...都小于某一阈值． Alexa算法主要目的是对分布稀疏的点云加密采样（upsampling），用于高质量地绘制点集曲面（point set surface）¨41．但该算法并没有对原始点云作调整，只是不断加入新点．所以，若原点云的某一局部密度很大，要得到 均匀点云，则需将其他部分...
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该方法通过二次曲面求管线表面轮廓方程进而求得管线的型值点集。
With this method, shape points were calculated by surface outline equation got from quadratic surface.
在定位的基础上拟合脊柱中心线并建立测点集，应用MC算法输出三角网格模型，重建出脊柱中心曲面。
On the basis of the spine and fitting the centerline of spine, MC algorithm is used to output triangular mesh model to reconstruct the spine center surface.
提出了一种基于曲面局平特性的，以散乱点集及其密度指标作为输入，以三角形分片线性曲面作为输出的拓扑重建算法。
An algorithm for topology reconstruction is promoted that takes as input an unorganized set of points with known density and carries out as output simplicial surfaces.
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