保持属性特征的模型简化算法  

Algorithm for mesh simplification with attribute feature

作　　者：殷宏[1] 许继恒[1] 张睿[1] 綦秀利[1] 孙小波[1] 

机构地区：[1]解放军理工大学工程兵工程学院,南京210007

出　　处：《计算机应用研究》2009年第10期3632-3634,3638,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(70371039)

摘　　要：为较好保持模型的拓扑结构和属性特征,采用基于半边折叠简化思想对模型进行了带属性简化算法的研究。算法考虑了几何误差度量算子的三个因子:折叠边的欧氏距离、折叠边二面角和顶点到星型邻域平面的距离;引入模型属性特征权重值,将几何误差和属性误差加权作为总体误差进行简化,并对简化质量进行了合法性检查。实验证明,算法在保持模型几何和属性特征方面有效。To preserve the topology structure and attribute features of the model, this paper focused on the simplification algorithm with attribute feature based on half-edge collapse method. This algorithm referred three factors of geometric error metrics, including the length and dihedral angle of the collapse edge, the distance between vertex and adjacent plane. By introducing the weight of attribute feature, simplified the total error with combining geometric errors and attribute errors, and examined the validity for the simplification quality. Test demonstrates that the algorithm is efficient for the geometric and attribute feature of the model maintenance.

关 键 词：简化 半边折叠 几何误差 属性误差 属性特征权重 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]