专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US5231575A Image read-out apparatus 失效
标题翻译：图像读出装置
公开(公告)号：US5231575A
公开(公告)日：1993-07-27
申请号：US600935
申请日：1990-10-22
申请人： Nobuyoshi Nakajima
发明人： Nobuyoshi Nakajima
IPC分类号： G01T1/29 , G06K11/00 , H04N1/04 , H04N1/113 , H04N1/12 , H04N1/40
CPC分类号： H04N1/0405 , G01T1/2014 , G06K11/00 , H04N1/0402 , H04N1/0408 , H04N1/0443 , H04N1/40 , H04N1/40068 , H04N1/1135 , H04N1/12 , H04N2201/0412 , H04N2201/04756
摘要： An image read-out apparatus comprises a readout section for scanning a recording medium, on which an image has been recorded, in a main scanning direction and a sub-scanning direction, and thereby generating an image signal which has been sampled with a predetermined sampling density from the image, and an input section from which information about the type of the image and a high-density sampling instructing signal can be entered. The read-out section is provided with a sampling density adjusting device, which adjusts the predetermined sampling density so that it becomes equal to a sampling density corresponding to the type of the image in cases where only the information about the type of the image has been entered from the input section, and which adjusts the predetermined sampling density so that it becomes equal to a high sampling density, which is higher than the sampling density corresponding to the type of the image, in cases where the high-density sampling instructing signal has been entered from the input section.
摘要翻译：图像读出装置包括读取部，用于在主扫描方向和副扫描方向上扫描已经记录有图像的记录介质，从而生成以预定取样采样的图像信号来自图像的浓度，以及可以输入关于图像的类型和高密度采样指示信号的信息的输入部。读出部分设置有采样密度调节装置，其调整预定的采样密度，使得其仅等于图像的类型的信息等于与图像的类型相对应的采样密度在输入部分输入，并且在高密度采样指示信号具有的情况下调整预定采样密度使其变得等于高于对应于图像类型的采样密度的高采样密度从输入部分输入。

92. 发明授权

US5123054A Abnormal pattern detecting apparatus 失效
标题翻译：异常模式检测装置
公开(公告)号：US5123054A
公开(公告)日：1992-06-16
申请号：US599928
申请日：1990-10-19
申请人： Shoji Hara , Nobuyoshi Nakajima
发明人： Shoji Hara , Nobuyoshi Nakajima
IPC分类号： G06T7/00
CPC分类号： G06T7/0012 , G06T2207/10116 , G06T2207/10144 , G06T2207/30061
摘要： An abnormal pattern detecting apparatus comprises an image operating device which generates a soft tissue image signal representing a soft tissue image, a bone image signal representing a bone image, and an original image signal representing an original image from several image signals representing radiation images of an object, which radiation images have been recorded by exposing the object to at least two kinds of radiation having different energy distributions. A prospective abnormal pattern finding device finds prospective abnormal patterns, which appear in the soft tissue, bone, and original images, by processing the corresponding image signals with an abnormal pattern finding filter. A bone pattern finding device finds information about the positions of bone patterns appearing in the radiation image. From information about the positions of the prospective abnormal patterns and the information about the positions of the bone patterns, a judgment device judges whether the prospective abnormal patterns thus found are or are not true abnormal patterns.
摘要翻译：异常图案检测装置包括图像操作装置，其生成表示软组织图像的软组织图像信号，表示骨骼图像的骨骼图像信号和表示来自表示原始图像的原始图像的原始图像信号，所述图像信号表示来自物体，通过将物体暴露于具有不同能量分布的至少两种辐射而已经记录了这些辐射图像。通过用异常模式寻找过滤器处理相应的图像信号，预期的异常模式发现装置发现出现在软组织，骨骼和原始图像中的预期异常模式。骨骼图案查找装置找到关于辐射图像中出现的骨骼图案的位置的信息。从关于预期异常模式的位置的信息和关于骨骼图案的位置的信息，判断装置判断所发现的预期异常模式是否是真正的异常模式。

93. 发明授权

US5122664A Method and apparatus for quantitatively analyzing bone calcium 失效
标题翻译：用于定量分析骨钙的方法和装置
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。

94. 发明授权

US5048110A Method and apparatus for automatically correcting subtraction image density 失效
标题翻译：用于自动校正减影图像浓度的方法和装置
公开(公告)号：US5048110A
公开(公告)日：1991-09-10
申请号：US318465
申请日：1989-02-27
申请人： Nobuyoshi Nakajima
发明人： Nobuyoshi Nakajima
IPC分类号： G06T5/00 , G06T5/40
CPC分类号： G06T7/0083 , G06T5/009 , G06T5/40 , G06T2207/10116 , G06T2207/30101
摘要： In a temporal subtraction processing conducted by use of stimulable phosphor sheets, the difference between maximum transmitting radiation amount of digital image signals detected from the stimulable phosphor sheets carrying radiation images stored therein is calculated. The difference is added to a difference signal obtained by the subtraction processing prior to a gradation processing, or a gradation conversion table is shifted by the difference towards the high density side along the input signal coordinate axis. Or, read-out conditions in final read-out are adjusted so that the difference is eliminated. Or, a maximum frequency point signal is calculated from a histogram of the difference signal, the difference between a signal representing the standard background density of a subtraction image and the maximum frequency point signal is calculated, and correction is made so that the background density in the subtraction image becomes always the same.
摘要翻译：在通过使用可刺激的磷光体片进行的时间减法处理中，计算从携带其中存储的辐射图像的可刺激的磷光体片检测到的数字图像信号的最大透射辐射量之间的差异。该差值被加到通过灰度处理之前的减法处理获得的差分信号，或灰度转换表沿输入信号坐标轴向高密度侧偏移。或者，调整最终读取中的读出条件，以消除差异。或者，根据差分信号的直方图计算最大频点信号，计算表示减法图像的标准背景浓度的信号与最大频率点信号之间的差异，进行校正，使得背景浓度减法图像总是相同。

95. 发明授权

US5006708A Method for generating radiation image signals 失效
标题翻译：用于产生辐射图像信号的方法
公开(公告)号：US5006708A
公开(公告)日：1991-04-09
申请号：US407823
申请日：1989-09-15
申请人： Wataru Itoh , Nobuyoshi Nakajima , Takefumi Nagata
发明人： Wataru Itoh , Nobuyoshi Nakajima , Takefumi Nagata
IPC分类号： G21K4/00 , A61B6/00 , G03B42/02 , G06T5/20 , H04N1/04 , H04N1/409 , H04N5/32 , H04N7/18
CPC分类号： H04N1/409
摘要： A radiation image which has been recorded on a recording medium is read out at predetermined sampling intervals in order to obtain an image signal. A method for generating a radiation image signal comprises the steps of, in the course of the radiation image being read out, first applying sampling intervals corresponding to a second spatial frequency fsw higher than a first spatial frequency fss, which is the maximum of a desired spatial frequency range, along at least one direction on the recording medium in order to obtain an original image signal. The original image signal is then subjected to filtering processing in order to transmit spatial frequency components below the first spatial frequency fss, and to reduce or eliminate spatial frequency components above the first spatial frequency fss. Lastly, the original image signal which has been obtained from the filtering processing is sampled at sampling intervals corresponding to the first spatial frequency fss in order to obtain an image signal.

96. 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。

97. 发明授权

US4951201A Method of automatically determining imaged body posture in medical image display 失效
标题翻译：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：US4951201A
公开(公告)日：1990-08-21
申请号：US183809
申请日：1988-04-20
申请人： Hideya Takeo , Nobuyuki Tanaka , Nobuyoshi Nakajima
发明人： Hideya Takeo , Nobuyuki Tanaka , Nobuyoshi Nakajima
IPC分类号： G06T7/00
CPC分类号： G06T7/0048 , G06T7/0044 , G06T2207/30004 , Y10S250/909
摘要： A distribution of an image signal read from a stimulable phosphor sheet and bearing a transmitted radiation image of a human body is determined along a horizontal direction across the image. Signal values of the distribution along the direction are accumulated, and the rate of change of the accumulated values is determined to find the imaged posture of the image. Alternatively, the separation or the average value of the distribution is determined, or the pattern of the distribution is compared with a plurality of reference signal distribution patterns. The derivative of second order of a function approximated by the distribution pattern may be checked for its sign, or the distribution pattern may be checked to determine whether it is of a one-valley form or a two-valley form.
摘要翻译：沿着图像的水平方向确定从可刺激的磷光体片读取并承载人体的透射辐射图像的图像信号的分布。累积沿着方向的分布的信号值，并且确定累积值的变化率以找到图像的成像姿势。或者，确定分布的分离或平均值，或将分布的图案与多个参考信号分布模式进行比较。可以检查由分布模式近似的函数的二阶导数的符号，或者可以检查分布模式以确定它是单谷形还是双谷形。

98. 发明授权

US4896038A 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：US4896038A
公开(公告)日：1990-01-23
申请号：US148832
申请日：1988-01-27
申请人： Nobuyoshi Nakajima
发明人： Nobuyoshi Nakajima
IPC分类号： G03B42/02 , A61B6/00 , G06K9/20 , G06T1/00 , H04N1/04
CPC分类号： G06K9/2054
摘要： In a radiation image read-out method and apparatus, final read-out is carried out for obtaining image signals for use in reproduction of a visible image from a recording medium carrying a radiation image of an object recorded thereon, image processing conditions for use in processing of the final read-out signals obtained by the final read-out are adjusted, and image processing of the final read-out image signals is carried out by use of the image processing conditions. In the case where subdivision image recording is carried out by exposing each of a plurality of subdivisions on the recording medium to radiation in the course of the radiation image recording, image signals at a subdivision, which has not been exposed to the radiation, is removed from the final read-out image signals on the basis of information on subdivision image recording, and the image processing conditions are adjusted on the basis of the remainder of the final read-out image signals.
摘要翻译：在放射线图像读出方法和装置中，执行最终读出以获得用于再现由记录在其上记录的物体的放射线图像的记录介质再现可视图像的图像信号，用于调整通过最终读取获得的最终读出信号的处理，并且通过使用图像处理条件来执行最终读出的图像信号的图像处理。在通过在放射线图像记录的过程中将记录介质上的多个细分中的每一个分解成辐射来进行细分图像记录的情况下，去除尚未暴露于辐射的细分处的图像信号被去除基于关于细分图像记录的信息的最终读出图像信号，并且基于最终读出的图像信号的剩余部分来调整图像处理条件。

99. 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。

100. 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。

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