimulable phosphor sheets are then exposed to a stimulating ray to cause them to emit light, the emitted light is photoelectrically read out, and the obtained electric signals are reproduced as visible tomographic images usable in diagnosis with high efficiency and accuracy. The electric signals may be superposed one upon another and reproduced as an X-ray image of any slice thickness, particularly a slice thickness of 5 mm or more, which is free from interfering shadows.
摘要翻译： 许多可激发的荧光体片和X射线管的堆叠被定位成具有介于其间的物体，并且围绕物体中的断层摄影平面相对于彼此移动，以满足线性规则和过程中的几何规则 将物体暴露于X射线，从而在单个记录步骤中将许多层析成像平面的图像存储在可刺激的磷光体片中。 然后将各个可激发的荧光体片暴露于刺激的光线，使其发光，发出的光被光电读出，并且所获得的电信号作为可用于诊断中的可见断层图像以高效率和准确度再现。 电信号可以彼此叠加并再现为任何切片厚度，特别是5mm以上的切片厚度的X射线图像，其不受干扰阴影。
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公开(公告)号：US07773832B2
公开(公告)日：2010-08-10
申请号：US11362731
申请日：2006-02-28
申请人： Nobuyoshi Nakajima
发明人： Nobuyoshi Nakajima
CPC分类号： G09G5/363 , G06F17/30265
摘要： There is provided an image outputting apparatus for generating an album by selecting adequate images for an appreciator out of a plurality of images. The image outputting apparatus has an final image storing section for storing a plurality of final images, an image-capturing-time storing section for storing image capturing time when each of the plurality of final images stored in the final image storing section was captured, an output time getting section for getting output time when the plurality of final images stored in the final image storing section is required to be outputted, a time range setting section for setting a wider time range when a difference between the output time obtained by the output time getting section and the image capturing time of the final image stored in the final image storing section is longer, an image selecting section for selecting a plurality of final images captured within a preset time range among the plurality of final images stored in the final image storing section and an image output controlling section for outputting the plurality of final images selected by the image selecting section at different positions within one and same output area.
摘要翻译： 提供一种图像输出装置，用于通过从多个图像中选择适当的图像来产生相册。 图像输出装置具有用于存储多个最终图像的最终图像存储部分，用于在捕获存储在最终图像存储部分中的多个最终图像中的每一个被捕获时存储图像捕获时间的图像捕获时间存储部分， 当需要输出存储在最终图像存储部分中的多个最终图像时获得输出时间的输出时间获得部分;时间范围设置部分，用于当通过输出时间获得的输出时间之间的差设定较宽的时间范围; 存储在最终图像存储部分中的最终图像的获取部分和图像捕获时间更长;图像选择部分，用于选择存储在最终图像存储部分中的多个最终图像中的预设时间范围内捕获的多个最终图像 部分和图像输出控制部分，用于输出由图像选择部分选择的多个最终图像 在同一输出区内的不同位置。
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