Browsing by Author "Gao, Xifeng"

Now showing items 1-4 of 4

    • Feature Preserving Octree-Based Hexahedral Meshing 

      Gao, Xifeng; Shen, Hanxiao; Panozzo, Daniele (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We propose an octree-based algorithm to tessellate the interior of a closed surface with hexahedral cells. The generated hexahedral mesh (1) explicitly preserves sharp features of the original input, (2) has a maximal, ...

    • Field-aligned Quadrangulation for Image Vectorization 

      Wei, Guangshun; Zhou, Yuanfeng; Gao, Xifeng; Ma, Qian; Xin, Shiqing; He, Ying (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Image vectorization is an important yet challenging problem, especially when the input image has rich content. In this paper, we develop a novel method for automatically vectorizing natural images with feature-aligned ...

    • Hexahedral Meshing With Varying Element Sizes 

      Xu, Kaoji; Gao, Xifeng; Deng, Zhigang; Chen, Guoning (© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
      Hexahedral (or Hex‐) meshes are preferred in a number of scientific and engineering simulations and analyses due to their desired numerical properties. Recent state‐of‐the‐art techniques can generate high‐quality hex‐meshes. ...

    • Occluder Generation for Buildings in Digital Games 

      Wu, Kui; He, Xu; Pan, Zherong; Gao, Xifeng (The Eurographics Association and John Wiley & Sons Ltd., 2022)
      Occlusion culling has become a prevalent method in modern game engines. It can significantly reduce the rendering cost by using an approximate coarse mesh (occluder) for culling hidden objects. An ideal occluder should use ...