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计算机工程 ›› 2012, Vol. 38 ›› Issue (14): 199-202. doi: 10.3969/j.issn.1000-3428.2012.14.060

• 图形图像处理 • 上一篇    下一篇

一种基于面片的三维重建算法

岳立廷,于 明,于 洋,阎 刚,薛翠红   

  1. (河北工业大学计算机科学与软件学院,天津 300401)
  • 收稿日期:2011-09-02 出版日期:2012-07-20 发布日期:2012-07-20
  • 作者简介:岳立廷(1985-),男,硕士研究生,主研方向:图像处理,模式识别;于 明,教授;于 洋,博士研究生;阎 刚、薛翠红,讲师
  • 基金资助:
    河北省教育厅基金资助重点项目(ZD200911)

3D Reconstruction Algorithm Based on Facet

YUE Li-ting, YU Ming, YU Yang, YAN Gang, XUE Cui-hong   

  1. (School of Computer Science and Software, Hebei University of Technology, Tianjin 300401, China)
  • Received:2011-09-02 Online:2012-07-20 Published:2012-07-20

摘要: 传统基于面片的多视角立体视觉算法在扩展面片时缺少空间几何约束,导致Poisson表面重建时生成错误顶点。为此,提出一种基于面片的三维重建算法。利用相邻面片初始化扩展面片,根据顶点k近邻的距离检测并去除离群顶点,从而得到物体表面的三维模型。实验结果证明了该算法的有效性和准确性。

关键词: 三维重建, 多视角, 空间几何约束, Poisson表面重建, k近邻, 离群点检测

Abstract: The PMVS algorithm does not add space geometric constraint during expanding spare points to dense points, and the Poisson surface reconstruction algorithm outputs a closed mesh model which contains wrong vertices. In order to solve this problem, this paper considers patches around the expanding one at the same time, detects the outlier vertices of triangle meshes according to k Nearest Neighbor(kNN) and removes extraneous portions of the mesh. Experimental result shows that the reconstruction algorithm is more smooth and more accurate.

Key words: 3D reconstruction, multiple views, space geometric constraint, Poisson surface reconstruction, k Nearest Neighbor(kNN), outlier detection

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