基于点云数据的NURBS曲面重建研究

摘要:

提出一种基于点云数据的NURBS曲面重建方法, 针对数据点的分布不均匀性,进行非均匀B样条曲线控制点的反算, 通过累积弦长法构造非均匀节点矢量,保证了曲面的插值精度和曲面重建的质量。

关键词:非均匀有理B样条;曲面重建;累积弦长

Abstract:

The NURBS surface reconstruction from point cloud data is a key technology of reverse engineering. A method of surface reconstruct from point data was presented. With non-uniform data points, a reverse algorithm for non-uniform B-spline control point and a method of accumulating chord length were put forward to create non-uniform knots vector and guarantee the precision of the surface and quality of the surface reconstruction.

Key words:非均匀有理B样条;曲面重建;累积弦长