计算机应用 ›› 2013, Vol. 33 ›› Issue (11): 3167-3171.

• 多媒体处理技术 • 上一篇    下一篇

多特征融合的网格模型简化方法

王海玲1,2,王建3,印桂生4,乔付2,周波2   

  1. 1. 哈尔滨工程大学 计算机科学与技术学院,哈尔滨 150001;
    2. 黑龙江科技大学 计算机与信息工程学院,哈尔滨 150027
    3. 哈尔滨工程大学 网络信息中心,哈尔滨 150001
    4. College of Computer Science and Technology, Harbin Engineering University, Harbin Heilongjiang 150001, China;
  • 收稿日期:2013-05-08 修回日期:2013-07-17 出版日期:2013-11-01 发布日期:2013-12-04
  • 通讯作者: 王海玲
  • 作者简介:王海玲(1980-),女,河北邯郸人,博士研究生,CCF会员,主要研究方向:虚拟现实、计算机图形学;王建(1980-), 男,安徽砀山人,工程师,硕士,主要研究方向:并行计算、计算机网络;印桂生(1964-),男,江苏泰兴人,教授,博士生导师,博士,CCF会员,主要研究方向:数据库和知识库应用系统、虚拟现实。
  • 基金资助:
    国家自然科学基金资助项目;黑龙江省自然科学基金资助项目

Multi-feature fusion method for mesh simplification

WANG Hailing1,2,WANG Jian3,YIN Guisheng2,FU Qiao1,ZHOU Bo1   

  1. 1. College of Computer and Information Engineering, Heilongjiang University of Science and Technology, Harbin Heilongjiang 150027, China;
    2. College of Computer Science and Technology, Harbin Engineering University, Harbin Heilongjiang 150001, China;
    3. Centre of Network Information, Harbin Engineering University, Harbin Heilongjiang 150001, China
  • Received:2013-05-08 Revised:2013-07-17 Online:2013-12-04 Published:2013-11-01
  • Contact: WANG Hailing

摘要: 针对三维网格模型简化过程中的过简化和失真问题,提出一种利用多特征融合的度量方法引导三维网格模型的简化过程。该方法通过分析模型简化的误差度量准则和模型的特征信息,首先利用法向信息加权的二次误差方法度量模型的几何特征信息;然后采用三角形边长比信息加权的挠率度量模型的视觉特征信息;最后融合几何特征信息和视觉特征信息作为模型简化的多特征信息引导模型简化。实验结果表明,该方法可有效保证算法的计算效率,保持简化后模型的形态特征,解决了模型的过简化和失真问题。

关键词: 模型简化, 误差度量, 特征分析, 多特征融合

Abstract: Most mesh simplification algorithms for three-dimensional (3D) may cause oversimplification and distortion in the processing of simplification. To address this problem, an efficient multi-feature fusion method for mesh simplification was proposed. The proposed method measured geometric feature information based on quadric error metric weighted by normal information firstly, then used torsion weighted by side ratio of triangle to measure visual feature information, at last proposed a multi-feature fusion metric to guide model simplification. The experimental results have been compared on execution time and visual quality with other edge contraction algorithms; the results show that the proposed method can guarantee computational efficiency, improve visual shape feature, and reduce oversimplification and distortion for simplified model.

Key words: mesh simplification, error metric, feature analysis, multi-feature fusion

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