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    • 3. 发明授权
      EP3295202B1 METHOD AND DEVICE FOR MAGNETIC RESONANCE IMAGING WITH IMPROVED SENSITIVITY BY NOISE REDUCTION 有权
    • METHOD AND DEVICE FOR MAGNETIC RESONANCE IMAGING WITH IMPROVED SENSITIVITY BY NOISE REDUCTION
    • EP3295202B1
    • 2018-07-25
    • EP15720915.6
    • 2015-05-08
    • Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
    • MARSCHNER, Henrik , PAMPEL, André , MÖLLER, Harald
    • G01R33/56 , G06T5/10 , G06T5/00
    • G06T11/005 , A61B5/055 , A61B5/7203 , G01R33/5608 , G01R33/56545 , G06T3/0068 , G06T5/002 , G06T5/10 , G06T2207/10088 , G06T2207/20064 , G06T2207/30016
    • A method of image processing of magnetic resonance (MR) images for creating de-noised MR images, comprises the steps of providing image data sets including multiple complex MR images (S7), subjecting the MR images to a wavelet decomposition (S12) for creating coefficient data sets of wavelet coefficients (Sn,m) representing the MR images in a wavelet frequency domain, calculating normalized coefficient data sets of wavelet coefficients Formula (I) (S17), wherein the coefficient data sets are normalized with a quantitative amount of variation, in particular standard deviation Formula (II), of noise contributions included in the coefficient data sets (Sn,m), averaging the wavelet coefficients of each coefficient data set (S18) for providing averaged wavelet coefficients Formula (III) of the coefficient data sets, calculating phase difference maps (Δφn,m) for all coefficient data sets (S20), wherein the phase difference maps provide phase differences between the phase of each wavelet coefficient and the phase of the averaged wavelet coefficients Formula (III), calculating scaled averaged coefficient data sets of wavelet coefficients by scaling the averaged wavelet coefficients Formula (III) with scaling factors (Cn,m), which are obtained by comparing parts of the normalized wavelet coefficients of the normalized coefficient data sets Formula (I) that are in phase with the averaged wavelet coefficients Formula (III) (S22), calculating rescaled coefficient data sets of wavelet coefficients Formula (IV) (S24) by applying a transfer function Formula (V) on the coefficient data sets (Sn,m) and on the scaled averaged coefficient data sets, wherein the transfer function includes combined amplitude and phase filters, each depending on the normalized coefficient data sets Formula (I) and me phase difference maps (Δφn,m), resp., and subjecting the rescaled coefficient data sets to a wavelet reconstruction Formula (IV) (S25) for providing the denoised MR images.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 7. 发明公开
      EP3188120A1 REGISTERING FIRST IMAGE DATA OF A FIRST STREAM WITH SECOND IMAGE DATA OF A SECOND STREAM 有权
    • REGISTERING FIRST IMAGE DATA OF A FIRST STREAM WITH SECOND IMAGE DATA OF A SECOND STREAM
    • 利用第二流的第二图像数据来注册第一流的第一图像数据
    • EP3188120A1
    • 2017-07-05
    • EP15202840.3
    • 2015-12-28
    • MedCom Gesellschaft für medizinische Bildverarbeitung mbH , Esaote S.p.A.
    • Sakas, Prof. Georgios , Kolev, Velizar , De Beni, Stefano , Forzoni, Leonardo
    • G06T3/00 , G06T7/00 , A61B6/00
    • G06T7/33 , G06T3/0068 , G06T7/0012 , G06T7/38 , G06T2207/10016 , G06T2207/30004 , G06T2207/30048 , G06T2207/30061 , G06T2207/30196
    • The invention relates to a method of registering first image data of a first stream with second image data of a second stream, the first image data and the second image data comprising image information about a person or animal including image information about at least one organ (Or) of the person or animal, wherein a shape and/or position of the organ (Or) is changing thereby performing a cyclic change of the shape and/or position, and wherein:
      • each of the first stream and the second stream comprises a series of images (F) of the at least one organ (Or) at a plurality of different discrete stages of the cyclic change of the shape and/or position so that each of the images (F) corresponds to one of the discrete stages of the cyclic change of the shape and/or position,
      • a phase variable (p) is used to define the stage of the cyclic change of the shape and/or position and a phase value of the phase variable (p) is assigned to each of the images (F) within each of the first and second stream thereby defining unambiguously the discrete stage of the cyclic change of the shape and/or position represented by the image (F) instead of the time during a specific cycle when the image (F) was taken,
      • a registration, i.e. location-to-location associations of image values, is determined for a pair of images (F) consisting of a first image of the first stream and a second image of the second stream, wherein the first image and the second image of the pair are selected by choosing or interpolating an image from the first stream and by choosing or interpolating an image from the second stream to which the same phase value (pr) is assigned.
    • 本发明涉及一种将第一流的第一图像数据与第二流的第二图像数据进行配准的方法，第一图像数据和第二图像数据包括关于包括关于至少一个器官的图像信息的人或动物的图像信息 或者），其中所述器官（Or）的形状和/或位置正在改变，由此执行所述形状和/或位置的循环变化，并且其中：·所述第一流和所述第二流中的每一个包括 在所述形状和/或位置的循环变化的多个不同离散阶段处的所述至少一个器官（Or）的一系列图像（F），使得所述图像（F）中的每一个对应于所述离散阶段中的一个 •形状和/或位置的周期性变化•相位变量（p）用于定义形状和/或位置的循环变化阶段，并且相位变量（p）的相位值被分配给 第一个和第一个中的每一个内的图像（F）中的每一个 从而明确定义由图像（F）表示的形状和/或位置的周期性变化的离散阶段，而不是在拍摄图像（F）时的特定周期期间的时间，●配准，即位置 - 针对由第一流的第一图像和第二流的第二图像组成的一对图像（F）确定图像值的定位关联，其中该对的第一图像和第二图像由 选择或内插来自第一流的图像，以及通过选择或内插来自第二流的图像，其中分配了相同的相位值（pr）。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 8. 发明公开
      EP3176755A1 INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM 审中-公开
    • INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM
    • 信息管理部门，信息化计划
    • EP3176755A1
    • 2017-06-07
    • EP15826720.3
    • 2015-05-25
    • Sony Corporation
    • IGARASHI, Tatsuya , KIKKAWA, Norifumi
    • G06T19/00 , G06F3/048
    • H04N5/44504 , G06F3/013 , G06F3/048 , G06T3/0068 , G06T19/00 , H04N5/23216 , H04N5/23293
    • The present disclosure is intended to display registration information on a real-world registration information setting point and update the display with detection of an event in accordance with a change in the context as a trigger. A control for displaying a virtual object including registration information on a real-world registration information setting point is performed. The data processing unit performs a process for displaying registration information described in control data and a process for updating the display in accordance with a change in predefined context. Further, the data processing unit displays the virtual object indicative of the registration information setting point in conjunction with the display of the registration information. The data processing unit calculates the positional relationship between an information processing apparatus and the registration information setting point on the basis of the position, direction, and the like of a reference image (anchor) detected from the shot image in a virtual three-dimensional space, and displays the virtual object indicative of the registration information setting point on the basis of the calculated positional relationship and a change in the context.
    • 本公开旨在在真实世界注册信息设置点上显示注册信息，并且根据上下文的改变作为触发来检测事件的更新显示。 执行用于在真实世界注册信息设置点上显示包括注册信息的虚拟对象的控件。 数据处理单元执行用于显示控制数据中描述的注册信息和根据预定上下文的变化更新显示的处理的处理。 此外，数据处理单元结合登记信息的显示显示指示登记信息设定点的虚拟对象。 数据处理单元基于在虚拟三维空间中从拍摄图像检测到的参考图像（锚）的位置，方向等来计算信息处理装置与登记信息设定点之间的位置关系 并且基于所计算的位置关系和上下文的改变来显示指示注册信息设置点的虚拟对象。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
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