公开(公告)号：WO2013128264A2

公开(公告)日：2013-09-06

申请号：PCT/IB2013/000328

申请日：2013-02-26

Applicant: TRIMBLE A.B.

Inventor： TREMBLAY, Guillaume ,  DAVID, Guillaume ,  KHENG, Samnang

IPC: G06F17/30

CPC classification number: G06F17/3007 ,  G06F17/30091 ,  G06F17/30126 ,  G06F17/30153 ,  G06F17/3028 ,  G06T15/10 ,  G06T2215/16

Abstract: Methods and apparatus are provided for processing of data representing points in space wherein each is represented by components defining its position in a coordinate system and at least one parameter. For each point, the data are separated into a layer per component, and each component is assigned to a cell of a two-dimensional grid of cells such that corresponding cells of multiple layers contain the components of a point. A component of a point is retrieved by reference to a grid position corresponding to the point and to a layer corresponding to the component. Each layer is segmented into patches of cells such that a component of a point can be retrieved by reference to a grid position of a patch within a layer and to a grid position of a cell within a patch. A layer is compressed using an associated codec.

Abstract translation: 提供了用于处理表示空间中的点的数据的方法和装置，其中每个由在坐标系中定义其位置的分量和至少一个参数表示。 对于每个点，数据被分成每个组件的层，并且每个组件被分配给单元的二维网格的单元格，使得多个层的相应单元格包含点的组件。 通过参考对应于该点的网格位置和对应于该组件的层来检索点的分量。 每个层被分割成细胞块，使得可以通过参考层内的贴片的网格位置和贴片内的细胞的网格位置来检索点的分量。 使用关联的编解码器压缩图层。