Cited by 2,1003D Shape Modeling and AnalysisAdvanced Neural Network ApplicationsDomain Adaptation and Few-Shot Learning

PCT: Point cloud transformer

Open access
Guo, Meng-Hao, Cai, Jun-Xiong, Liu, Zheng-Ning, Mu, Tai-Jiang, Martin, Ralph R., Hu, Shi-Min·2021·Computational Visual Media

Abstract

The irregular domain and lack of ordering make it challenging to design deep neural networks for point cloud processing. This paper presents a novel framework named Point Cloud Transformer (PCT) for point cloud learning. PCT is based on Transformer, which achieves huge success in natural language processing and displays great potential in image processing. It is inherently permutation invariant for processing a sequence of points, making it well-suited for point cloud learning. To better capture local context within the point cloud, we enhance input embedding with the support of farthest point sampling and nearest neighbor search. Extensive experiments demonstrate that the PCT achieves the state-of-the-art performance on shape classification, part segmentation, semantic segmentation, and normal estimation tasks.

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  • Cross-lingual gap should be considered for the transferability of Transformer based multimodal learning.

    “Cross-lingual gap also should be considered for the transferability of Transformer based multimodal learning, e.g., universal cross-lingual generalization from English to non-English multimodal contexts [206], [277].”

    From Multimodal learning with transformers: A survey (2023) · cites this paper as [277]

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Authors
Guo, M.-H., Cai, J.-X., Liu, Z.-N., Mu, T.-J., Martin, R. R., & Hu, S.-M.
Affiliations
  • Tsinghua University (CN)
  • Cardiff University (GB)
Venue
Computational Visual Media
Published
2021-06
Volume
7
Issue
2
Pages
187-199
ISSN
  • 2096-0433 (ISSN-L)
  • 2096-0662
OpenAlex
W3111535274
Cited by
2,100
References
17
Citations by year
2026: 309 · 2025: 505 · 2024: 515 · 2023: 428 · 2022: 266 · 2021: 76 · 2020: 1
FWCI
182.77
Type
journal article
Language
en
Open access
Locations
  • Computational Visual Media (publishedVersion, cc-by)
  • ORCA Online Research @Cardiff (Cardiff University) (acceptedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Deutsche Forschungsgemeinschaft
  • National Natural Science Foundation of China (61761136018, 61521002)
Topics
  • Physical Sciences › Engineering › Computational Mechanics › 3D Shape Modeling and Analysis
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
Keywords
point cloud processing, point cloud transformer, transformer models, permutation invariance, farthest point sampling, nearest neighbor search, shape classification, part segmentation, semantic segmentation, surface normal estimation

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