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1. 发明申请

US20130106834A1 COMPRESSION OF TEXTURE RENDERED WIRE MESH MODELS 有权
标题翻译：纹理渲染线网格模型的压缩
公开(公告)号：US20130106834A1
公开(公告)日：2013-05-02
申请号：US13287472
申请日：2011-11-02
申请人： IAN CURINGTON
发明人： IAN CURINGTON
IPC分类号： G06T15/00
CPC分类号： G06T9/00
摘要： Spatial errors identifying differences between spatial co-ordinates of vertices of a mesh surface defined by mesh data and corresponding vertices in a mesh surface generated from an encoded representation of the mesh data are determined. Mesh data and texture co-ordinate data associating vertices of a mesh surface with locations in an image space of an image to be rendered onto the mesh surface are then processed to determine mapping between the co-ordinate space of the mesh data and the image space of an image to be rendered onto the mesh surface. Texture co-ordinate data for each vertex is then modified to associate a vertex with a location in image space which differs from the location identified by the unmodified texture co-ordinate data by an amount corresponding to the projection the spatial errors associated with the vertex to the image space.
摘要翻译：确定识别由网格数据定义的网格表面的顶点的空间坐标与从网格数据的编码表示生成的网格表面中的对应顶点之间的差异的空间误差。然后处理将网格表面的顶点与要渲染到网格表面上的图像的图像空间中的位置相关联的网格数据和纹理协调数据，以确定网格数据的坐标空间和图像空间之间的映射要渲染到网格表面上的图像。然后修改每个顶点的纹理坐标数据以将顶点与图像空间中的位置相关联，该位置与由未修改的纹理坐标数据识别的位置不同，该对应于与顶点相关联的空间误差的投影的量图像空间。

2. 发明授权

US10019649B2 Point cloud simplification 有权
公开(公告)号：US10019649B2
公开(公告)日：2018-07-10
申请号：US14577625
申请日：2014-12-19
申请人： VISUAL TECHNOLOGY SERVICES LIMITED
发明人： Ian Curington , Evgeny Panasyuk
IPC分类号： G06K9/00 , G06K9/62 , G06K9/46
CPC分类号： G06K9/6219 , G06K9/00201 , G06K9/469
摘要： Some embodiments are directed to a computer implemented method for simplification of a point cloud including a set of points. The method comprises implementing recursive spatial partitioning of the set of points into a hierarchy of clusters, identifying representative points within each cluster in the hierarchy and, for each representative point, defining a point-pair that consists of or includes the representative point and a representative point of an immediate parent cluster. The method further includes calculating a contraction error metric for each point-pair, and iteratively contracting the point-pair with the lowest contraction error metric, updating remaining point-pairs as a result of the contraction, and revising the contraction error metric of the updated point-pairs accordingly.

3. 发明授权

US09990566B2 Point cloud simplification 有权
公开(公告)号：US09990566B2
公开(公告)日：2018-06-05
申请号：US14577625
申请日：2014-12-19
申请人： VISUAL TECHNOLOGY SERVICES LIMITED
发明人： Ian Curington , Evgeny Panasyuk
IPC分类号： G06K9/00 , G06K9/62 , G06K9/46
摘要： Some embodiments are directed to a computer implemented method for simplification of a point cloud including a set of points. The method comprises implementing recursive spatial partitioning of the set of points into a hierarchy of clusters, identifying representative points within each cluster in the hierarchy and, for each representative point, defining a point-pair that consists of or includes the representative point and a representative point of an immediate parent cluster. The method further includes calculating a contraction error metric for each point-pair, and iteratively contracting the point-pair with the lowest contraction error metric, updating remaining point-pairs as a result of the contraction, and revising the contraction error metric of the updated point-pairs accordingly.

4. 发明授权

US09691006B2 Point cloud simplification 有权
公开(公告)号：US09691006B2
公开(公告)日：2017-06-27
申请号：US14689904
申请日：2015-04-17
申请人： VISUAL TECHNOLOGY SERVICES LIMITED
发明人： Ian Curington
IPC分类号： G06K9/00 , G06K9/62 , G06K9/46
CPC分类号： G06K9/6219 , G06K9/00201 , G06K9/469
摘要： Some embodiments are directed to a method of cloud point simplification that includes implementing recursive spatial partitioning of the set of points into a hierarchy of clusters and, for each cluster, calculating a tangent plane estimate for the points in the cluster and deriving a confidence factor for the calculated tangent plane estimate. The method further includes identifying representative points within each cluster in the hierarchy and, for each representative point, defining a point-pair that consists of the representative point and a representative point of an immediate parent cluster; calculating a contraction error metric for each point-pair that is weighted by the inverse of the confidence factors calculated for the clusters associated with each representative point; and iteratively contracting the point-pair with the lowest contraction error metric, updating remaining point-pairs as a result of the contraction, and revising the contraction error metric of the updated point-pairs accordingly.

5. 发明授权

US09424662B2 Triangle mesh compression 有权
标题翻译：三角网格压缩
公开(公告)号：US09424662B2
公开(公告)日：2016-08-23
申请号：US13878824
申请日：2011-09-27
申请人： Ian Curington , Evgeny Panasyuk
发明人： Ian Curington , Evgeny Panasyuk
IPC分类号： G06T17/00 , G06T9/00 , G06T17/05
CPC分类号： G06T9/001 , G06T17/05
摘要： A computer implemented method of processing elevation mesh data defining a polygon mesh surface to determine an alternative representation of the surface using fewer polygons than in the original representation is disclosed. Initially original elevation mesh data is sub-sampled to generate a low resolution representation of the polygon mesh surface where vertices of polygons correspond to points on a coarser X-Y grid than the original elevation mesh data. Error values indicative of the extent that portions of the surface defined by the low resolution elevation mesh data differ from corresponding portions of the surface defined by the original elevation mesh data are then determined. An alternative representation of the polygon mesh surface is then generated which comprises: low resolution elevation mesh data for the portions of the polygon mesh surface associated with error values less than a threshold value; transition mesh data defining a polygon mesh surface immediately adjacent the perimeter of portions of the surface represented by the low resolution elevation mesh data; and higher resolution elevation mesh data for the remaining portions of the polygon mesh surface.
摘要翻译：公开了一种计算机实现的方法，其处理定义多边形网格表面的高程网格数据，以使用比原始表示中更少的多边形来确定表面的替代表示。最初的原始高程网格数据被子采样以生成多边形网格表面的低分辨率表示，其中多边形的顶点对应于较原始高程网格数据在较粗的X-Y网格上的点。指示由低分辨率海拔网格数据定义的表面的部分与由原始高程网格数据定义的表面的相应部分不同的程度的误差值。然后生成多边形网格表面的替代表示，其包括：用于与小于阈值的误差值相关联的多边形网格表面的部分的低分辨率高度网格数据; 过渡网格数据定义紧邻由低分辨率高度网格数据表示的表面部分的周界的多边形网格表面; 以及用于多边形网格表面的其余部分的较高分辨率的高度网格数据。

6. 发明授权

US08736603B2 Compression of texture rendered wire mesh models 有权
标题翻译：纹理渲染网格模型的压缩
公开(公告)号：US08736603B2
公开(公告)日：2014-05-27
申请号：US13287472
申请日：2011-11-02
申请人： Ian Curington
发明人： Ian Curington
IPC分类号： G06T15/00 , G06T19/00
CPC分类号： G06T9/00
摘要： Spatial errors identifying differences between spatial co-ordinates of vertices of a mesh surface defined by mesh data and corresponding vertices in a mesh surface generated from an encoded representation of the mesh data are determined. Mesh data and texture co-ordinate data associating vertices of a mesh surface with locations in an image space of an image to be rendered onto the mesh surface are then processed to determine mapping between the co-ordinate space of the mesh data and the image space of an image to be rendered onto the mesh surface. Texture co-ordinate data for each vertex is then modified to associate a vertex with a location in image space which differs from the location identified by the unmodified texture co-ordinate data by an amount corresponding to the projection the spatial errors associated with the vertex to the image space.
摘要翻译：确定识别由网格数据定义的网格表面的顶点的空间坐标与从网格数据的编码表示生成的网格表面中的对应顶点之间的差异的空间误差。然后处理将网格表面的顶点与要渲染到网格表面上的图像的图像空间中的位置相关联的网格数据和纹理协调数据，以确定网格数据的坐标空间和图像空间之间的映射要渲染到网格表面上的图像。然后修改每个顶点的纹理坐标数据以将顶点与图像空间中的位置相关联，该位置与由未修改的纹理坐标数据识别的位置不同，该对应于与顶点相关联的空间误差的投影的量图像空间。

7. 发明申请

US20120313927A1 COLOR MESH COMPRESSION 审中-公开
标题翻译：彩色网格压缩
公开(公告)号：US20120313927A1
公开(公告)日：2012-12-13
申请号：US13156920
申请日：2011-06-09
申请人： IAN CURINGTON , PETROV PETR PETROVICH
发明人： IAN CURINGTON , PETROV PETR PETROVICH
IPC分类号： G06T15/04
CPC分类号： G06T9/00 , G06T9/001
摘要： A method of compressing data defining a colored polygonal mesh surface is disclosed. Color data associating points on a polygonal mesh surface is processed to determine a set of representative colors for coloring the polygonal mesh surface. The mesh surface is then divided into a number of sub-meshes each associated with one of the representative set of colors, wherein each of the sub-meshes comprises the portions of the colored polygonal mesh surface associated with colors which are determined to be similar to the representative color associated with the sub-mesh. An alternative representation of the colored polygonal mesh surface is then generated comprising mesh data defining geometry and connectivity of polygonal mesh surfaces corresponding to each of the sub-meshes and color data indicative the representative colors associated with the sub-meshes.
摘要翻译：公开了一种压缩定义彩色多边形网格表面的数据的方法。处理多边形网格表面上的颜色数据关联点，以确定用于着色多边形网格表面的一组代表性颜色。然后将网格表面分成多个子网格，每个子网格与代表性的一组颜色相关联，其中每个子网格包括与颜色相关联的彩色多边形网格表面的被确定为类似于与子网格相关联的代表颜色。然后生成彩色多边形网格表面的替代表示，其包括网格数据，其定义对应于每个子网格的多边形网格表面的几何和连接性以及指示与子网格相关联的代表性颜色的颜色数据。

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