Apparatus and method for real-time volume processing and universal three-dimensional rendering
    3.
    发明授权
    Apparatus and method for real-time volume processing and universal three-dimensional rendering 失效
    用于实时体积处理和通用三维渲染的装置和方法

    公开(公告)号:US07471291B2

    公开(公告)日:2008-12-30

    申请号:US11556993

    申请日:2006-11-06

    IPC分类号: G06T17/00

    CPC分类号: G06T15/08 G06T15/06 G06T15/40

    摘要: An apparatus and method for real-time volume processing and universal three-dimensional rendering. The apparatus includes a plurality of three-dimensional (3D) memory units; at least one pixel bus for providing global horizontal communication; a plurality of rendering pipelines; at least one geometry bus; and a control unit. The apparatus includes a block processor having a circular ray integration pipeline for processing voxel data and ray data. Rays are generally processed in image order thus permitting great flexibility (e.g., perspective projection, global illumination). The block processor includes a splatting unit and a scattering unit. A method for casting shadows and performing global illumination in relation to light sources includes sweeping a two dimensional array of rays through the volume can also be implemented with the apparatus. A method for approximating a perspective projection includes using parallel projection.

    摘要翻译: 用于实时卷处理和通用三维渲染的装置和方法。 该装置包括多个三维(3D)存储器单元; 用于提供全局水平通信的至少一个像素总线; 多个渲染管线; 至少一个几何总线; 和控制单元。 该装置包括具有用于处理体素数据和射线数据的圆形射线集成管线的块处理器。 通常以图像顺序处理光线,从而允许很大的灵活性(例如,透视投影,全局照明)。 块处理器包括分散单元和散射单元。 用于投射阴影和执行与光源相关的全局照明的方法包括扫描通过该体积的二维阵列的射线也可以用该装置来实现。 用于近似透视投影的方法包括使用平行投影。

    Apparatus and method for volume processing and rendering
    4.
    发明授权
    Apparatus and method for volume processing and rendering 失效
    用于体积处理和渲染的装置和方法

    公开(公告)号:US07133041B2

    公开(公告)日:2006-11-07

    申请号:US10204685

    申请日:2001-02-26

    IPC分类号: G06T15/00

    CPC分类号: G06T15/08 G06T15/06 G06T15/40

    摘要: An apparatus and method for real-time volume processing and universal three-dimensional rendering. The apparatus includes a plurality of three-dimensional (3D) memory units; at least one pixel bus for providing global horizontal communication; a plurality of rendering pipelines; at least one geometry bus; and a control unit. The apparatus includes a block processor having a circular ray integration pipeline for processing voxel data and ray data. Rays are generally processed in image order thus permitting great flexibility (e.g., perspective projection, global illumination). The block processor includes a splatting unit and a scattering unit. A method for casting shadows and performing global illumination in relation to light sources includes sweeping a two dimensional array of rays through the volume can also be implemented with the apparatus. A method for approximating a perspective projection includes using parallel projection.

    摘要翻译: 用于实时卷处理和通用三维渲染的装置和方法。 该装置包括多个三维(3D)存储器单元; 用于提供全局水平通信的至少一个像素总线; 多个渲染管线; 至少一个几何总线; 和控制单元。 该装置包括具有用于处理体素数据和射线数据的圆形射线集成管线的块处理器。 通常以图像顺序处理光线,从而允许很大的灵活性(例如,透视投影,全局照明)。 块处理器包括分散单元和散射单元。 用于投射阴影和执行与光源相关的全局照明的方法包括扫描通过该体积的二维阵列的射线也可以用该装置来实现。 用于近似透视投影的方法包括使用平行投影。

    Apparatus and Method for Real-Time Volume Processing and Universal Three-Dimensional Rendering
    5.
    发明申请
    Apparatus and Method for Real-Time Volume Processing and Universal Three-Dimensional Rendering 失效
    用于实时卷处理和通用三维渲染的装置和方法

    公开(公告)号:US20070206008A1

    公开(公告)日:2007-09-06

    申请号:US11556993

    申请日:2006-11-06

    IPC分类号: G06T15/20

    CPC分类号: G06T15/08 G06T15/06 G06T15/40

    摘要: An apparatus and method for real-time volume processing and universal three-dimensional rendering. The apparatus includes a plurality of three-dimensional (3D) memory units; at least one pixel bus for providing global horizontal communication; a plurality of rendering pipelines; at least one geometry bus; and a control unit. The apparatus includes a block processor having a circular ray integration pipeline for processing voxel data and ray data. Rays are generally processed in image order thus permitting great flexibility (e.g., perspective projection, global illumination). The block processor includes a splatting unit and a scattering unit. A method for casting shadows and performing global illumination in relation to light sources includes sweeping a two dimensional array of rays through the volume can also be implemented with the apparatus. A method for approximating a perspective projection includes using parallel projection.

    摘要翻译: 用于实时卷处理和通用三维渲染的装置和方法。 该装置包括多个三维(3D)存储器单元; 用于提供全局水平通信的至少一个像素总线; 多个渲染管线; 至少一个几何总线; 和控制单元。 该装置包括具有用于处理体素数据和射线数据的圆形射线集成管线的块处理器。 通常以图像顺序处理光线,从而允许很大的灵活性(例如,透视投影,全局照明)。 块处理器包括分散单元和散射单元。 用于投射阴影和执行与光源相关的全局照明的方法包括扫描通过该体积的二维阵列的射线也可以用该装置来实现。 用于近似透视投影的方法包括使用平行投影。

    Apparatus and method for real-time volume processing and universal 3D rendering
    6.
    发明授权
    Apparatus and method for real-time volume processing and universal 3D rendering 失效
    用于实时音量处理和通用3D渲染的装置和方法

    公开(公告)号:US06674430B1

    公开(公告)日:2004-01-06

    申请号:US09354876

    申请日:1999-07-16

    IPC分类号: G06T1700

    CPC分类号: G06T15/005 G06T15/08

    摘要: An apparatus and method for real-time volume processing and universal three-dimensional rendering. The apparatus includes a plurality of three-dimensional (3D) memory units; at least one pixel bus for providing global horizontal communication; a plurality of rendering pipelines; at least one geometry bus; and a control unit. The plurality of rendering pipelines each preferably include hardware for interpolation, shading, FIFO buffering, communication and table lookups. The apparatus of the present invention may be coupled to a geometry pipeline for mixing surfaces, images and volumes together in a single image. A method for performing volumetric ray casting of a 3D volume includes the steps of calculating a distance along a major projection axis from a predefined viewpoint; dividing the volume into a plurality of consecutive regions having exponentially increasing bounds; casting a plurality of rays from the viewpoint through the volume; either merging two or more rays or splitting one or more rays at the region boundaries; and repeating the ray casting and merging/splitting steps until the entire volume has been processed. The apparatus and methods of the present invention achieve true real-time performance for high-resolution volume rendering, mixing surfaces and volumes in a single image, and accelerating other imaging operations, including texture mapping and image-based rendering.

    摘要翻译: 用于实时卷处理和通用三维渲染的装置和方法。 该装置包括多个三维(3D)存储器单元; 用于提供全局水平通信的至少一个像素总线; 多个渲染管线; 至少一个几何总线; 和控制单元。 多个渲染管线各自优选地包括用于内插,着色,FIFO缓冲,通信和表查找的硬件。 本发明的装置可以耦合到几何管线,用于将表面,图像和体积一起在单个图像中混合。 用于执行3D体积的体积射线投射的方法包括以下步骤:从预定视点计算沿主投影轴的距离; 将体积分成具有指数增加界限的多个连续区域; 从视点投射多个光线通过该体积; 合并两个或更多个射线或在区域边界处分裂一个或多个射线; 并重复射线投射和合并/分割步骤直到整个体积被处理。 本发明的装置和方法实现了用于高分辨率体绘制,单个图像中的混合曲面和体积的真实实时性能,并且加速了包括纹理映射和基于图像的渲染的其他成像操作。

    Systems and Methods for Automated Segmentation, Visualization and Analysis of Medical Images
    9.
    发明申请
    Systems and Methods for Automated Segmentation, Visualization and Analysis of Medical Images 审中-公开
    医学图像自动分割,可视化和分析的系统和方法

    公开(公告)号:US20070276214A1

    公开(公告)日:2007-11-29

    申请号:US10580763

    申请日:2004-11-26

    IPC分类号: A61B5/00

    摘要: An imaging system for automated segmentation and visualization of medical images (100) includes an image processing module (107) for automatically processing image data using a set of directives (109) to identify a target object in the image data and process the image data according to a specified protocol, a rendering module (105) for automatically generating one or more images of the target object based on one or more of the directives (109) and a digital archive (110) for storing the one or more generated images. The image data may be DICOM-formatted image data (103), wherein the imaging processing module (107) extracts and processes meta-data in DICOM fields of the image data to identify the target object. The image processing module (107) directs a segmentation module (108) to segment the target object using processing parameters specified by one or more of the directives (109).

    摘要翻译: 一种用于医疗图像(100)的自动分割和可视化的成像系统包括图像处理模块(107),用于使用一组指令(109)自动处理图像数据,以识别图像数据中的目标对象,并根据 根据指定协议,基于所述指令(109)中的一个或多个自动生成所述目标对象的一个​​或多个图像的再现模块(105)和用于存储所述一个或多个所生成的图像的数字存档(110)。 图像数据可以是DICOM格式的图像数据(103),其中成像处理模块(107)提取并处理图像数据的DICOM字段中的元数据以识别目标对象。 图像处理模块(107)引导分割模块(108)使用由一个或多个指令(109)指定的处理参数来分割目标对象。

    Systems and methods for interactive navigation and visualization of medical images
    10.
    发明申请
    Systems and methods for interactive navigation and visualization of medical images 审中-公开
    用于医学图像的互动导航和可视化的系统和方法

    公开(公告)号:US20090063118A1

    公开(公告)日:2009-03-05

    申请号:US11664942

    申请日:2005-10-08

    IPC分类号: G06G7/60

    摘要: Systems and methods for visualization and interactive navigation of virtual images of internal organs are provided to assist in medical diagnosis and evaluation of internal organs. In one aspect, an image data processing system (105) includes an image rendering system (111) for rendering multi-dimensional views of an imaged object from an image dataset (106) of the imaged object, a graphical display system (112) for displaying an image of a rendered view according to specified visualization parameters, an interactive navigation system (107) which monitors a user's navigation through a virtual image space of a displayed image and which provides user navigation assistance in the form of tactile feedback by a navigation control unit (115) operated by the user, upon an occurrence of a predetermined navigation event.

    摘要翻译: 提供内部虚拟图像可视化和互动导航的系统和方法,以协助内部器官的医学诊断和评估。 在一个方面,图像数据处理系统(105)包括用于从成像对象的图像数据集(106)渲染成像对象的多维视图的图像渲染系统(111),用于 根据指定的可视化参数显示呈现的视图的图像;交互式导航系统(107),其通过所显示的图像的虚拟图像空间监视用户的导航,并且通过导航控制以触觉反馈的形式提供用户导航辅助 在预定的导航事件发生时由用户操作的单元(115)。