A METHOD OF AND A SYSTEM FOR ADAPTING A GEOMETRIC MODEL USING MULTIPLE PARTIAL TRANSFORMATIONS
    31.
    发明申请
    A METHOD OF AND A SYSTEM FOR ADAPTING A GEOMETRIC MODEL USING MULTIPLE PARTIAL TRANSFORMATIONS 审中-公开
    使用多部分变换来调整几何模型的方法和系统

    公开(公告)号:WO2007034425A2

    公开(公告)日:2007-03-29

    申请号:PCT/IB2006053396

    申请日:2006-09-20

    CPC classification number: G06T7/149 G06T7/12 G06T2207/10072 G06T2207/30048

    Abstract: The invention relates to a method (100) of adapting a geometric model to an image data comprising determining a first partial transformation for mapping a first part of the geometric model into the image data and a second partial transformation for mapping a second part of the geometric model into the image data. By determining the first partial transformation of the first part of the geometric model and the second partial transformation of the second part of the geometric model, the geometric model can assume more shapes and therefore can be more accurately adapted to an object comprised in the image data.

    Abstract translation: 本发明涉及一种使几何模型适应图像数据的方法(100),包括确定用于将几何模型的第一部分映射到图像数据中的第一部分变换和用于映射几何模型的第二部分的第二部分变换 建模成图像数据。 通过确定几何模型的第一部分的第一部分变换和几何模型的第二部分的第二部分变换,几​​何模型可以呈现更多的形状并且因此可以更准确地适应图像数据中包括的对象 。

    APPARATUS AND METHOD FOR DETERMINING AN INJECTION POINT FOR TARGETED DRUG DELIVERY
    32.
    发明申请
    APPARATUS AND METHOD FOR DETERMINING AN INJECTION POINT FOR TARGETED DRUG DELIVERY 审中-公开
    用于确定针对药物输送的注射点的装置和方法

    公开(公告)号:WO2006085288A3

    公开(公告)日:2006-10-26

    申请号:PCT/IB2006050459

    申请日:2006-02-13

    Abstract: The present invention relates to an apparatus for determining an injection point for targeted drug delivery into a patient's body by injection of the drug into a vessel feeding a target area including a target. To provide the interventionalist with an objective and quantitative assessment of potential drug injection points instead of letting him rely on his subjective impression from the visual inspection of DSA sequences, an apparatus is proposed comprising: identification means (41) for identification of a vessel tree topology of vessels feeding said target area, flow determination means (42) for determining the percentage of drug material delivered to said target after injection into different potential injection points in said vessel tree, selection means (43) for selecting as optimal injection point the potential injection point resulting in the highest percentage of drug delivery to said target.

    Abstract translation: 本发明涉及一种用于通过将药物注射到进食包括靶标的靶区域的血管中来确定靶向药物输送到患者体内的注射点的装置。 为了向介入者提供对潜在药物注射点的客观和定量评估,而不是让他依赖于他对DSA序列的视觉检查的主观印象,所以提出了一种装置,用于识别血管树形拓扑结构 供给所述目标区域的容器的流量确定装置(42),用于确定在注射到所述容器树中的不同潜在注入点之后输送到所述目标物的药物的百分比的选择装置(43),用于选择最佳注射点的潜在注射 指出,所述目标的药物分配比例最高。

    ADAPTIVE SAMPLING ALONG EDGES FOR SURFACE RENDERING
    33.
    发明申请
    ADAPTIVE SAMPLING ALONG EDGES FOR SURFACE RENDERING 审中-公开
    自适应采样在表面渲染边缘

    公开(公告)号:WO2005091227A8

    公开(公告)日:2006-10-12

    申请号:PCT/IB2005050791

    申请日:2005-03-03

    CPC classification number: G06T15/503

    Abstract: High frequency signals cannot be reconstructed properly from sampled data if the sampling frequency lies below the Nyquist rate. The invention addresses this problem by choosing few additional sample points along a trajectory intersecting the region comprising the high frequency signals, such as an edge. Intermediate rendering data is used to determine the additional sample points. Therefore, according to an exemplary embodiment of the present invention, 4 adaptively chosen sample points per pixel may provide a visual quality comparable to 16 times super-sampling, but at a much lower computational cost.

    Abstract translation: 如果采样频率低于奈奎斯特速率,则高频信号无法从采样数据正确重建。 本发明通过沿着与包括高频信号的区域(例如边缘)相交的轨迹的几个附加采样点来解决这个问题。 中间渲染数据用于确定附加采样点。 因此,根据本发明的示例性实施例,每像素4个自适应选择的采样点可以提供与16次超采样相当的视觉质量,但是以低得多的计算成本。

    MOTION ARTIFACT CORRECTION OF TOMOGRAPHICAL IMAGES
    34.
    发明申请
    MOTION ARTIFACT CORRECTION OF TOMOGRAPHICAL IMAGES 审中-公开
    运动图像校正

    公开(公告)号:WO2004008390A3

    公开(公告)日:2004-07-01

    申请号:PCT/IB0303011

    申请日:2003-07-08

    Abstract: The invention relates to a method in which the information contents of an image of a moving object is enhanced. The invention also relates to a system in which such a method can be carried out and to a computer program enabling a data processing unit to carry out such a method. The method is used notably in the field of medical imaging systems. According to the method first a first image of a moving object is acquired by means of a first imaging method, said image containing artifacts which are caused by the object motion. From two further images, acquired by means of a second imaging method and representing the object in a respective state of motion of the motion, there is formed a motion model which is implemented in a different manner in image processing or image forming steps, so that the information contents of either the first image or a combination image, formed from the first image and the two further images, is enhanced.

    Abstract translation: 本发明涉及一种增强移动物体的图像的信息内容的方法。 本发明还涉及一种可以执行这种方法的系统以及使数据处理单元能够执行这种方法的计算机程序。 该方法特别用于医学成像系统领域。 根据该方法,首先通过第一成像方法获取移动物体的第一图像,所述图像包含由物体运动引起的假象。 从通过第二成像方法获取并在运动的相应运动状态中表示对象的另外两个图像形成在图像处理或图像形成步骤中以不同的方式实现的运动模型,使得 增强了从第一图像和另外两个图像形成的第一图像或组合图像的信息内容。

    MODEL-BASED FLOW ANALYSIS AND VISUALIZATION
    36.
    发明申请
    MODEL-BASED FLOW ANALYSIS AND VISUALIZATION 审中-公开
    基于模型的流量分析和可视化

    公开(公告)号:WO2007066249A3

    公开(公告)日:2008-10-16

    申请号:PCT/IB2006054279

    申请日:2006-11-15

    CPC classification number: A61B6/504 A61B6/481 A61B6/507 G16H50/50

    Abstract: A system (900), method (100, 200) and apparatus (600, 700, 800) are provided for analyzing a blood flow in a vascular system from a dynamic diagnostic observation sequence (101) to determine blood flow parameters (112) for further determination of filters, replay speed and finally visualization of the replayed original and filtered sequences. A first embodiment (100) extracts features of the observation and uses these features to select an appropriate model from a database of pre-determined models of vascular system of interest which have associated parameters. These parameters are varied to create an instance of the model that best matches the original observation. A second embodiment (200) visualizes a replay of the original observation (101) and the observation (101') predicted by the model to highlight differences therebetween. A third embodiment (800) provides filtering and control of the replay speed.

    Abstract translation: 提供了一种系统(900),方法(100,200)和装置(600,700,800),用于从动态诊断观察序列(101)分析血管系统中的血流,以确定血流参数(112) 进一步确定滤镜,重放速度以及最终可重播的原始和过滤序列。 第一实施例(100)提取观察的特征并且使用这些特征从具有相关参数的感兴趣的血管系统的预定模型的数据库中选择适当的模型。 改变这些参数以创建与原始观察结果最匹配的模型实例。 第二实施例(200)可视化通过模型预测的原始观察(101)和观察(101')的重放以突出其间的差异。 第三实施例(800)提供重放速度的过滤和控制。

    METHOD FOR DISPLAYING HIGH RESOLUTION IMAGE DATA TOGETHER WITH TIME-VARYING LOW RESOLUTION IMAGE DATA
    37.
    发明申请
    METHOD FOR DISPLAYING HIGH RESOLUTION IMAGE DATA TOGETHER WITH TIME-VARYING LOW RESOLUTION IMAGE DATA 审中-公开
    用于显示具有时变低分辨率图像数据的高分辨率图像数据的方法

    公开(公告)号:WO2007057855A3

    公开(公告)日:2007-10-11

    申请号:PCT/IB2006054297

    申请日:2006-11-16

    CPC classification number: G06T15/10

    Abstract: A method allowing display of time-varying merged high resolution and low resolution image data with a smooth frame rate. In one embodiment the high resolution data is structural image data and the low resolution image data is functional image data. The functional image data is gathered (20) into groups and each group is rendered and merged (24) together. The merged images produced are then stored (28) in a First In First Out (FIFO) buffer for display. While the merged images are displayed the next set of functional image data is merged and rendered and supplied to the FIFO buffer, allowing a smooth frame rate to be achieved. A computer program and a medical imaging apparatus using the method are also disclosed.

    Abstract translation: 允许以平滑的帧速率显示时变合并的高分辨率和低分辨率图像数据的方法。 在一个实施例中,高分辨率数据是结构图像数据,低分辨率图像数据是功能图像数据。 将功能图像数据(20)收集到组中,并且将每个组渲染并合并(24)在一起。 然后将所生成的合并图像(28)存储在先进先出(FIFO)缓冲器中用于显示。 当显示合并的图像时,下一组功能图像数据被合并并呈现并提供给FIFO缓冲器,从而允许实现平滑的帧速率。 还公开了一种使用该方法的计算机程序和医学成像设备。

    PROGRESSIVE MODEL-BASED ADAPTATION
    38.
    发明申请
    PROGRESSIVE MODEL-BASED ADAPTATION 审中-公开
    基于模式的适应性

    公开(公告)号:WO2006137013A3

    公开(公告)日:2007-03-29

    申请号:PCT/IB2006051983

    申请日:2006-06-20

    Abstract: The invention relates to an adaptation system (200) for adapting a deformable model comprising a plurality of model elements to an object of interest in an image data set, said adaptation system (200)comprising a selector (220) for selecting at least one image- driven model element from the plurality of model elements and an adapter (230) for adapting the deformable model on the basis of optimizing a model energy of the deformable model, said model energy comprising an internal energy of the plurality of model elements and an external energy of the at least one image-driven model element, thereby adapting the deformable model. By enabling the adaptation system (200) to selectively choose the image- driven model elements, the adaptation system of the current invention allows excluding a poorly adaptable model element from interacting with the image data set and thus from being pulled and/or pushed by the image data set into a wrong location.

    Abstract translation: 本发明涉及一种用于将包括多个模型元素的可变形模型适配成图像数据集中的感兴趣对象的自适应系统(200),所述自适应系统(200)包括选择器(220),用于选择至少一个图像 - 来自多个模型元件的驱动模型元件和用于在优化可变形模型的模型能量的基础上适配可变形模型的适配器(230),所述模型能量包括多个模型元素的内部能量和外部 所述至少一个图像驱动模型元素的能量,从而适应所述可变形模型。 通过使自适应系统(200)能够选择性地选择图像驱动的模型元素,本发明的自适应系统允许排除不良适应性的模型元素与图像数据集的交互,从而不被所述图像数据集的拉动和/或推动 图像数据设置到错误的位置。

    STRIPE-BASED IMAGE DATA STORAGE
    39.
    发明申请
    STRIPE-BASED IMAGE DATA STORAGE 审中-公开
    条纹图像数据存储

    公开(公告)号:WO2006016303B1

    公开(公告)日:2006-10-19

    申请号:PCT/IB2005052495

    申请日:2005-07-25

    CPC classification number: G06T1/60

    Abstract: The present invention relates to a way of storing 3D images. The 3D image is composed of a stack of two-dimensional video data subsets represented by arrays of pixel data. Each array of pixel data is partitioned into a plurality of overlapping and adjacent vertical stripes of pixel data having a width at most equal to a cacheline of the memory. The upper most left stripe is stored first and each stripe is stored after the left adjacent stripe. When storing each stripe having multiple rows of pixel data, the upper row is stored first and the first pixel data of each subsequent row of the stripe is stored in a memory location coming after a memory location where the last pixel data of the preceding row in the stripe is stored.

    Abstract translation: 本发明涉及一种存储3D图像的方式。 3D图像由像素数据阵列表示的一堆二维视频数据子集构成。 像素数据的每个阵列被分割成宽度至多等于存储器的缓存线的多个像素数据的重叠且相邻的垂直条带。 最左边的条纹首先被存储并且每个条纹被存储在左边的相邻条纹之后。 当存储具有多行像素数据的每个条带时,首先存储上面的行,并将条带的每个后续行的第一像素数据存储在存储器位置中,存储器位置位于存储器位置之后,其中前一行的最后一个像素数据在 条纹被存储。

    STRIPE-BASED IMAGE DATA STORAGE
    40.
    发明申请
    STRIPE-BASED IMAGE DATA STORAGE 审中-公开
    基于条带的图像数据存储

    公开(公告)号:WO2006016303A3

    公开(公告)日:2006-08-17

    申请号:PCT/IB2005052495

    申请日:2005-07-25

    CPC classification number: G06T1/60

    Abstract: The present invention relates to a way of storing 3D images. The 3D image is composed of a stack of two-dimensional video data subsets represented by arrays of pixel data. Each array of pixel data is partitioned into a plurality of overlapping and adjacent vertical stripes of pixel data having a width at most equal to a cacheline of the memory. The upper most left stripe is stored first and each stripe is stored after the left adjacent stripe. When storing each stripe having multiple rows of pixel data, the upper row is stored first and the first pixel data of each subsequent row of the stripe is stored in a memory location coming after a memory location where the last pixel data of the preceding row in the stripe is stored.

    Abstract translation: 本发明涉及一种存储3D图像的方法。 3D图像由由像素数据阵列表示的二维视频数据子集的堆叠组成。 像素数据的每个阵列被划分为具有最多等于存储器的高速缓存行的宽度的像素数据的多个重叠和相邻垂直条带。 首先存储最左边的条带,并且每个条带存储在左邻近条带之后。 当存储具有多行像素数据的每个条带时,首先存储上一行,并且条带的每个后续行的第一像素数据被存储在存储器位置之后的存储器位置中,其中前一行的最后一个像素数据在 条带被存储。

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