公开(公告)号：US08848983B1

公开(公告)日：2014-09-30

申请号：US13484996

申请日：2012-05-31

申请人： Brian Edmond Brewington ,  Mark A. Limber ,  Igor V. Guskov ,  Peter Hamel ,  Kong M. Cheung ,  Morten Just Petersen

发明人： Brian Edmond Brewington ,  Mark A. Limber ,  Igor V. Guskov ,  Peter Hamel ,  Kong M. Cheung ,  Morten Just Petersen

IPC分类号： G06K9/00 ,  H04N7/18

CPC分类号： G06F17/30241 ,  G06T17/05

摘要： Systems and methods for ranking geographic features in a geographic information system are provided. In particular, geographic features can be assigned ranking scores based on characteristics of viewsheds associated with the geographic features. In particular, characteristics of a viewshed associated with a geographic feature can be analyzed to assess the visibility of the geographic feature. A ranking score can be assigned to the geographic feature based on the characteristics of the viewshed. The ranking score can be used prioritize information in a geographic information system.

摘要翻译： 提供了用于对地理信息系统中的地理特征进行排序的系统和方法。 特别地，可以基于与地理特征相关联的视域的特征来分配地理特征。 特别地，可以分析与地理特征相关联的视角的特征以评估地理特征的可见性。 可以根据视域的特征将排名得分分配给地理要素。 可以在地理信息系统中使用排名得分优先化信息。

公开(公告)号：US08830235B1

公开(公告)日：2014-09-09

申请号：US09395246

申请日：1999-09-13

申请人： Igor V. Guskov ,  Peter Schröder ,  Wim Sweldens

发明人： Igor V. Guskov ,  Peter Schröder ,  Wim Sweldens

IPC分类号： G06T17/20

CPC分类号： G06T17/205 ,  G06T2210/36

摘要： An irregular connectivity mesh representative of a surface having an arbitrary topology is processed using a non-uniform relaxation procedure. The non-uniform relaxation procedure minimizes differences between vectors normal to faces of pairs of triangles having a common edge and located within a designated neighborhood of a given vertex. The relaxation procedure may be used to construct subdivision and pyramid algorithms for performing processing operations such as upsampling, downsampling and filtering on irregular connectivity meshes. The signal processing algorithms may be utilized in applications such as smoothing, enhancement, editing, texture mapping and compression.

摘要翻译： 使用非均匀松弛过程来处理代表具有任意拓扑的表面的不规则连接网格。 非均匀弛豫过程使得与具有共同边缘并且位于给定顶点的指定邻域内的三角形对的面正交的向量之间的差异最小化。 松弛过程可用于构建细分和金字塔算法，用于执行诸如上采样，下采样和对不规则连接网格进行过滤的处理操作。 信号处理算法可以用于诸如平滑，增强，编辑，纹理映射和压缩之类的应用中。