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    • 104. 发明申请
    • SUSCEPTIBILITY GRADIENT MAPPING
    • 易感性梯度映射
    • WO2011089551A2
    • 2011-07-28
    • PCT/IB2011/050230
    • 2011-01-19
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHSÉNÉGAS, JulienPERKINS, Thomas
    • SÉNÉGAS, JulienPERKINS, Thomas
    • G01R33/565
    • G01R33/56536G01R33/286G01R33/5601G01R33/5615
    • The invention relates to a method of determining a susceptibility gradient map, the method comprising acquiring (300) a magnetic resonance k- space dataset, said dataset comprising magnetic resonance echo data, wherein a recursive iteration is used to determine the susceptibility gradient map. Further, the invention relates to a method of determining a susceptibility gradient map, the method comprising acquiring a magnetic resonance k-space dataset, said dataset comprising magnetic resonance echo data, wherein the acquired dataset comprises magnetic resonance echo data of multiple echoes with different echo times, wherein a susceptibility gradient map is determined separately for each echo time resulting in a temporary susceptibility gradient map, wherein the method further comprises calculating a total susceptibility gradient map by combining all determined temporary susceptibility gradient maps.
    • 本发明涉及一种确定磁化率梯度地图的方法,该方法包括获取(300)的磁共振k-空间数据集,所述数据集包括磁共振回波数据,其中,递归迭代使用 以确定磁化率梯度图。 此外,本发明涉及一种确定磁化率梯度地图的方法,该方法包括获取磁共振k空间数据集,所述数据集包括磁共振回波数据,其中,所获取的数据集包括具有不同回波多重回波的磁共振回波数据 其中针对每个回波时间分别确定磁化率梯度图以产生临时磁化率梯度图,其中所述方法进一步包括通过组合所有确定的临时磁化率梯度图来计算总磁化率梯度图。

    • 108. 发明申请
    • BONE SUPPRESSION IN X-RAY RADIOGRAMS
    • 在X射线放射治疗中的骨抑制
    • WO2011077334A1
    • 2011-06-30
    • PCT/IB2010/055876
    • 2010-12-16
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHVON BERG, JensNEITZEL, Ulrich
    • VON BERG, JensNEITZEL, Ulrich
    • G06T7/00
    • G06T7/0083A61B6/5258G06T7/12G06T2207/10116G06T2207/30008
    • The invention relates to a system (100) for extracting an object (Ob) from a source image, said object being delineated by a contour (C), the system (100) comprising a gradient unit (110) for computing the source image gradient field, based on the source image, a smoothing unit (120) for smoothing the source image gradient field, and an integration unit (130) for calculating an object image by integrating the smoothed source image gradient field, thereby extracting the object (Ob) from the source image. At each point of the source image, the smoothing is defined by a 2-dimensional convolution kernel which is a product of a first 1 -dimensional convolution kernel in the first direction substantially parallel to the contour (C), and a second 1 -dimensional convolution kernel in the second direction substantially normal to the contour (C). The first 1-dimensional convolution kernel defines smoothing within each region separated by the contour, while the second 1-dimensional convolution kernel defines smoothing across the contour separating two regions, independently of the orientation of the object and the contour curvature.
    • 本发明涉及一种用于从源图像提取对象(Ob)的系统(100),所述对象由轮廓(C)描绘,所述系统(100)包括梯度单元(110),用于计算源图像梯度 字段,基于源图像,平滑源图像梯度场的平滑单元(120),以及用于通过对平滑源图像梯度场进行积分来计算对象图像的积分单元(130),从而提取对象(Ob) 从源图像。 在源图像的每个点处,平滑由二维卷积核定义,该二维卷积核是在基本上平行于轮廓(C)的第一方向上的第一个1维卷积核的乘积,第二个1维 卷积核心在大致垂直于轮廓(C)的第二方向上。 第一个1维卷积内核定义在由轮廓分隔的每个区域内的平滑,而第二个1维卷积内核定义了分离两个区域的轮廓的平滑,独立于物体的方向和轮廓曲率。
    • 110. 发明申请
    • DIGITAL RIGHTS MANAGEMENT USING ATTRIBUTE-BASED ENCRYPTION
    • 使用基于属性加密的数字权限管理
    • WO2011073894A1
    • 2011-06-23
    • PCT/IB2010/055792
    • 2010-12-14
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.ASIM, MuhammadPETKOVIC, MilanLENOIR, Petrus, Johannes
    • ASIM, MuhammadPETKOVIC, MilanLENOIR, Petrus, Johannes
    • G06F21/00
    • G06F21/10G06F2221/0715G06F2221/0717G06F2221/0746G06F2221/2141H04L9/088H04L2209/603
    • A data provider (1) for use in a digital rights management system comprises a data protector (2) for protecting data (20), using attribute-based encryption, in dependence on an access policy over a plurality of attributes. A license issuer (3) issues a license (17) comprising a representation of a set of usage rights (18), wherein the set of usage rights (18) is associated (19) with the data (20), for granting the usage rights (18) in respect of the data (20) to a plurality of entities (10) having attributes satisfying the access policy. A data receiver (10) comprises a data access subsystem (11) for accessing data, using attribute-based decryption, in dependence on a decryption key (16) associated with a set of attributes. The data receiver (10) further comprises a usage constraining subsystem (12) for constraining the access to the data (20), based on a license (17) comprising a representation of a set of usage rights (18) associated (19) with the data.
    • 用于数字版权管理系统的数据提供者(1)包括一个数据保护器(2),用于根据多个属性上的访问策略,使用基于属性的加密来保护数据(20)。 许可证颁发者(3)发布许可证(17),其包括一组使用权(18)的表示,其中所述使用权利集合(18)与所述数据(20)相关联(19),用于授予所述使用权 关于数据(20)向具有满足访问策略的属性的多个实体(10)的权利(18)。 数据接收器(10)包括用于根据与一组属性相关联的解密密钥(16)使用基于属性的解密来访问数据的数据访问子系统(11)。 数据接收器(10)还包括用于约束对数据(20)的访问的使用约束子系统(12),所述许可证包括与一组相关联的使用权(18)的表示, 数据。