Device and process for manipulating real and virtual objects in three-dimensional space
    3.
    发明授权
    Device and process for manipulating real and virtual objects in three-dimensional space 失效
    用于在三维空间中操纵实体和虚拟对象的设备和过程

    公开(公告)号:US07466303B2

    公开(公告)日:2008-12-16

    申请号:US10776421

    申请日:2004-02-10

    IPC分类号: G09G5/00

    摘要: A device and software system with input and output capability for manipulating real and virtual objects in 3-dimensional space. The device consists of a six degree-of-freedom mechanical armature that has sensors to determine the location and orientation of a stylus and planar surface. In the input mode, manipulation of the physical armature will result in a corresponding two-dimensional, virtual image of the stylus and surface on a computer screen. The armature also has motors to automatically change the armature location and orientation in order to generate a physical representation in the real world of the location and orientation of a virtual object. The armature is built so that it maintains balance at any location and orientation to statically maintain the armature location and orientation without drifting to a null rest position.

    摘要翻译: 具有输入和输出能力的设备和软件系统,用于在三维空间中操纵实际和虚拟对象。 该装置由六个自由度的机械衔铁组成,其具有用于确定触针和平面表面的位置和取向的传感器。 在输入模式中,物理电枢的操纵将导致计算机屏幕上触针和表面的相应的二维虚拟图像。 电枢还具有电动机以自动改变电枢位置和方向,以便在虚拟物体的位置和方向的现实世界中产生物理表示。 电枢被构建成使得其在任何位置和方向上保持平衡,以静态地维持电枢的位置和取向而不会漂移到零静止位置。

    System and method for generating spectra
    5.
    发明授权
    System and method for generating spectra 有权
    用于产生光谱的系统和方法

    公开(公告)号:US06753683B2

    公开(公告)日:2004-06-22

    申请号:US10063818

    申请日:2002-05-15

    IPC分类号: G01V300

    摘要: A system and method for adaptive averaging of velocity spectra using variable density trajectories, comprising: acquiring at least one series of velocity spectra using interleaved variable density trajectories and sampling low kv data more often or more densely than high kv data, the series of velocity spectra further comprising at least one spectrum; identifying a series of velocity spectra that comprises at least one velocity spectrum as a template, aligning at least one of the acquired series of velocity spectra with the template using low kv data; and averaging the aligned spectra, the averaging further comprising averaging the low kv data of the aligned spectra, and combining the averaged low kv data with the high kv data of the aligned spectra, wherein the combination produces enhanced spectra.

    摘要翻译: 一种用于使用可变密度轨迹自适应平均速度谱的系统和方法,包括:使用交错的可变密度轨迹获取至少一系列速度谱,并且比高kv数据更频密或更密集地采样低kv数据,该系列速度谱 还包括至少一个光谱; 识别包含至少一个速度谱作为模板的一系列速度谱,使用低kv数据将所获取的一系列速度谱与模板对准; 并且平均对准的光谱,所述平均还包括平均对准的光谱的低kv数据,以及将平均的低kv数据与对准的光谱的高kv数据组合,其中该组合产生增强的光谱。

    Systems and methods for phase encode placement
    6.
    发明授权
    Systems and methods for phase encode placement 有权
    用于相位编码放置的系统和方法

    公开(公告)号:US08326399B2

    公开(公告)日:2012-12-04

    申请号:US12576917

    申请日:2009-10-09

    IPC分类号: A61B5/05

    CPC分类号: G01R33/54

    摘要: A method for a medical examination is provided. The method includes acquiring at least two datasets that include data acquired at a plurality of points that lie along at least two lines through a center of k-space, reconstructing the at least two datasets to generate an image, and outputting the image.

    摘要翻译: 提供了一种用于体格检查的方法。 所述方法包括获取至少两个数据集,所述至少两个数据集包括通过k空间的中心沿着至少两条线位于多个点处获取的数据,重建所述至少两个数据集以生成图像,以及输出图像。

    Method and apparatus for reconstruction of non-uniformly sampled data
    7.
    发明授权
    Method and apparatus for reconstruction of non-uniformly sampled data 有权
    重建非均匀采样数据的方法和装置

    公开(公告)号:US06975751B2

    公开(公告)日:2005-12-13

    申请号:US10147708

    申请日:2002-05-17

    IPC分类号: G06T5/00 G06K9/00

    CPC分类号: G01R33/4824 G01R33/56545

    摘要: A method for reconstructing non-uniformly sampled data to create an image includes: receiving a new partial data set, the new partial data set including a vector of non-uniformly sampled data at k-space positions; subtracting an old partial data set at the same k-space positions from the new partial data set to create a difference vector; gridding the difference vector to create a difference matrix; adding the difference matrix to a frame of previously gridded data to create a new frame; and transforming the new frame to create the image. In one embodiment, gridding includes constructing a gridding table for a data point in a complete data set, and convolving a data point in the difference vector with the gridding table. In another embodiment at least one of a grid size and a first parameter of the window function is optimized using input parameters for at least one of aliasing energy and computation time.

    摘要翻译: 一种用于重建非均匀采样数据以创建图像的方法包括:接收新的部分数据集,所述新的部分数据集包括在k空间位置处的非均匀采样数据的矢量; 从新的部分数据集中减去相同k空间位置处的旧的部分数据集以创建差分矢量; 网格化差分向量以创建差分矩阵; 将差分矩阵添加到先前网格数据的帧以创建新帧; 并转换新的帧来创建图像。 在一个实施例中,网格化包括为完整数据集中的数据点构建网格表,以及将差分矢量中的数据点与网格表进行卷积。 在另一个实施例中,使用用于混叠能量和计算时间中的至少一个的输入参数优化窗函数的网格大小和第一参数中的至少一个。