Oral implant template
    83.
    发明专利
    Oral implant template 审中-公开
    口腔植入模板

    公开(公告)号:JP2010115502A

    公开(公告)日:2010-05-27

    申请号:JP2009298874

    申请日:2009-12-28

    发明人: FELDMAN ANDREI

    摘要: PROBLEM TO BE SOLVED: To provide a method for producing an artifact-corrected image of a negative jaw impression in a recipient jaw. SOLUTION: This method for producing an artifact-corrected image of a negative jaw impression in a recipient jaw includes: a process of forming a negative impression of the recipient jaw; a process of producing a first digital image of the negative jaw impression; a process of producing a second digital image including the artifacts of the negative jaw impression in the recipient jaw; and a process of using the first digital image to produce an artifact-corrected computer representation of the negative impression in the recipient jaw. COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种用于在接受者颚中产生负颌印模的伪影校正图像的方法。 解决方案:用于在接受者钳口中产生负颌印模的伪影校正图像的方法包括:形成接受者颚的负印象的过程; 产生负下巴印象的第一数字图像的过程; 产生第二数字图像的过程,所述第二数字图像包括所述接受者颚中的所述负颌印象的伪影; 以及使用第一数字图像在接收者颚中产生负面印象的伪影校正的计算机表示的过程。 版权所有(C)2010,JPO&INPIT

    Radiation detector, radiation image radiographing system and temperature compensating method
    84.
    发明专利
    Radiation detector, radiation image radiographing system and temperature compensating method 有权
    辐射检测器,辐射图像放射系统和温度补偿方法

    公开(公告)号:JP2010075671A

    公开(公告)日:2010-04-08

    申请号:JP2009148744

    申请日:2009-06-23

    摘要: PROBLEM TO BE SOLVED: To certainly perform the compensation of temperature to at least one change of the sensitivity, dark current, difference in level of density and afterimage in a radiation converting panel caused by a change in the temperature of the radiation converting panel. SOLUTION: A radiation detector 10 includes the radiation converting panel 40 for detecting the radiation 14 transmitted through a subject 18 to convert the same to radiation image data, a temperature detecting means 36 for detecting the temperature of the radiation converting panel 40 and a correction means 88 for correcting at least one of the sensitivity, dark current, difference in level of density and afterimage in the radiation converting panel 40 on the basis of the detected temperature. COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:为了将辐射转换板的温度变化引起的辐射转换板中的灵敏度,暗电流,密度等级和残像差的至少一个变化确定地进行温度补偿 面板。 解决方案:辐射检测器10包括用于检测透过被检体18的辐射14以将其转换为放射线图像数据的辐射转换面板40,用于检测辐射转换面板40的温度的温度检测装置36,以及 校正装置88,用于基于检测到的温度来校正辐射转换面板40中的灵敏度,暗电流,密度水平和残留图像中的至少一个。 版权所有(C)2010,JPO&INPIT

    X-ray ct system
    87.
    发明专利
    X-ray ct system 审中-公开
    X射线CT系统

    公开(公告)号:JP2008043820A

    公开(公告)日:2008-02-28

    申请号:JP2007283412

    申请日:2007-10-31

    IPC分类号: A61B6/03

    CPC分类号: A61B6/584 A61B6/5258

    摘要: PROBLEM TO BE SOLVED: To determine a more accurate beam hardening (BH) correction coefficient. SOLUTION: In an X-ray CT system, an annular (sector) phantom 330 uniform in thickness and cross section is positioned and scanned from many directions to acquire a plurality of views and the results of the scan is used to calculate a correction coefficient that is used to correct projection information to be acquired from a subject. COPYRIGHT: (C)2008,JPO&INPIT

    摘要翻译: 要解决的问题:确定更精确的束强化(BH)校正系数。 解决方案:在X射线CT系统中,将厚度和横截面均匀的环形(扇形)体模330从许多方向定位和扫描以获得多个视图,并且扫描结果用于计算 用于校正要从对象获取的投影信息的校正系数。 版权所有(C)2008,JPO&INPIT

    Medical image display device
    88.
    发明专利
    Medical image display device 有权
    医学图像显示装置

    公开(公告)号:JP2007202916A

    公开(公告)日:2007-08-16

    申请号:JP2006027624

    申请日:2006-02-03

    IPC分类号: A61B6/00 G06T5/00

    CPC分类号: A61B6/5258

    摘要: PROBLEM TO BE SOLVED: To provide a medical image display device and a X-ray imaging device capable of reducing moire while the effect to other areas caused by partly correcting the image is decreased. SOLUTION: An image obtaining part obtains an image including moire, and a measuring part is a local area including every target pixel of the obtained image, and it measures the total amount of pixel value in the area of parallel direction to the running direction of moire (S1). A decision part decides the size of a filter for reducing moire based on the measured total amount (S3). A filter part performs filtering treatment to the target pixel with the decided size in the orthogonal direction of the moire running direction (S4). COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:提供能够减少莫尔条纹的医学图像显示装置和X射线成像装置,同时减少由部分校正图像引起的对其他区域的影响。 解决方案:图像获取部分获得包括莫尔条纹的图像,并且测量部分是包括所获得图像的每个目标像素的局部区域,并且其测量与运行中的平行方向区域中的像素值的总量 莫尔条纹(S1)。 决定部分基于测量的总量来决定用于减少莫尔条纹的过滤器的尺寸(S3)。 滤波器部件在莫尔条纹行进方向的正交方向上以所确定的尺寸对目标像素执行滤波处理(S4)。 版权所有(C)2007,JPO&INPIT

    X-ray ct imaging method and x-ray ct apparatus
    90.
    发明专利
    X-ray ct imaging method and x-ray ct apparatus 有权
    X射线CT成像方法和X射线CT装置

    公开(公告)号:JP2007130288A

    公开(公告)日:2007-05-31

    申请号:JP2005327266

    申请日:2005-11-11

    IPC分类号: A61B6/03

    摘要: PROBLEM TO BE SOLVED: To achieve an adjustment of a CT value which is a pixel value of a tomographic image in the conventional scan (axial scan), cine scan, or helical scan by an X-ray CT apparatus with a multi-array X-ray detector or a two-dimensional area X-ray detector of a matrix arrangement represented by a multi-row X-ray detector or a flat panel detector. SOLUTION: The gain and bias of the projection data of each row are adjusted prior to three-dimensional back projection or reconstruction function convolution. Alternatively, the gain and bias are adjusted after determining the gain and bias value to adjust the CT value by taking account of the contribution rate to a tomographic image of each row after the three-dimensional back projection, or the gain and bias are adjusted after determining the gain and bias value to adjust the CT value by taking account of the contribution rate to the tomographic image of each row relying on the position of each row in z direction in case of axial scan after the three-dimensional back projection. COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:为了实现在常规扫描(轴向扫描),电影扫描或具有多个X射线CT的X射线CT装置的螺旋扫描中的断层图像的像素值的CT值的调整 射线X射线检测器或由多排X射线检测器或平板检测器表示的矩阵布置的二维区域X射线检测器。 解决方案:在三维反投影或重建函数卷积之前,调整每行投影数据的增益和偏置。 或者,在确定增益和偏置值之后调整增益和偏差,以通过考虑对三维背投影之后的每行的断层图像的贡献率来调整CT值,或者在经过三维反投影之后调整增益和偏差 通过考虑到在三维背投影之后的轴向扫描的情况下,依赖于z方向上的每行的位置的每行的断层图像的贡献率来确定增益和偏置值来调整CT值。 版权所有(C)2007,JPO&INPIT