Technology of Graphic & Image
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1571-1576,1582

Attention weighted feature aggregation PointNet network for part segmentation

Liang Zhenhua
Wang Feng
School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China

Abstract

In order to solve the problem of reducing the accuracy of part segmentation due to the loss of secondary features by PointNet max pooling, this paper proposed attention weighted feature aggregation PointNet network for part segmentation, and it could make full use of different features of point cloud for part segmentation. Firstly, it used the multiple layer perceptrons to extract the spatial geometric features of the point cloud, and then multiplied the features and the shared weight matrix to obtain the attention scores of each feature of each point. Then it used the normalized scores as the weight to multiply the corresponding global feature and summed to obtain the aggregated global feature. Finally, it used the multiple layer perceptrons to map the aggregated feature to the part segmentation results. Experimental results show that the proposed method improves the overall average mean intersection over union of part segmentation than traditional PointNet, has significant advantages in network robustness and computational complexity, and effectively optimizes PointNet.

Foundation Support

国家自然科学基金资助项目(61901124)
广东省自然科学基金资助项目(2021A1515012305)
广州市基础研究计划资助项目(202102020856)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.08.0423
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 5
Section: Technology of Graphic & Image
Pages: 1571-1576,1582
Serial Number: 1001-3695(2023)05-045-1571-06

Publish History

[2022-11-08] Accepted Paper
[2023-05-05] Printed Article

Cite This Article

梁振华, 王丰. 面向部件分割的PointNet注意力加权特征聚合网络 [J]. 计算机应用研究, 2023, 40 (5): 1571-1576,1582. (Liang Zhenhua, Wang Feng. Attention weighted feature aggregation PointNet network for part segmentation [J]. Application Research of Computers, 2023, 40 (5): 1571-1576,1582. )

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  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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