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LPD-Net: 3D point cloud learning for large-scale place recognition and environment analysis

  • Zhe Liu
  • , Shunbo Zhou
  • , Chuanzhe Suo
  • , Peng Yin
  • , Wen Chen
  • , Hesheng Wang*
  • , Haoang Li
  • , Yun-Hui Liu
  • *Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

Point cloud based place recognition is still an open issue due to the difficulty in extracting local features from the raw 3D point cloud and generating the global descriptor, and it's even harder in the large-scale dynamic environments. In this paper, we develop a novel deep neural network, named LPD-Net (Large-scale Place Description Network), which can extract discriminative and generalizable global descriptors from the raw 3D point cloud. Two modules, the adaptive local feature extraction module and the graph-based neighborhood aggregation module, are proposed, which contribute to extract the local structures and reveal the spatial distribution of local features in the large-scale point cloud, with an end-to-end manner. We implement the proposed global descriptor in solving point cloud based retrieval tasks to achieve the large-scale place recognition. Comparison results show that our LPD-Net is much better than PointNetVLAD and reaches the state-of-the-art. We also compare our LPD-Net with the vision-based solutions to show the robustness of our approach to different weather and light conditions. © 2019 IEEE.
Original languageEnglish
Title of host publicationProceedings - 2019 International Conference on Computer Vision, ICCV 2019
PublisherIEEE
Pages2831-2840
ISBN (Electronic)978-1-7281-4804-5
ISBN (Print)978-1-7281-4803-8
DOIs
Publication statusPublished - Oct 2019
Externally publishedYes
Event17th IEEE/CVF International Conference on Computer Vision (ICCV 2019) - COEX Convention Center, Seoul, Korea, Republic of
Duration: 27 Oct 20192 Nov 2019
http://iccv2019.thecvf.com/

Publication series

NameProceedings of the IEEE International Conference on Computer Vision
ISSN (Print)1550-5499
ISSN (Electronic)2380-7504

Conference

Conference17th IEEE/CVF International Conference on Computer Vision (ICCV 2019)
Abbreviated titleICCV19
PlaceKorea, Republic of
CitySeoul
Period27/10/192/11/19
Internet address

Funding

This work is supported in part by the Natural Science Foundation of China under Grant U1613218, in part by the Hong Kong ITC under Grant ITS/448/16FP, in part by the National Key Research and Development Program of China under Grant 2018YF- B1309300, and in part by the VC Fund 4930745 of the CUHK T Stone Robotics Institute.

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