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A 3D Point Cloud Classification Method Based on Adaptive Graph Convolution and Global Attention
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DOI：10.3390/s24020617.png)
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摘要
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In recent years, there has been significant growth in the ubiquity and popularity of three-dimensional (3D) point clouds, with an increasing focus on the classification of 3D point clouds. To extract richer features from point clouds, many researchers have turned their attention to various point set regions and channels within irregular point clouds. However, this approach has limited capability in attending to crucial regions of interest in 3D point clouds and may overlook valuable in;
mation from neighboring features during feature aggregation. There;
e, this paper proposes a novel 3D point cloud classification method based on global attention and adaptive graph convolution (Att-AdaptNet). The method consists of two main branches: the first branch computes attention masks;
each point, while the second branch employs adaptive graph convolution to extract global features from the point set. It dynamically learns features based on point interactions, generating adaptive kernels to effectively and precisely capture diverse relationships among points from different semantic parts. Experimental results demonstrate that the proposed model achieves 93.8% in overall accuracy and 90.8% in average accuracy on the ModeNet40 dataset.
Keyword:
global attention
adaptive graph convolution
adaptive kernels
point cloud classification
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3.5
论文数:
7.2W
被引数:
20.9W
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