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公开(公告)号：EP2223653B1
公开(公告)日：2013-02-20
申请号：EP10164299.9
申请日：2006-11-10
申请人： Oy Ajat Ltd.
CPC分类号： A61B6/14 , A61B6/466 , A61B6/5241 , A61B6/547 , G01T1/247 , G03B42/042 , G06T7/55 , G06T7/579 , G06T7/97 , G06T2207/10116 , G06T2207/30036 , H04N5/23238 , H04N5/32
摘要： A multi-layer dental panoramic and transversal x-ray imaging system includes an x-ray source; a digital imaging device capable of frame mode output with a sufficient frame rate; a mechanical manipulator having at least one rotational axis located in a position other than the focal point of the x-ray source; a position detection mechanism for detecting the camera position in 1D, 2D or 3D depending of the complexity of the trajectory; a final image reconstruction mechanism for reconstructing the final images out of the stored frames; a real time storage system such as RAM, hard drive or an drive array able to store all the frames captured during an exposure; and a digital processing unit capable of executing the reconstruction algorithm, such components being interconnected in operational arrangement. The system produces selectively dental panoramic x-ray images, dental transversal x-ray images and dental tomosynthetic 3D images from a frame stream produced by a high-speed, x-ray digital imaging device.
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2.发明公开High energy, real time capable, direct radiation conversion x-ray imaging system for CD-TE and CD-ZN-TE based cameras 有权基于CD-TE和CD-ZN-TE的高性能，实时的直接辐射转换X射线成像系统
公开(公告)号：EP1795918A8
公开(公告)日：2010-06-09
申请号：EP07104046.3
申请日：2005-07-01
申请人： Oy Ajat Ltd.
IPC分类号： G01T1/24 , H01L27/146 , H01L31/0296
CPC分类号： H01L27/14634 , H01L31/0296 , H04N5/325 , H04N5/3651 , H04N5/367
摘要： A calibrated real-time, high energy X-ray imaging system is disclosed which incorporates a direct radiation conversion, X-ray imaging camera and a high speed image processing module. The high energy imaging camera utilizes a Cd-Te or a Cd-Zn-Te direct conversion detector substrate. The image processor includes a software driven calibration module that uses an algorithm to analyze time dependent raw digital pixel data to provide a time related series of correction factors for each pixel in an image frame. Additionally, the image processor includes a high speed image frame processing module capable of generating image frames at frame readout rates of greater than ten frames per second to over 100 frames per second. The image processor can provide normalized image frames in real-time or can accumulate static frame data for substantially very long periods of time without the typical concomitant degradation of the signal-to-noise ratio.
摘要翻译： 公开了一种校准的实时高能量X射线成像系统，其包含直接辐射转换，X射线成像相机和高速图像处理模块。 高能量成像相机使用Cd-Te或Cd-Zn-Te直接转换检测器基板。 图像处理器包括软件驱动校准模块，该模块使用算法来分析时间相关的原始数字像素数据以为图像帧中的每个像素提供与时间相关的一系列校正因子。 另外，图像处理器包括高速图像帧处理模块，其能够以大于每秒十帧的帧读出速率产生超过每秒100帧的图像帧。 图像处理器可以实时提供标准化的图像帧，或者可以基本上非常长的时间周期地累积静态帧数据，而没有典型的伴随的信噪比下降。
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公开(公告)号：EP2223651B2
公开(公告)日：2018-08-15
申请号：EP10164289.0
申请日：2006-11-10
申请人： Oy Ajat Ltd.
CPC分类号： A61B6/14 , A61B6/466 , A61B6/5241 , A61B6/547 , G01T1/247 , G03B42/042 , G06T7/55 , G06T7/579 , G06T7/97 , G06T2207/10116 , G06T2207/30036 , H04N5/23238 , H04N5/32
摘要： A multi-layer dental panoramic and transversal x-ray imaging system includes an x-ray source; a digital imaging device capable of frame mode output with a sufficient frame rate; a mechanical manipulator having at least one rotational axis located in a position other than the focal point of the x-ray source; a position detection mechanism for detecting the camera position in 1D, 2D or 3D depending of the complexity of the trajectory; a final image reconstruction mechanism for reconstructing the final images out of the stored frames; a real time storage system such as RAM, hard drive or an drive array able to store all the frames captured during an exposure; and a digital processing unit capable of executing the reconstruction algorithm, such components being interconnected in operational arrangement. The system produces selectively dental panoramic x-ray images, dental transversal x-ray images and dental tomosynthetic 3D images from a frame stream produced by a high-speed, x-ray digital imaging device.
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5.发明授权A single sensor multi-functional dental extra-oral x-ray imaging system and method 有权单传感器多功能牙科口外X射线成像系统和方法
公开(公告)号：EP2609864B1
公开(公告)日：2018-04-11
申请号：EP13156156.5
申请日：2009-01-14
申请人： Oy Ajat Ltd.
IPC分类号： A61B6/14
CPC分类号： A61B6/588 , A61B6/14 , A61B6/4441 , G06T11/006
摘要： Extra-oral dental x-ray imaging methods and systems are disclosed. An x-ray source exposes x-rays to an object to be imaged and an x-ray imaging device produces multiple frames during at least part of the exposure. The x-ray imaging device has an active area with a long dimension m and a short dimension n with m/n at least 1.5. A manipulator moves along a path the imaging device between consecutive radiated frames during exposure. The manipulator enables movement of the x-ray source and the imaging device by means of selective translation and rotation about at least one rotational axis located between a focal point of the x-ray source and the x-ray imaging device. An exposure profile program produces a substantially linear projection of at least part of said object to be imaged, said exposure profile program comprising at least one substantially linear section.
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公开(公告)号：EP2223651A1
公开(公告)日：2010-09-01
申请号：EP10164289.0
申请日：2006-11-10
申请人： Oy Ajat Ltd.
IPC分类号： A61B6/14
CPC分类号： A61B6/14 , A61B6/466 , A61B6/5241 , A61B6/547 , G01T1/247 , G03B42/042 , G06T7/55 , G06T7/579 , G06T7/97 , G06T2207/10116 , G06T2207/30036 , H04N5/23238 , H04N5/32
摘要： A multi-layer dental panoramic and transversal x-ray imaging system includes an x-ray source; a digital imaging device capable of frame mode output with a sufficient frame rate; a mechanical manipulator having at least one rotational axis located in a position other than the focal point of the x-ray source; a position detection mechanism for detecting the camera position in 1D, 2D or 3D depending of the complexity of the trajectory; a final image reconstruction mechanism for reconstructing the final images out of the stored frames; a real time storage system such as RAM, hard drive or an drive array able to store all the frames captured during an exposure; and a digital processing unit capable of executing the reconstruction algorithm, such components being interconnected in operational arrangement. The system produces selectively dental panoramic x-ray images, dental transversal x-ray images and dental tomosynthetic 3D images from a frame stream produced by a high-speed, x-ray digital imaging device.
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公开(公告)号：EP2902808B1
公开(公告)日：2017-02-22
申请号：EP15157246.8
申请日：2008-06-19
申请人： OY AJAT Ltd.
CPC分类号： A61B6/14 , A61B6/466 , A61B6/547 , G01T1/2018 , G01T1/2928
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8.发明公开Radiation imaging device comprising array of Cd(Zn)Te detectors 有权Strahlungsbildgebungsvorrichtung mit Cd（Zn）Te-Detektorenarray
公开(公告)号：EP2902808A1
公开(公告)日：2015-08-05
申请号：EP15157246.8
申请日：2008-06-19
申请人： OY AJAT Ltd.
CPC分类号： A61B6/14 , A61B6/466 , A61B6/547 , G01T1/2018 , G01T1/2928
摘要： A radiation imaging device comprises a plurality of individual detectors (13) positioned adjacently and defining an active area responsive to x-rays. Each of the individual detectors has a rectangular shape and they define together an overall active area with a length y and a width x. The device comprises at least one detector module on which said individual detectors are mounted. The individual detectors comprise at least two individual Cd(Zn)Te detectors juxtaposed next to each other with an average physical gap (14) of at least 0.005 mm between the outside-most edges of the Cd(Zn)Te detectors.
摘要翻译： 辐射成像装置包括相邻定位的多个单独的检测器（13）并且限定响应于X射线的有效区域。 每个单独的检测器具有矩形形状，并且它们一起定义具有长度y和宽度x的整体有效区域。 该装置包括至少一个检测器模块，所述各个检测器安装在该检测器模块上。 各个检测器包括彼此相邻并且在Cd（Zn）Te检测器的最外边缘之间具有至少0.005mm的平均物理间隙（14）的至少两个单独的Cd（Zn）Te检测器。
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9.发明公开A single sensor multi-functional dental extra-oral x-ray imaging system and method 有权Dentales extorales Multifunktions-Röntgenbildgebungssystemmit einem einzigen传感器筛选Verfahren
公开(公告)号：EP2609864A1
公开(公告)日：2013-07-03
申请号：EP13156156.5
申请日：2009-01-14
申请人： Oy Ajat Ltd.
IPC分类号： A61B6/14
CPC分类号： A61B6/588 , A61B6/14 , A61B6/4441 , G06T11/006
摘要： Extra-oral dental x-ray imaging methods and systems are disclosed. An x-ray source exposes x-rays to an object to be imaged and an x-ray imaging device produces multiple frames during at least part of the exposure. The x-ray imaging device has an active area with a long dimension m and a short dimension n with m/n at least 1.5. A manipulator moves along a path the imaging device between consecutive radiated frames during exposure. The manipulator enables movement of the x-ray source and the imaging device by means of selective translation and rotation about at least one rotational axis located between a focal point of the x-ray source and the x-ray imaging device. An exposure profile program produces a substantially linear projection of at least part of said object to be imaged, said exposure profile program comprising at least one substantially linear section.
摘要翻译： 公开了口腔外x射线成像方法和系统。 X射线源将X射线暴露于要成像的对象，并且x射线成像装置在至少部分曝光期间产生多个帧。 x射线成像装置具有长尺寸m和短尺寸n的有源区域，m / n至少为1.5。 在曝光期间，操纵器沿着连续辐射框架之间的成像装置的路径移动。 操纵器能够通过围绕位于x射线源的焦点与x射线成像装置之间的至少一个旋转轴的选择性平移和旋转来实现X射线源和成像装置的移动。 曝光轮廓程序产生所述待成像对象的至少一部分的基本上线性的投影，所述曝光轮廓程序包括至少一个基本线性的部分。
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10.发明公开
公开(公告)号：EP2221003A1
公开(公告)日：2010-08-25
申请号：EP10164301.3
申请日：2006-11-10
申请人： Oy Ajat Ltd.
IPC分类号： A61B6/14
摘要： A multi-layer dental panoramic and transversal x-ray imaging system includes an x-ray source; a digital imaging device capable of frame mode output with a sufficient frame rate; a mechanical manipulator having at least one rotational axis located in a position other than the focal point of the x-ray source; a position detection mechanism for detecting the camera position in 1D, 2D or 3D depending of the complexity of the trajectory; a final image reconstruction mechanism for reconstructing the final images out of the stored frames; a real time storage system such as RAM, hard drive or an drive array able to store all the frames captured during an exposure; and a digital processing unit capable of executing the reconstruction algorithm, such components being interconnected in operational arrangement. The system produces selectively dental panoramic x-ray images, dental transversal x-ray images and dental tomosynthetic 3D images from a frame stream produced by a high-speed, x-ray digital imaging device.
摘要翻译： 多层牙科全景和横向X射线成像系统包括x射线源; 能够以足够的帧速率输出帧模式的数字成像装置; 机械操纵器，其具有至少一个位于除x射线源的焦点之外的位置的旋转轴; 位置检测机构，用于根据轨迹的复杂度来检测1D，2D或3D中的相机位置; 用于从存储的帧重建最终图像的最终图像重构机构; 实时存储系统，例如RAM，硬盘驱动器或能够存储在曝光期间捕获的所有帧的驱动器阵列; 以及能够执行重建算法的数字处理单元，这些部件以操作布置相互连接。 该系统从由高速x射线数字成像装置产生的帧流中选择性地生成牙齿全景X射线图像，牙科横向X射线图像和牙科合成3D图像。
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