PointSCNet: Point Cloud Structure and Correlation Learning Based on Space Filling Curve-Guided Sampling
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Abstract (arXiv)
Geometrical structures and the internal local region relationship, such as symmetry, regular array, junction, etc., are essential for understanding a 3D shape. This paper proposes a point cloud feature extraction network named PointSCNet, to capture the geometrical structure information and local region correlation information of a point cloud. The PointSCNet consists of three main modules: the space-filling curve-guided sampling module, the information fusion module, and the channel-spatial attention module. The space-filling curve-guided sampling module uses Z-order curve coding to sample points that contain geometrical correlation. The information fusion module uses a correlation tensor and a set of skip connections to fuse the structure and correlation information. The channel-spatial attention module enhances the representation of key points and crucial feature channels to refine the network. The proposed PointSCNet is evaluated on shape classification and part segmentation tasks. The experimental results demonstrate that the PointSCNet outperforms or is on par with state-of-the-art methods by learning the structure and correlation of point clouds effectively.
Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Builds on 39 of its 58 references that are in the map. First posted on arXiv 21 Feb 2022.
Builds on
39 of 58 references.
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27 more
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Citing papers per year: 2023: 1; 2024: 1; 2025: 1; 2026: 1.
4 papers.
- 2023Deep Learning-based 3D Point Cloud Classification: A Systematic Survey and Outlookcited by 24
- 2024A comprehensive overview of deep learning techniques for 3D point cloud classification and semantic segmentationcited by 14
- 2025MS-DGCNN++: Multi-Scale Dynamic Graph Convolution with Scale-Dependent Normalization for Robust LiDAR Tree Species Classificationcited by 1
- 2026LIDARLearn: A Unified Deep Learning Library for 3D Point Cloud Classification, Segmentation, and Self-Supervised Representation Learningcited by 0
- 2026LIDARLearn: A Unified Deep Learning Library for 3D Point Cloud Classification, Segmentation, and Self-Supervised Representation Learning12 Apr 2026
- 2025MS-DGCNN++: Multi-Scale Dynamic Graph Convolution with Scale-Dependent Normalization for Robust LiDAR Tree Species Classification16 Jul 2025
- 2024A comprehensive overview of deep learning techniques for 3D point cloud classification and semantic segmentation20 May 2024
- 2023Deep Learning-based 3D Point Cloud Classification: A Systematic Survey and Outlook5 Nov 2023