公开(公告)号：US5544283A

公开(公告)日：1996-08-06

申请号：US97637

申请日：1993-07-26

申请人： Arie E. Kaufman ,  Roni Yagel ,  Daniel Cohen-or

发明人： Arie E. Kaufman ,  Roni Yagel ,  Daniel Cohen-or

IPC分类号： G06T15/06 ,  G06T15/40 ,  G06T17/50

CPC分类号： G06T15/06 ,  G06T15/40

摘要： The method and apparatus of the present invention provides real-time reorientation of stored data and real-time visualization for high resolution volumetric datasets from an arbitrary designed viewing direction. The apparatus includes a modularized memory having a plurality of memory modules wherein each memory module includes a plurality of memory storage units capable of storing voxel data therein. The apparatus also includes reorientation unit coupled to each of the plurality of memory modules for simultaneously receiving voxel data from memory storage units of each memory module. The reorientation unit simultaneously provides the voxel data corresponding to a first memory storage unit to a second memory storage unit according to a desired viewing direction. The apparatus further includes fetching unit coupled to each of the plurality of memory modules for simultaneously retrieving voxel data from the plurality of memory modules according to the desired viewing direction and projection unit coupled to the fetching unit. The fetching unit provides the projection unit with voxel data retrieved from the plurality of memory modules. The voxel data retrieved by each projection ray includes a plurality of voxel attributes indicative of the characteristics of the object. The projection unit generates a projection value corresponding to the cumulation of voxel attributes. The projection value is indicative of the opaqueness of the aggregate of voxel attributes for each projection ray. The apparatus includes display unit coupled to the projection unit for displaying the projection value.

摘要翻译： 本发明的方法和装置从任意设计的观察方向提供存储数据的实时重定向和用于高分辨率体数据集的实时可视化。 该装置包括具有多个存储器模块的模块化存储器，其中每个存储器模块包括能够在其中存储体素数据的多个存储器存储单元。 该装置还包括耦合到多个存储器模块中的每一个的重新定向单元，用于同时从每个存储器模块的存储器存储单元接收体元数据。 重新定向单元根据期望的观察方向同时向第二存储器存储单元提供对应于第一存储器存储单元的体素数据。 该装置还包括耦合到多个存储器模块中的每一个的取出单元，用于根据期望的观察方向和耦合到取出单元的投影单元同时从多个存储器模块检索体元数据。 提取单元为投影单元提供从多个存储器模块检索的体素数据。 由每个投影光线检索的体素数据包括指示对象的特征的多个体元属性。 投影单元产生与体元属性的累积对应的投影值。 投影值表示每个投影光线的体素属性的聚集的不透明度。 该装置包括耦合到投影单元的显示单元，用于显示投影值。

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。