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    Method and apparatus for storing, accessing, and processing voxel-based data
    1.
    发明授权
    Method and apparatus for storing, accessing, and processing voxel-based data 失效
    用于存储，访问和处理基于体素数据的方法和装置

    公开(公告)号：US4985856A

    公开(公告)日：1991-01-15

    申请号：US269567

    申请日：1988-11-10

    申请人： Arie E. Kaufman ,  Reuven Bakalash

    发明人： Arie E. Kaufman ,  Reuven Bakalash

    IPC分类号： G06T15/00 ,  G06T1/60

    CPC分类号： G06T1/60

    摘要： A method and apparatus for storing to and accessing from a memory device, one or more voxels of a beam disposed along one or more of a plurality of storage/retrieval directions of a 3-D matrix array in 3-D discrete voxel space. Voxels are stored into memory space by mapping the voxels along one of the plurality of storage/retrieval directions, into a plurality of independently addressable memory modules in memory storage space. Each memory module is indexed by a memory module index and has internal memory cell addresses. The mapping is carried out in accordance with a linear skewing function which expressed in terms of x, y, and z coordinate directions and integer n. The voxels can be retrieved along one or more of a plurality of storage/retrieval directions by de-mapping one or more of the voxels from the memory storage space into 3-D voxel space using spacial parameters and integer n. The demapping operations of the present method are also used in order to determine the voxel depth measures of voxels along one of the storage/retrieval directions.

    摘要翻译： 一种用于存储和存储存储器件的方法和装置，沿着三维离散体素空间中的三维矩阵阵列的多个存储/检索方向中的一个或多个设置的光束的一个或多个体素。 通过将沿着多个存储/检索方向之一的体元映射到存储器存储空间中的多个可独立寻址的存储器模块中，将体素存储到存储器空间中。 每个存储器模块由存储器模块索引索引并具有内部存储单元地址。 根据以x，y和z坐标方向表示的线性偏移函数和整数n进行映射。 通过使用空间参数和整数n将一个或多个体素从存储器存储空间解映射成3-D体素空间，可以沿着多个存储/检索方向中的一个或多个来检索体素。 还使用本方法的解映射操作来确定沿着存储/检索方向之一的体素的体素深度测量。

    Method of converting continuous three-dimensional geometrical representations into discrete three-dimensional voxel-based representations within a three-dimensional voxel-based system
    2.
    发明授权
    Method of converting continuous three-dimensional geometrical representations into discrete three-dimensional voxel-based representations within a three-dimensional voxel-based system 失效
    将连续三维几何表示转换为基于立体体素体系的离散三维体素表示的方法

    公开(公告)号：US5038302A

    公开(公告)日：1991-08-06

    申请号：US224545

    申请日：1988-07-26

    申请人： Arie E. Kaufman

    发明人： Arie E. Kaufman

    IPC分类号： G06T17/00

    CPC分类号： G06T17/005

    摘要： Method of converting continuous 3-D geometrical representations into a discrete set of voxels in discrete 3-D voxel space. In one embodiment, a method is provided for converting a continuous 3-D straight line segment into a discrete set of voxels connected together in discrete 3-D voxel space. In another embodiment, a method is provided for converting a continuous 3-D parametric polynomial curve segment into a discrete set of voxels connected together in discrete 3-D voxel space. In an alternative embodiment, a method is provided for converting a continuous 3-D parametric polynomial surface patch into a discrete set of voxels connected together in discrete 3-D voxel space. Yet in another embodiment of the present invention, a method is provided for converting a continuous 3-D parametric polynomial volume element into a discrete set of voxels connected together in discrete 3-D voxel space. The method of the present invention is incremental in nature and uses all integer arithmetic. The method of the present invention is also characterized by symmetrical decisional process loops using substantially the same decisional process logic in each of the x, y and z coordinate directions, and thus is capable of generating discrete sets of voxels having a variety of connectivities.

    摘要翻译： 将连续3-D几何表示转换为离散的三维体素空间中的离散体素集的方法。 在一个实施例中，提供了一种用于将连续的3-D直线段转换成在离散的3-D体素空间中连接在一起的离散体素集的方法。 在另一个实施例中，提供了一种用于将连续3-D参数多项式曲线段转换成在离散的3-D体素空间中连接在一起的离散体素集的方法。 在替代实施例中，提供了一种用于将连续3-D参数多项式表面贴片转换成在离散的3-D体素空间中连接在一起的离散体素集的方法。 在本发明的另一个实施例中，提供了一种用于将连续的3-D参数多项式体积元素转换为在离散的3-D体素空间中连接在一起的体素的离散集合的方法。 本发明的方法本质上是递增的并且使用所有整数运算。 本发明的方法的特征还在于使用在x，y和z坐标方向中的每一个中使用基本上相同的决定性过程逻辑的对称决策过程循环，因此能够产生具有各种连接性的离散体素集。

    System and method for prostate visualization and cancer detection
    3.
    发明授权
    System and method for prostate visualization and cancer detection 有权
    前列腺可视化和癌症检测的系统和方法

    公开(公告)号：US08995736B2

    公开(公告)日：2015-03-31

    申请号：US13574438

    申请日：2011-01-24

    申请人： Arie E. Kaufman ,  Joseph Marino

    发明人： Arie E. Kaufman ,  Joseph Marino

    IPC分类号： G06K9/00 ,  G06T7/00 ,  C12Q1/68 ,  A61B5/00

    CPC分类号： G06T7/0014 ,  G06T2207/10088 ,  G06T2207/30081

    摘要： A method, system, and computer-readable medium for detecting a disease of a prostate. Exemplary embodiments of the present disclosure can include receiving an image dataset acquired with at least one acquisition mode; segmenting a region of interest including the prostate from the dataset; applying conformal mapping to map the region of interest to a canonical shape; generating a 3D visualization of the prostate using the canonically mapped dataset; and applying computer aided detection (CAD) to the canonically mapped volume to detect a region of disease of the organ.

    摘要翻译： 用于检测前列腺疾病的方法，系统和计算机可读介质。 本公开的示例性实施例可以包括接收用至少一个获取模式获取的图像数据集; 从数据集分割包括前列腺的兴趣区域; 应用保形映射将感兴趣区域映射到规范形状; 使用规范映射的数据集生成前列腺的3D可视化; 并将计算机辅助检测（CAD）应用于规范映射的体积以检测器官的疾病区域。

    Registration of scanning data acquired from different patient positions
    5.
    发明授权
    Registration of scanning data acquired from different patient positions 有权
    注册从不同病人位置获得的扫描数据

    公开(公告)号：US07372988B2

    公开(公告)日：2008-05-13

    申请号：US11273430

    申请日：2005-11-14

    申请人： Suzanne Yoakum-Stover ,  Arie E. Kaufman ,  Kevin Kreeger

    发明人： Suzanne Yoakum-Stover ,  Arie E. Kaufman ,  Kevin Kreeger

    IPC分类号： G06K9/00

    CPC分类号： G06T7/0012 ,  G06T7/33 ,  G06T7/38 ,  G06T7/60 ,  G06T15/08 ,  G06T2200/04 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/20044 ,  G06T2207/30004 ,  G06T2207/30028 ,  Y10S128/92

    摘要： A system and method are provided for generating a three-dimensional visualization image of an object such as an organ using volume visualization techniques and exploring the image using a guided navigation system that allows the operator to travel along a flight path and to adjust the view to a particular portion of the image of interest in order, for example, to identify polyps, cysts or other abnormal features in the visualized organ; where imaging data sets are acquired using conventional two-dimensional scans of the object in both a supine and prone orientation, and correspondence between the respective data sets is determined to permit jumping from one visualization orientation to the other while remaining at the same virtual location within the organ.

    摘要翻译： 提供了一种用于使用体积可视化技术来生成诸如器官的对象的三维可视化图像的系统和方法，并且使用允许操作者沿着飞行路径行进并且将视图调整到的视图来引导图像 感兴趣的图像的特定部分，以便例如识别可视化器官中的息肉，囊肿或其他异常特征; 其中成像数据集是使用在仰卧位和倾向取向的对象的常规二维扫描来获取的，并且各个数据集之间的对应被确定为允许从一个可视化方向跳到另一个，同时保持在相同的虚拟位置 器官。

    Apparatus and method for real-time volume visualization
    7.
    发明授权
    Apparatus and method for real-time volume visualization 失效
    用于实时体积可视化的装置和方法

    公开(公告)号：US5594842A

    公开(公告)日：1997-01-14

    申请号：US301205

    申请日：1994-09-06

    申请人： Arie E. Kaufman ,  Hanspeter Pfister

    发明人： Arie E. Kaufman ,  Hanspeter Pfister

    IPC分类号： G06T15/00 ,  G06T17/00

    CPC分类号： G06T15/005

    摘要： A method and apparatus for providing real-time processing of voxels and real-time volume visualization of objects and scenes in a highly parallel and pipelined manner using a three dimensional (3-D) skewed memory, a modular fast bus, two dimensional (2-D) skewed buffers, 3-D interpolation and shading of data points, and a ray projection cone. The method and apparatus permit investigation and viewing of real-time static (3-D) and dynamic (4-D) high resolution volumetric data sets such as those found in medical imaging, biology, non-destructive quality assurance, scientific visualization, computer aided design (CAD), flight simulation, realistic graphics and the like. The method and apparatus implement ray-casting, a powerful volume rendering technique. Viewing rays are cast from the viewing position into a cubic frame buffer. At evenly spaced sample points along each viewing ray, the data is tri-linearly interpolated using values of surrounding voxels. Central differences of voxels around the sample points yield a gradient which is used as a surface normal approximation. Using the gradient and the interpolated sample values, a local shading model is applied and a sample opacity is assigned. Finally, ray samples along the ray are composited into pixel values and provided to a display device to produce an image.

    摘要翻译： 一种使用三维（3-D）偏移存储器，模块化快速总线，二维（2）的以高度并行和流水线的方式提供体素的体
    现象处理和物体和场景的实时容积可视化的方法和装置 -D）倾斜缓冲器，数据点的3-D内插和阴影，以及射线投影锥。 该方法和装置允许调查和观察实时静态（3-D）和动态（4-D）高分辨率体积数据集，例如在医学成像，生物学，非破坏性质量保证，科学可视化，计算机 辅助设计（CAD），飞行模拟，逼真的图形等。 该方法和设备实现射线投射，强大的体积渲染技术。 观看光线从观看位置投射到立方体帧缓冲区中。 在沿着每个观察射线的均匀间隔的采样点处，使用周围体素的值对数据进行三线性内插。 样本点周围体素的中心差异产生一个梯度，用作表面法线近似。 使用渐变和内插样本值，应用局部阴影模型，并分配样本不透明度。 最后，将沿着射线的射线样本合成为像素值，并提供给显示装置以产生图像。

    SYSTEM AND METHOD FOR COMPUTER AIDED POLYP DETECTION
    8.
    发明申请
    SYSTEM AND METHOD FOR COMPUTER AIDED POLYP DETECTION 有权
    计算机辅助聚合物检测系统和方法

    公开(公告)号：US20100215226A1

    公开(公告)日：2010-08-26

    申请号：US11993180

    申请日：2006-06-21

    申请人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

    发明人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

    IPC分类号： G06K9/00 ,  G06F3/01

    CPC分类号： G06K9/342 ,  G06K2209/053 ,  G06T3/0037 ,  G06T7/0012 ,  G06T15/08 ,  G06T2207/30028

    摘要： In the present methods, the automatic detection of polyps is converted into a 2D pattern recognition problem using conformal mapping and direct volume rendering. The colon surface is first segmented and extracted from the CT data set of the abdomen, which is then mapped to a 2D plane using conformal mapping. Ray casting is used to determine sub-surface density values and the flattened image is rendered using a volume rendering technique with a translucent electronic biopsy transfer function. Polyp candidates are detected by a clustering method which identifies regions of elevated sub-surface density. The potential for false positives is reduced by analyzing the volumetric shape and texture features of the polyp candidate regions.

    摘要翻译： 在本方法中，使用保形映射和直接体绘制，将息肉的自动检测转换为2D模式识别问题。 首先将结肠表面分割并从腹部的CT数据集中提取出来，然后使用保形图映射到2D平面。 Ray铸造用于确定亚表面密度值，并且使用具有半透明电子活检传递函数的体绘制技术来渲染平坦化图像。 通过聚类方法检测Polyp候选物，其识别升高的亚表面密度的区域。 通过分析息肉候选区域的体积形状和纹理特征来减少假阳性的潜力。