Engineering with Computers

, Volume 21, Issue 2, pp 91–100 | Cite as

A general framework for analysis and comparison of surface mesh optimization techniques

  • Irina Semenova
  • Nikita Kozhekin
  • Vladimir Savchenko
  • Ichiro Hagiwara
Original article

Abstract

Many different algorithms for surface mesh optimization (including smoothing, remeshing, simplification and subdivision), each giving different results, have recently been proposed. All these approaches affect vertices of the mesh. Vertex coordinates are modified, new vertices are added and some original ones are removed, with the result that the shape of the original surface is changed. The important question is how to evaluate the differences in shape between the input and output models. In this paper, we present a novel and versatile framework for analysis of various mesh optimization algorithms in terms of shape preservation. We depart from the usual strategy by measuring the changes in the approximated smooth surfaces rather than in the corresponding meshes. The proposed framework consists of two error metrics: normal-based and physically based. We demonstrate that our metrics allow more subtle changes in shape to be captured than is possible with some commonly used measures. As an example, the proposed tool is used to compare three different techniques, reflecting basic ideas on how to solve the surface mesh improvement problem.

Keywords

Surface mesh optimization Error metric Shape preservation 

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Copyright information

© Springer-Verlag London Limited 2005

Authors and Affiliations

  • Irina Semenova
    • 1
  • Nikita Kozhekin
    • 1
  • Vladimir Savchenko
    • 2
  • Ichiro Hagiwara
    • 1
  1. 1.Department of Mech. Sciences and Eng.Tokyo Institute of TechnologyTokyoJapan
  2. 2.Faculty of Computer and Information SciencesHosei UniversityTokyoJapan

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