中文摘要：

针对三维破损模型, 提出一种能够有效恢复模型孔洞区域细节特征的曲面修复方法. 首先检测并匹配破损模型孔洞区域周边的特征线; 然后利用动态规划方法构建模型孔洞区域的基曲面; 再根据匹配特征线信息, 利用区域分层收缩策略从孔洞区域边界开始向区域中心逐层添加曲面细节; 最后引进带特征线约束的双拉普拉斯系统恢复孔洞区域的显著几何特征. 实验结果表明, 该方法能够有效地修补破损模型孔洞区域并恢复其曲面细节.

英文摘要：

For repairing the incomplete complex 3D models, a novel detail-preserving hole-filling method ispresented in this paper which can recover the salient geometric details of the filled region. Firstly, we detectand match the feature lines in the vicinity of holes. The base surface of the missing region can be constructedusing a dynamic programming scheme. Then, a layered shrinkage strategy of triangle refinement and ameasurement of the refining order are presented to recover the geometric details from the boundary to the centerregion of the holes. Finally, a bi-Laplacian system with feature lines constraints is adopted to smooth theboundary of holes and recover the local salient features in the filled region. Experimental results demonstratethat our hole-filling algorithm can capture the global structure and recover the geometric details of the surfaceeffectively and robustly.