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Deeply Exploiting Long-Term View Dependency for 3D Shape Recognition
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DOI：10.1109/ACCESS.2019.2934650.png)
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摘要
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Recognition of 3D shapes is a fundamental task in computer vision. In recent years, view-based deep learning has emerged as an effective approach for 3D shape recognition. Most existing view-based methods treat the views of an object as an unordered set, which ignores the dynamic relations among the views, e.g. sequential semantic dependencies. In this paper, modeling the views of an object by a sequence, we aim at exploiting the long-term dependencies among different views for shape recognition, which is done by constructing a sequence-aware view aggregation module based on the bi-directional Long Short-Term Memory network. It is shown that our view aggregation module not only captures the bi-directional dependencies in view sequences, but also enjoys the robustness to circular shifts of input sequences. Incorporating the aggregation module into a standard convolutional network architecture, we develop an effective method for 3D shape classification and retrieval. Our method was evaluated on the ModelNet40/10 and ShapeNetCore55 datasets. The results show the encouraging performance gain from exploiting long-term dependencies in view sequences, as well as the superior performance of our method compared to the existing ones.
Keyword:
3D shape recognition
long-term dependency
multi-view deep learning
view aggregation
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期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
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