基于深度相机的飞机中央翼油箱高精度三维重建方法
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作者单位:

1.中航西安飞机工业集团股份有限公司,西安 710089;2.南京航空航天大学计算机科学与技术学院,南京 211106;3.南京航空航天大学机电学院,南京 210016

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通讯作者:

李红卫,男,副总工程师,E-mail: lhwxifei@163.com。

中图分类号:

V262

基金项目:

国家重点研究发展计划(2019YFB1707504)。


3D Reconstruction of Aircraft Central Wing Fuel Tank Based on Depth Camera
Author:
Affiliation:

1.AVIC Xi’an Aircraft Industry Group Company Ltd., Xi’an 710089, China;2.College of Computer Science and Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 211106, China;3.College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China

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    摘要:

    提出一种基于深度相机的飞机中央翼油箱高精度三维重建方法。该方法用多视点云实现配准,配准过程包括粗配准和精配准两个阶段。首先在2个点云上建立点对特征(Point pair features,PPFs)作为全局模型描述。然后,对一组粗配准位姿进行投票,得分最高的位姿作为初始位姿。在此初始位姿的基础上,构造颜色和几何的联合目标函数,利用迭代最近点(Iterative closest point,ICP)对点云进行对齐。将上述过程应用于相邻帧点云,并通过图优化重建结果,实现完整的飞机中央翼油箱三维模型重建。与其他方法相比,本文方法实现了高精度的三维重建。此外,当遇到重复的特征和结构时,传统的ICP可能缺乏稳定性,但本文方法仍然适用。

    Abstract:

    A high-precision reconstruction method is presented based on the depth camera to rebuild the model of the aircraft fuel tank. The method achieves the registration by the use of multi-view point clouds, and the registration process includes two stages: Coarse registration and fine registration. We first establish the point pair features (PPFs) on two point clouds as the global descriptor. Then, we deploy a voting method on a set of coarse poses to obtain the one which has the highest score as the initial pose. Based on the initial pose, we construct a joint photometric and geometric objective function, in order to align the colored point clouds using iterative closest point (ICP). Finally, we apply the above process on the adjacent frame point clouds and optimize the reconstruction results with graph optimization, so as to achieve the reconstruction of the complete 3D model of the aircraft fuel tank. The method achieves high accurate registration than other state-of-the-art approaches. In addition, the method is robust when encountering the repetitive features and structures, in which the traditional ICP may lack stability under this situation.

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引用本文

李红卫,魏泽勇,曹轩铭,汪俊.基于深度相机的飞机中央翼油箱高精度三维重建方法[J].南京航空航天大学学报,2022,54(3):457-465

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  • 收稿日期:2020-07-05
  • 最后修改日期:2021-04-21
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  • 在线发布日期: 2022-06-05
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