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Volume 39 Issue 8
Aug.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  39(8): 1117-1121.
Liu Xudong, Ma Xiaoxuan, Xiong Zhang, et al. e-Government data exchange overlay network[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(7): 743-746. (in Chinese)
Citation: Li Wei, Li Xudong, Zhao Huijie, et al. Attitude normalization based line feature point cloud extraction approach[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(8): 1117-1121. (in Chinese)
shu

Attitude normalization based line feature point cloud extraction approach

  • School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 30 Aug 2012
  • Rev Recd Date: 06 Aug 2013
  • Publish Date: 30 Aug 2013
    Abstract
  • Extracting the point cloud corresponding to the edges from point cloud of a part is a basic work in the part 3D reconstruction, also a key point of point cloud processing. The commonly used curvature based LFPC(line feature point cloud) extraction approach may have large errors in curve surface fitting and curvature estimation due to the arbitrary attitude of original point cloud and the way of curvature estimation. An attitude normalization based LFPC extraction approach is proposed. First the attitude normalization is accomplished by adjust the principle direction of the point cloud to the z axis, then, after the curve surface fitting, the main curvature with the maximal absolute value is treated as curvature, finally, the LFPC is obtained by applying a curvature threshold. Experiments on different models show that the proposed approach has better efficiency and is adaptive to different kinds of models.

     

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    • References(12)
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