Laser & Optoelectronics Progress, Volume. 62, Issue 16, 1637004(2025)

Attention-Enhanced Multiscale Dual-Feature Point Cloud Completion Method

Tianli Wang1, Zequn Zhang1、*, Jie Chen1, Dunbing Tang1, Lanlan Jiang2, and Lingfei Qian3
Author Affiliations
  • 1College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu , China
  • 2Nanjing Nanrui Information Communication Technology, Nanjing 210003, Jiangsu , China
  • 3College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu , China
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    Lidar-scanned point cloud data often suffer from missing information, and most existing point cloud completion methods struggle to reconstruct local details because of the sparse and unordered nature of the data. To address this issue, this paper proposes an attention-enhanced multiscale dual-feature point cloud completion method. The multiscale dual-feature fusion module is designed by combining global and local features, to improve completion accuracy. To enhance feature extraction, an attention mechanism is introduced to boost the network's ability to capture and represent key feature points. During the point cloud generation phase, a pyramid-like decoder structure is used to progressively generate high-resolution point clouds, preserving geometric details and reducing distortion. Finally, a generative adversarial network framework, combined with an offset-position attention discriminator, further enhances the point cloud completion quality. The experimental results show that the complementary accuracy of this method on the PCN dataset improves by 11.61% compared to that of PF-Net, and the visualization results are better than those of other methods in comparisons, which verify the effectiveness of the proposed network.

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    Tianli Wang, Zequn Zhang, Jie Chen, Dunbing Tang, Lanlan Jiang, Lingfei Qian. Attention-Enhanced Multiscale Dual-Feature Point Cloud Completion Method[J]. Laser & Optoelectronics Progress, 2025, 62(16): 1637004

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    Paper Information

    Category: Digital Image Processing

    Received: Jan. 9, 2025

    Accepted: Mar. 14, 2025

    Published Online: Aug. 6, 2025

    The Author Email: Zequn Zhang (zhjj370@nuaa.edu.cn)

    DOI:10.3788/LOP250484

    CSTR:32186.14.LOP250484

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