A systematic scheme is proposed to automatically extract geometric surface features from a point cloud composed of a set of unorganized three-dimensional coordinate points by data segmentation.

给出了数据分块系统性方案，即从仅含有三维坐标的散乱的点云中自动提取几何曲面特性。

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The whole feature parameters and local feature of spacial geometric features of road surface are put forward.

提出了表征路面表面空间几何特征的整体特征参数和局部特征参数。

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Surface parametrization is one of important problems in computer graphics and computer aided geometric design.

曲面参数化是计算机图形学和计算机辅助几何设计中一个非常重要的问题。

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This is a regular geometric pattern etched onto the surface of the tungsten.

ECONOMIST: Solar power

The researchers in this study examined the geometric structure and behaviour of one of the rotavirus's surface proteins, called VP4, which plays a key role in binding on to the surface of a target cell, and breaking through its membrane.

BBC: NEWS | Health | Diarrhoea vaccine 'a step closer'

It recommended using geometric lines of latitude and longitude to convey a three-dimensional Earth on a two-dimensional surface, and it included the co-ordinates of over 8, 000 locations in the ancient world.

ECONOMIST: There is no such thing as an objective map