公开(公告)号：US20140362082A1

公开(公告)日：2014-12-11

申请号：US13100225

申请日：2011-05-03

申请人： Joshua SCHPOK ,  Tilman Reinhardt

发明人： Joshua SCHPOK ,  Tilman Reinhardt

IPC分类号： G06T15/20

CPC分类号： G06T17/05

摘要： A computer implemented system and method is disclosed for generating realistic three-dimensional models of roadway overpass structures. An example system comprises a segmentation module configured to identify roadway overpass regions, based on existing map data containing locations of roadway intersections, aerial imagery, and a digital surface model (DSM). A roadway overpass region is assumed to have at least a first and second road segment. A DSM provides an elevation z for each two-dimensional point (x, y). The segmentation module identifies the upper and lower roadway sections of an overpass structure and an extraction module generates a three-dimensional model of the overpass based on the segmented regions identified by the segmentation module. The extraction module combines aerial images with 3D computer models of overpass structures to generate a realistic 3D rendering of surface topography of the earth including roadway overpass structures.

摘要翻译： 公开了一种用于生成道路立交桥结构的逼真的三维模型的计算机实现的系统和方法。 示例性系统包括：分配模块，其被配置为基于包含道路交叉点，航空图像和数字表面模型（DSM）的位置的现有地图数据来识别道路跨越区域。 假设道路天桥区域至少具有第一和第二路段。 DSM为每个二维点（x，y）提供高程z。 分割模块识别立交桥结构的上部和下部道路段，并且提取模块基于由分割模块识别的分段区域生成立交桥的三维模型。 提取模块将航空图像与立交桥结构的3D计算机模型相结合，以产生包括道路立交桥结构在内的地球表面形貌的逼真3D渲染。

公开(公告)号：US07724258B2

公开(公告)日：2010-05-25

申请号：US11172098

申请日：2005-06-30

申请人： David S. Ebert ,  Joshua Schpok

发明人： David S. Ebert ,  Joshua Schpok

IPC分类号： G06T13/00

CPC分类号： G06T13/60

摘要： 3D graphics animation is increasingly used in movies and virtual reality computer games to produce realistic visual simulations of physical and natural phenomena. The animation of diffuse liquids such as gases is an indispensable component in such special effects. The present system and methods utilize physically-based and more intuitive procedurally-based simulation techniques to simulate and render natural phenomena in computer graphics. The present invention facilitates user interaction in order to generate a variety of gas effects, for example, waves within water, plumes within hot gas, and flames within fire. Improved user interaction is achieved by improving rendering performance and introducing a new method of high-level control for Eulerian simulations.

摘要翻译： 3D图形动画越来越多地用于电影和虚拟现实电脑游戏中，以产生物理和自然现象的逼真的视觉模拟。 漫射液体如气体的动画是这种特殊效果中不可或缺的组成部分。 本系统和方法利用基于物理和更直观的基于程序的仿真技术来模拟和渲染计算机图形中的自然现象。 本发明便于用户交互以产生各种气体效应，例如水中的波浪，热气中的羽流和火中的火焰。 改进的用户交互是通过改进渲染性能和为欧拉模拟引入一种新的高级别控制方法来实现的。

公开(公告)号：US08520940B1

公开(公告)日：2013-08-27

申请号：US13103585

申请日：2011-05-09

申请人： Joshua Schpok ,  Jeremiah Childs ,  Tilman Reinhardt

发明人： Joshua Schpok ,  Jeremiah Childs ,  Tilman Reinhardt

IPC分类号： G06K9/00

CPC分类号： G06K9/0063 ,  G06T7/11 ,  G06T7/174 ,  G06T2207/10032 ,  G06T2207/30184

摘要： A computer implemented system and method are disclosed for segmenting aerial and satellite imagery according to pre-defined regions contained in the images such as city blocks. An example system comprises a feature mask generation module, a partition generation module, one or more color map generation modules, a color map reassignment module, and a bounding box generation module. The system and method take aerial image data and vector map data as input and generate a composite color map for a geographic region of interest, wherein the color map comprises a plurality of pre-defined regions in which each pre-defined region can be defined by enclosing road segments. The disclosed system and method provide a convenient and logical way of segmenting large data sets of aerial imagery for use in other applications such as the construction of computer models of surface features of the Earth.

摘要翻译： 公开了一种计算机实现的系统和方法，用于根据诸如城市街区的图像中包含的预定义区域来分割空中和卫星图像。 示例性系统包括特征掩码生成模块，分区生成模块，一个或多个颜色映射生成模块，颜色映射重新分配模块和边界框生成模块。 该系统和方法将空中图像数据和矢量地图数据作为输入，并为感兴趣的地理区域生成复合彩色图，其中彩色图包括多个预定义区域，其中每个预定义区域可以由 封闭路段。 所公开的系统和方法提供了一种方便和合乎逻辑的方法来分割大型数据集的航空图像，以用于其他应用，例如构建地球表面特征的计算机模型。

公开(公告)号：US20060087509A1

公开(公告)日：2006-04-27

申请号：US11172098

申请日：2005-06-30

申请人： David Ebert ,  Joshua Schpok

发明人： David Ebert ,  Joshua Schpok

IPC分类号： G06T15/70 ,  G06T13/00

CPC分类号： G06T13/60

摘要： 3D graphics animation is increasingly used in movies and virtual reality computer games to produce realistic visual simulations of physical and natural phenomena. The animation of diffuse liquids such as gases is an indispensable component in such special effects. The present system and methods utilize physically-based and more intuitive procedurally-based simulation techniques to simulate and render natural phenomena in computer graphics. The present invention facilitates user interaction in order to generate a variety of gas effects, for example, waves within water, plumes within hot gas, and flames within fire. Improved user interaction is achieved by improving rendering performance and introducing a new method of high-level control for Eulerian simulations.

摘要翻译： 3D图形动画越来越多地用于电影和虚拟现实电脑游戏中，以产生物理和自然现象的逼真的视觉模拟。 漫射液体如气体的动画是这种特殊效果中不可或缺的组成部分。 本系统和方法利用基于物理和更直观的基于程序的仿真技术来模拟和渲染计算机图形中的自然现象。 本发明便于用户交互以产生各种气体效应，例如水中的波浪，热气中的羽流和火中的火焰。 改进的用户交互是通过改进渲染性能和为欧拉模拟引入一种新的高级别控制方法来实现的。