CAJ | 학술논문

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Marching Cube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.
제출료일충회복결실첨예특정적망격수보산법.수선대망격정점건립자괄응적팔차수,채용분단이차다항식대망격공동주위정점진행의합.이재첨예특정처주위,칙채용량개혹자다개계수불동적이차다항식함수,분별진행의합,종이획취원시망격소재곡면적첨예특정변화각.이용확전적Marching Cube방법획득공동처적삼각망격면편,병화원시망격모형봉합.최후,대우공동처적망격면편,진행증강특정처리,소제거치상망격,획득청석적첨예특정.실험결과표명,해방법체도료예기적량호효과.
A feature-preserving mesh completion algorithm is proposed. Firstly the octree-based subdivision of mesh vertices is created. Piecewise quadratic polynomial functions are used to fit the mesh vertices near the hole. Around the sharp features, two or more quadratic functions with different coefficients are used so as to capture sharp features such as edges or corners. The extended Marching Cube algorithm extracts the triangle mesh patch which is stitched to the hole boundary of the original model to complete the polygon mesh. Finally a feature enhancement process is applied to eliminate the aliasing artifacts to obtain fine sharp features. The results of experimental tests show that excellent hole repairing mesh can be achieved.