Journal of System Simulation ›› 2019, Vol. 31 ›› Issue (2): 218-226.doi: 10.16182/j.issn1004731x.joss.17DEA-010

• Orginal Article • Previous Articles     Next Articles

Centroidal Voronoi Tessellation with Local Optimization

Ye Tianyu1, Wang Yiqun2, Yan Dongming2, *, Yong Junhai1   

  1. 1. School of Software, Tsinghua University, Beijing 100084, China;
    2. NLPR, Insistute of Automation, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2016-10-12 Revised:2017-01-30 Online:2019-02-15 Published:2019-02-15

Abstract: Centroidal Voronoi tessellation is a special geometric structure, which has many applications in various fields such as geographical information system, signal processing, mesh generation/optimization, visualization and so on. Due to the highly non-convex nature of the CVT energy function, the existing methods for computing CVT have several drawbacks, which always trap into local minima. We propose generation optimization and stochastic optimization schemes for further reducing the CVT energy. Experimental results show that the proposed method improves both quality and efficiency compared to the recent approaches.

Key words: centroidal Voronoi tessellation, local minimum, optimization, irregular point

CLC Number: