Advances in Manufacturing

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A hybrid point cloud alignment method combining particle swarm optimization and iterative closest point method

Quan Yu • Kesheng Wang   

  1. Department of Production and Quality Engineering, Norwegian
    University of Science and Technology, Trondheim, Norway
  • 收稿日期:2014-01-14 出版日期:2014-03-21 发布日期:2014-01-27
  • 通讯作者: e-mail: quan.yu@ntnu.no

A hybrid point cloud alignment method combining particle swarm optimization and iterative closest point method

Quan Yu • Kesheng Wang   

  1. Department of Production and Quality Engineering, Norwegian
    University of Science and Technology, Trondheim, Norway
  • Received:2014-01-14 Online:2014-03-21 Published:2014-01-27
  • Contact: e-mail: quan.yu@ntnu.no

摘要: 3D quality inspection is widely applied in many industrial fields including mould design, automotive and blade manufacturing, etc. A commonly used method is to obtain the point cloud of the inspected object and make a comparison between the point cloud and the corresponding CAD model or template. Thus, it is important to align the point cloud with the template first and foremost. Moreover, for the purpose of automatization of quality inspection, this alignment process is expected to be completed without manual interference. In this paper, we propose to combine the particle swarm optimization (PSO) with iterative closest point (ICP) algorithm to achieve the automated point cloud alignment. The combination of the two algorithms can achieve a balance between the alignment speed and accuracy, and avoid the local optimal caused by bad initial position of the point cloud.

关键词: Quality inspection , Point cloud alignment , Particle swarm optimization (PSO)  , Iterative closest point (ICP)

Abstract: 3D quality inspection is widely applied in many industrial fields including mould design, automotive and blade manufacturing, etc. A commonly used method is to obtain the point cloud of the inspected object and make a comparison between the point cloud and the corresponding CAD model or template. Thus, it is important to align the point cloud with the template first and foremost. Moreover, for the purpose of automatization of quality inspection, this alignment process is expected to be completed without manual interference. In this paper, we propose to combine the particle swarm optimization (PSO) with iterative closest point (ICP) algorithm to achieve the automated point cloud alignment. The combination of the two algorithms can achieve a balance between the alignment speed and accuracy, and avoid the local optimal caused by bad initial position of the point cloud.

Key words: Quality inspection , Point cloud alignment , Particle swarm optimization (PSO)  , Iterative closest point (ICP)