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    • 3. 发明授权
    • Method of compressing a dynamic range for a radiation image
    • 压缩辐射图像的动态范围的方法
    • US5471987A
    • 1995-12-05
    • US215261
    • 1994-03-21
    • Masayuki NakazawaHisanori Tsuchino
    • Masayuki NakazawaHisanori Tsuchino
    • G06T5/20G06F159/00
    • G06T5/004G06T5/20Y10S128/925
    • A dynamic range compression method for a radiation image for obtaining processed image signal carrying an image having a dynamic range that is narrower than that of the original image, by processing original image signal representing an original image based on radiation image information transmitted through an object. The method is for obtaining unsharp mask signal by averaging the original image signal in a predetermined mask area containing each pixel point corresponding to each pixel point and for correcting original image signal by providing a correction value that is a function of the unsharp mask signal to obtain a processed image signal. Weighting is applied corresponding to an absolute value of a signal different between a central pixel and a peripheral pixel both within a mask area in the averaging process for obtaining the unsharp mask signal.
    • 一种放射图像的动态范围压缩方法,用于通过基于通过对象发送的放射线图像信息处理表示原始图像的原始图像信号来获得承载具有比原始图像的动态范围窄的动态范围的图像的处理图像信号。 该方法是通过对包含与每个像素点相对应的每个像素点的预定掩模区域中的原始图像信号进行平均来获得钝化掩模信号,并且通过提供作为钝化掩模信号的函数的校正值来校正原始图像信号,以获得 经处理的图像信号。 对于平均化处理中的掩模区域内的中心像素和周边像素之间的信号的绝对值相对应地进行加权,以获得非锐化掩模信号。
    • 5. 发明授权
    • Radiographic image data recording and reading apparatus
    • 射线照相图像数据记录和读取装置
    • US5276313A
    • 1994-01-04
    • US902968
    • 1992-06-23
    • Masayuki NakazawaMotoharu TsuchiyaAkiko YanagitaHisanori Tsuchino
    • Masayuki NakazawaMotoharu TsuchiyaAkiko YanagitaHisanori Tsuchino
    • A61B6/00G01T1/29G03B42/02G01N23/04
    • G01T1/2014G01T1/2012
    • A radiographical image reader for photoelectrically reading a radiographical image of an object. The image reader comprises a radioactive ray irradiator; a radiographical image converting panel which is a radioactive ray absorbent for absorbing the radioactive ray transmitted through through the object so that a radiographical image information is obtained; a scanner to scan the converting panel with exciting light so that the converting panel is subjected to stimulated emission; a reader to read the stimulated emission of the converting panel so that the radiographical image is obtained; a first memory to store at least one of a radioactive ray irradiating condition, object information, and image identification code; a second memory to store a radiographical image information; and a circuit to control the functions of the reader, the first memory, and the second memory in accordance with said irradiation of the radioactive ray by the irradiator.
    • 一种用于光电读取对象的放射照相图像的放射图像读取器。 图像读取器包括放射线照射器; 放射线图像转换面板,其是用于吸收透过物体的放射线的放射线吸收体,从而得到放射线图像信息; 扫描仪,用激发光扫描转换面板,使转换面板受到受激发射; 读取器,读取转换面板的受激发射,从而获得放射图像; 存储放射线照射条件,物体信息和图像识别码中的至少一个的第一存储器; 用于存储放射照相图像信息的第二存储器; 以及根据所述辐射器对所述放射线的照射来控制所述读取器,所述第一存储器和所述第二存储器的功能的电路。
    • 6. 发明授权
    • Radiation image storage panel having low refractive index layer and
protective layer
    • 具有低折射率层和保护层的辐射图像存储面板
    • US5023461A
    • 1991-06-11
    • US366785
    • 1989-06-15
    • Masayuki NakazawaMasaaki NittaHisanori TsuchinoAkiko Kano
    • Masayuki NakazawaMasaaki NittaHisanori TsuchinoAkiko Kano
    • G21K4/00
    • G21K4/00
    • There are disclosed a radiation image storage panel having a stimulable layer and a protective layer on a support, which comprises a layer having a lower refractive index than the protective layer is provided between the stimulable phosphor layer and the protective layer; and a process for preparing a radiation image storage panel composed of a support, a stimulable phosphor layer and a protective layer, and a protective layer supporting member is so provided between layers of the support and the protective layer as to surround and seal edges of the stimulable phosphor layer, which comprises the steps of providing at least one notch to the protective layer supporting member which functions as a vent hole, heating and drying the radiation image storage panel, and then fusing and sealing the notch or notches.
    • 公开了一种在支撑体上具有可刺激层和保护层的辐射图像存储板,其包括在可刺激荧光体层和保护层之间具有比保护层更低折射率的层; 并且在支撑体和保护层的层之间设置用于制备由支撑体,可刺激的荧光体层和保护层组成的放射线图像存储面板和保护层支撑构件的方法,以围绕和密封 所述荧光体层包括以下步骤:向用作通气孔的保护层支撑构件提供至少一个凹口,加热和干燥放射线图像存储面板,然后将凹口或凹口熔合和密封。
    • 8. 发明授权
    • Radiation image pickup method and apparatus
    • 辐射摄像方法及装置
    • US5307396A
    • 1994-04-26
    • US982781
    • 1992-11-30
    • Hisanori Tsuchino
    • Hisanori Tsuchino
    • A61B6/00G21K1/02G21K5/04G21K5/10
    • A61B6/00G21K1/02G21K5/04
    • In picking up a radiation image, and image is first picked up without adjusting the radiation dose of a radiation beam that scans an irradiation target to thereby acquire information of the dose of radiation transmitted through the irradiation target at the same time the image is picked up. Based on the information of the transmitted dose of radiation, the radiation dose to be controlled is determined, and image pickup is executed again to be superimposed on the initial pickup while controlling the radiation dose according to the determined control dose, whereby the radiation image data is obtained. Further, the image of the case where the radiation dose is not controlled is restored in signal processing of the obtained radiation image data and the data of the radiation control quantity.
    • 在拾取放射线图像时,首先拾取图像而不调整扫描照射目标的辐射束的辐射剂量,从而获取在拍摄图像的同时传输的辐射剂量的信息 。 基于所发射的辐射剂量的信息,确定要控制的辐射剂量,并且根据确定的控制剂量控制辐射剂量,再次执行图像拾取以叠加在初始拾取上,由此辐射图像数据 获得。 此外,在获得的放射线图像数据的信号处理和放射线控制量的数据的信号处理中恢复未控制辐射剂量的情况的图像。
    • 9. 发明授权
    • Radiographical image reading apparatus
    • 放射影像读取装置
    • US5260573A
    • 1993-11-09
    • US012625
    • 1993-03-04
    • Hisanori Tsuchino
    • Hisanori Tsuchino
    • G01T1/29G01N23/04
    • G01T1/2014
    • A radiographical image reader for photoelectrically reading a radiographical image of an object. The image reader comprises a radioactive ray irradiator; a radiographical image converting panel which is a radioactive ray absorbent for absorbing the radioactive ray passed through the object so that a radiographical image information is obtained; a scanner to scan the converting panel with exciting light so that the converting panel is subjected to stimulated emission; a reader to read the stimulated emission of the converting panel so that the radiographical image is obtained; a memory to store at least one of radioactive ray uneven generation information of the irradiator and sensitivity unevenness information of the converting panel; and a processor to compensate the radiographical image information according to at least one of the radioactive ray uneven generation information and the sensitivity unevenness information.
    • 一种用于光电读取对象的放射照相图像的放射图像读取器。 图像读取器包括放射线照射器; 放射线图像转换面板,其是用于吸收穿过物体的放射线的放射线吸收剂,从而获得放射图像信息; 扫描仪,用激发光扫描转换面板,使转换面板受到受激发射; 读取器,读取转换面板的受激发射,从而获得放射图像; 用于存储照射器的放射线不均匀产生信息和转换面板的灵敏度不均匀信息中的至少一个的存储器; 以及处理器,用于根据放射线不均匀发生信息和灵敏度不均匀信息中的至少一个来补偿放射线图像信息。