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公开(公告)号：US5663998A
公开(公告)日：1997-09-02
申请号：US654037
申请日：1996-05-28
申请人： Masakazu Suzuki , Yoshio Uejima , Takeshi Hayashi
发明人： Masakazu Suzuki , Yoshio Uejima , Takeshi Hayashi
摘要： In step s1, X-ray imaging is performed, and an image signal linear to the intensity of X-rays is stored in an image memory 7. Next, in step s2, the maximum from among image data is detected, and the maximum is set as reference value N0. In step s3, image data N is logarithmically converted in accordance with the following equation (a), and the converted data is stored in an image memory 7.d=.beta..multidot.log(N0/N) . . . (a)where d is image data after correction and has a logarithmic relationship to the X-ray intensity, and .beta. is a constant. Then, the image data logarithmically converted for density correction is displayed by a display unit 6 in step 4.
摘要翻译： 在步骤s1中，执行X射线成像，将与X射线强度成线性的图像信号存储在图像存储器7中。接下来，在步骤s2中，检测图像数据中的最大值，最大值为 设为参考值N0。 在步骤s3中，图像数据N根据下面的等式（a）进行对数转换，转换的数据被存储在图像存储器7中。d = beta xlog（N0 / N）。 。 。 （a）其中d是校正后的图像数据，并且与X射线强度具有对数关系，β是常数。 然后，在步骤4中，由显示单元6显示用于浓度校正的对数转换的图像数据。
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2.发明申请Automatic exposure control method of image and automatic exposure control system using the method 有权自动曝光控制方法的图像和自动曝光控制系统采用该方法公开(公告)号：US20050242269A1
公开(公告)日：2005-11-03
申请号：US11119510
申请日：2005-04-28
IPC分类号： A61B6/14 , A61B6/00 , A61B6/03 , H01L27/00 , H04N5/32 , H04N7/18 , H05G1/30 , H05G1/42 , H05G1/44
摘要： An automatic exposure control method for an image produced on a solid-state image sensing device in which intensity of radiation light irradiated to an object to be examined from a radiation source is feedback controlled. The solid-state image sensing device comprises a picture element producing part where electric charges generated by way of photo-electric conversion when receiving exposure, and a dark current measuring part where a dark current is generated and stored without receiving exposure. The image is produced while performing radiography in a manner that the intensity of radiation light is feedback controlled so as to keep, within a predetermined density range, the amount value which is defined by removing the charge signals stored on a specified pixel element or a specified pixel element column in the dark current measuring part of the image sensing device from the charge signals stored on a specified pixel element or a specified pixel element column in the picture element producing part of the image sensing device.
摘要翻译： 一种用于在固体摄像装置上产生的图像的自动曝光控制方法，其中反射控制从辐射源照射到被检体的辐射光的强度。 固态图像感测装置包括在接收曝光时通过光电转换产生的电荷的像素产生部分，以及在不接收曝光的情况下产生和存储暗电流的暗电流测量部分。 在以放射线的强度被反馈控制的方式进行放射线摄影时产生图像，以便在预定浓度范围内保持通过去除存储在指定像素元件上的电荷信号或指定的像素元素所定义的量值 从存储在图像元素生成部分中的指定像素元素或指定像素元素列上的电荷信号的图像感测装置的暗电流测量部分中的像素元素列。
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3.发明授权公开(公告)号：US06219401B1
公开(公告)日：2001-04-17
申请号：US09547377
申请日：2000-04-11
申请人： Akifumi Tachibana , Takeshi Hayashi , Masakazu Suzuki , Junichi Furukawa , Yutaka Ito , Masaya Tatsumi , Hideki Yoshikawa
发明人： Akifumi Tachibana , Takeshi Hayashi , Masakazu Suzuki , Junichi Furukawa , Yutaka Ito , Masaya Tatsumi , Hideki Yoshikawa
IPC分类号： A61B614
CPC分类号： A61B6/4233 , A61B6/14 , A61B6/548
摘要： The panoramic radiographic apparatus of the present invention has a cassette holder capable of accommodating both a conventional film cassette and a digital sensor cassette loaded with an electric X-ray image detector, one at a time, in a rotary arm, wherein when a film cassette is mounted, the cassette holder is mechanically moved in accordance with the rotation of the rotary arm so as to carry out panoramic radiographing, and when a digital sensor cassette is mounted, without moving the cassette holder, the electric X-ray image detector is driven by supplying control signals corresponding to the rotation of the rotary arm to the digital sensor cassette to obtain image signals required for generating a panoramic X-ray image. Therefore, both the film cassette and the digital sensor cassette can easily be mounted, one at a time, whereby required panoramic X-ray images can be obtained by fully using the features of each type of cassette.
摘要翻译： 本发明的全景放射线照相设备具有盒式磁带保持器，其能够在旋转臂中一次一个地容纳传统的胶片盒和装有电X射线图像检测器的数字传感器盒，其中当胶片盒 安装盒式磁带架，根据旋转臂的旋转机械地移动，以进行全景放射照相，并且当安装数字传感器盒而不移动盒式磁带架时，驱动电X射线图像检测器 通过将对应于旋转臂的旋转的控制信号提供给数字传感器盒，以获得产生全景X射线图像所需的图像信号。 因此，可以容易地一次一个地安装胶卷盒和数字传感器盒，从而通过充分利用每种类型的盒的特征可以获得所需的全景X射线图像。
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4.发明授权Two dimensional image production method and system using solid-state image sensing device 有权二维图像制作方法及系统采用固态摄像装置公开(公告)号：US07247861B2
公开(公告)日：2007-07-24
申请号：US11119516
申请日：2005-04-28
IPC分类号： G01T1/20
CPC分类号： H04N5/32 , A61B6/548 , H01L27/14658 , H04N5/361 , H04N5/37206
摘要： A two dimensional image production method by using a solid-state image sensing device, wherein the solid-state sensing device comprises a picture element producing part where electric charges generated by way of photo-electric conversion when receiving exposure is stored as charge signals, and a dark current measuring part where a dark current is stored without receiving exposure. The method comprising the steps of: preparing and storing in advance the output ratio data for a fixed exposure time between dark current component of each pixel element or each pixel element column in the picture element producing part and that of a specified pixel element or a specified pixel element column in the dark current measuring part, and producing sequentially pixel datum removed a dark current component while performing radiography, by executing a predetermined arithmetic operation for the signals of the electric charges outputted from the picture element producing part depending on the output ratio data.
摘要翻译： 一种使用固态摄像装置的二维图像制作方法，其中，所述固态感测装置包括：图像元素产生部，其中，当接收到曝光时通过光电转换产生的电荷被作为电荷信号存储;以及 暗电流测量部分，其中存储暗电流而不接收曝光。 该方法包括以下步骤：在图像元素产生部分中的每个像素元素或每个像素元素列的暗电流分量与指定的像素元素或指定像素元素列的暗电流分量之间的固定曝光时间预先准备并存储输出比数据 像素元素列，并且通过对从图像元素产生部分输出的电荷的信号根据输出比率数据执行预定的算术运算，在执行放射线照相时产生顺序的像素数据去除暗电流分量 。
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公开(公告)号：US20110049373A1
公开(公告)日：2011-03-03
申请号：US12807203
申请日：2010-08-31
IPC分类号： G01T1/20
CPC分类号： G03B42/08 , G01T1/2014
摘要： Provided is a radiological image reader that reads radiological images from an imaging plate. The reader includes: a holder that holds the imaging plate in a flat manner; a light source that emits excitation light; a scanning mechanism that causes an optical path of the excitation light emitted from the light source to rotate around a rotation axis being perpendicular to a scanning plane including a radiological image forming surface of the imaging plate held by the holder and being apart from the light source, and causes an irradiation point at which the excitation light emitted from the light source is irradiated to circularly move on the scanning plane; a photodetector that is provided on the rotation axis and detects photostimulated luminescence light emitted from the irradiation point; and a relative movement mechanism that causes the holder to move in a direction perpendicular to the rotation axis, relative to the scanning mechanism.
摘要翻译： 提供了从成像板读取放射图像的放射图像读取器。 阅读器包括：以平坦的方式保持成像板的支架; 发射激发光的光源; 扫描机构使得从光源发射的激发光的光路绕旋转轴线旋转，该旋转轴线垂直于包括由保持器保持的成像板的放射线图像形成表面并与光源分开的扫描平面 并且使得从光源发射的激发光被照射的照射点在扫描平面上循环移动; 光电检测器，其设置在所述旋转轴上并检测从所述照射点发射的光刺激的发光; 以及相对于扫描机构使保持件沿与旋转轴垂直的方向移动的相对移动机构。
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公开(公告)号：US20050047638A1
公开(公告)日：2005-03-03
申请号：US10894386
申请日：2004-07-19
申请人： Masakazu Suzuki , Takeshi Hayashi
发明人： Masakazu Suzuki , Takeshi Hayashi
IPC分类号： A61B6/14 , A61B20060101 , A61B6/00 , G06K9/00 , G06K9/36 , G06T5/10 , G06T7/00 , G06T7/40 , H04N5/232 , H04N5/32 , H04N5/325
CPC分类号： G06T5/10 , G06T5/007 , G06T2207/10116 , G06T2207/20056 , G06T2207/30008 , G06T2207/30036 , H04N5/32
摘要： In a method for processing a digital X-ray image data obtained by panoramic or cephalo-metric radiography, Fourier transforms are computed in a two-dimensional frequency space on the digital X-ray image data, and data of the Fourier transforms are multiplied by values of a mask having different frequency characteristics in two coordinate directions in the two-dimensional frequency space, the values being smaller than one around an origin in the frequency space. Then, inverse Fourier transforms are computed on the data of the Fourier transforms after the multiplication. A resultant image data in real space is provided for diagnosis.
摘要翻译： 在用于处理通过全景或头部头照射获得的数字X射线图像数据的方法中，在数字X射线图像数据上的二维频率空间中计算傅里叶变换，并且将傅里叶变换的数据乘以 在二维频率空间中在两个坐标方向上具有不同频率特性的掩模的值，该值小于频率空间中原点周围的值。 然后，对乘法后的傅里叶变换的数据计算逆傅里叶变换。 提供实际空间中得到的图像数据用于诊断。
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公开(公告)号：US06584171B2
公开(公告)日：2003-06-24
申请号：US09789087
申请日：2001-02-20
IPC分类号： H05G164
CPC分类号： H04N5/37206 , A61B6/14 , A61B6/4233 , A61B6/548 , G03B42/02 , H04N5/325 , H04N5/3725
摘要： An X-ray imaging detector for generating X-ray transmission image in a form of electric signal, for use in X-ray imaging apparatus which comprises the X-ray imaging detector, an X-ray generator and a fixing support for fixedly positioning an object to be examined between the X-ray generator and the X-ray imaging detector mounted thereon, whereby X-ray imaging is performed by moving the X-ray generator and the X-ray imaging detector both interposing the object fixedly positioned by the fixing support while keeping facing each other. The X-ray imaging detector comprises an imaging element for generating electric charged image constituting X-ray transmitted image by detecting X-ray radiated from the X-ray generator and transmitted through the object, a TDI (time delay integration) clock generator for generating TDI clock signal, and a TDI clock controller for controlling generating of TDI clock signal from the TDI clock generator based on TDI frequency control data for controlling the frequency of the TDI clock signal and for executing time delay integration control of the charged image generated by the imaging element corresponding to the TDI clock signal.
摘要翻译： 一种X射线成像检测器，用于产生X射线成像装置的X-射线成像装置，该X射线成像装置包括X射线成像检测器，X射线发生器和固定支架，用于固定定位 在X射线发生器和安装在其上的X射线成像检测器之间检查的物体，由此通过移动X射线发生器和X射线成像检测器来进行X射线成像，两者都将固定的物体插入固定 支持同时保持面对对方。 X射线成像检测器包括：成像元件，用于通过检测从X射线发生器发射并透过物体的X射线产生构成X射线透射图像的电荷图像; TDI（时间延迟积分）时钟发生器，用于产生 TDI时钟信号和TDI时钟控制器，用于基于用于控制TDI时钟信号的频率的TDI频率控制数据控制来自TDI时钟发生器的TDI时钟信号的产生，并且用于执行由时钟信号产生的充电图像的时间延迟积分控制 成像元件对应于TDI时钟信号。
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8.发明授权Panoramic radiographic apparatus and digital sensor cassette used for same apparatus 失效用于同一设备的全景放射线照相设备和数字传感器盒公开(公告)号：US06173035B2
公开(公告)日：2001-01-09
申请号：US09154674
申请日：1998-09-18
申请人： Akifumi Tachibana , Takeshi Hayashi , Masakazu Suzuki , Junichi Furukawa , Yutaka Ito , Hideki Yoshikawa
发明人： Akifumi Tachibana , Takeshi Hayashi , Masakazu Suzuki , Junichi Furukawa , Yutaka Ito , Hideki Yoshikawa
IPC分类号： A61B602
CPC分类号： A61B6/4233 , A61B6/14 , A61B6/548
摘要： The panoramic radiographic apparatus of the present invention has a cassette holder capable of accommodating both a conventional film cassette and a digital sensor cassette loaded with an electric X-ray image detector, one at a time, in a rotary arm, wherein when a film cassette is mounted, the cassette holder is mechanically moved in accordance with the rotation of the rotary arm so as to carry out panoramic radiographing, and when a digital sensor cassette is mounted, without moving the cassette holder, the electric X-ray image detector is driven by supplying control signals corresponding to the rotation of the rotary arm to the digital sensor cassette to obtain image signals required for generating a panoramic X-ray image. Therefore, both the film cassette and the digital sensor cassette can easily be mounted, one at a time, whereby required panoramic X-ray images can be obtained by fully using the features of each type of cassette.
摘要翻译： 本发明的全景放射线照相设备具有盒式磁带保持器，其能够在旋转臂中一次一个地容纳传统的胶片盒和装有电X射线图像检测器的数字传感器盒，其中当胶片盒 安装盒式磁带架，根据旋转臂的旋转机械地移动，以进行全景放射照相，并且当安装数字传感器盒而不移动盒式磁带架时，驱动电X射线图像检测器 通过将对应于旋转臂的旋转的控制信号提供给数字传感器盒，以获得产生全景X射线图像所需的图像信号。 因此，可以容易地一次一个地安装胶卷盒和数字传感器盒，从而通过充分利用每种类型的盒的特征可以获得所需的全景X射线图像。
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9.发明授权Automatic exposure control method of image and automatic exposure control system using the method 有权自动曝光控制方法的图像和自动曝光控制系统采用该方法公开(公告)号：US07262399B2
公开(公告)日：2007-08-28
申请号：US11119510
申请日：2005-04-28
摘要： An automatic exposure control method for an image produced on a solid-state image sensing device in which intensity of radiation light irradiated to an object to be examined from a radiation source is feedback controlled. The solid-state image sensing device comprises a picture element producing part where electric charges generated by way of photo-electric conversion when receiving exposure, and a dark current measuring part where a dark current is generated and stored without receiving exposure. The image is produced while performing radiography in a manner that the intensity of radiation light is feedback controlled so as to keep, within a predetermined density range, the amount value which is defined by removing the charge signals stored on a specified pixel element or a specified pixel element column in the dark current measuring part of the image sensing device from the charge signals stored on a specified pixel element or a specified pixel element column in the picture element producing part of the image sensing device.
摘要翻译： 一种用于在固体摄像装置上产生的图像的自动曝光控制方法，其中反射控制从辐射源照射到被检体的辐射光的强度。 固态图像感测装置包括在接收曝光时通过光电转换产生的电荷的像素产生部分，以及在不接收曝光的情况下产生和存储暗电流的暗电流测量部分。 在以放射线的强度被反馈控制的方式进行放射线摄影时产生图像，以便在预定浓度范围内保持通过去除存储在指定像素元件上的电荷信号或指定的像素元素所定义的量值 从存储在图像元素生成部分中的指定像素元素或指定像素元素列上的电荷信号的图像感测装置的暗电流测量部分中的像素元素列。
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10.发明申请Two dimensional image production method and system using solid-state image sensing device 有权二维图像制作方法及系统采用固态摄像装置公开(公告)号：US20050242380A1
公开(公告)日：2005-11-03
申请号：US11119516
申请日：2005-04-28
IPC分类号： A61B6/14 , A61B6/00 , A61B6/03 , G21K4/00 , H01L27/14 , H01L27/146 , H01L31/062 , H01L31/113 , H04N5/32 , H04N5/335 , H04N5/361 , H04N5/369 , H05G1/26
CPC分类号： H04N5/32 , A61B6/548 , H01L27/14658 , H04N5/361 , H04N5/37206
摘要： A two dimensional image production method by using a solid-state image sensing device, wherein the solid-state sensing device comprises a picture element producing part where electric charges generated by way of photo-electric conversion when receiving exposure is stored as charge signals, and a dark current measuring part where a dark current is stored without receiving exposure. The method comprising the steps of: preparing and storing in advance the output ratio data for a fixed exposure time between dark current component of each pixel element or each pixel element column in the picture element producing part and that of a specified pixel element or a specified pixel element column in the dark current measuring part, and producing sequentially pixel datum removed a dark current component while performing radiography, by executing a predetermined arithmetic operation for the signals of the electric charges outputted from the picture element producing part depending on the output ratio data.
摘要翻译： 一种使用固态摄像装置的二维图像制作方法，其中，所述固态感测装置包括：图像元素产生部，其中，当接收到曝光时通过光电转换产生的电荷被作为电荷信号存储;以及 暗电流测量部分，其中存储暗电流而不接收曝光。 该方法包括以下步骤：在图像元素产生部分中的每个像素元素或每个像素元素列的暗电流分量与指定的像素元素或指定像素元素列的暗电流分量之间的固定曝光时间预先准备并存储输出比数据 像素元素列，并且通过对从图像元素产生部输出的电荷的信号根据输出比数据执行预定的算术运算，在执行放射线照相时产生顺序的像素数据去除暗电流分量 。
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