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保持特征的网格修补

DOI: 10.11834/jig.20100223

Keywords: 网格重建,网格修补,曲面拟合

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Abstract:

提出了一种恢复缺失尖锐特征的网格修补算法。首先对网格顶点建立自适应的八叉树,采用分段二次多项式对网格空洞周围顶点进行拟合。而在尖锐特征处周围,则采用两个或者多个系数不同的二次多项式函数,分别进行拟合,从而获取原始网格所在曲面的尖锐特征边和角。利用扩展的MarchingCube方法获得空洞处的三角网格面片,并和原始网格模型缝合。最后,对于空洞处的网格面片,进行增强特征处理,消除锯齿状网格,获得清晰的尖锐特征。实验结果表明,该方法达到了预期的良好效果。

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