面向三维目标的矢量型卷积网络

doi:10.16451/j.cnki.issn1003-6059.202203007

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Abstract The 3D object recognition is usually based on convolutional neural networks. The spatial information of 3D objects is lost due to too many pooling layers used in the process of feature aggregation. To solve the above problem, a convolutional vector network for 3D mesh object recognition is proposed in this paper. Firstly, the surface polynomials are introduced to fit the local mesh of the object, and then the surface shape convolution kernels are clustered. The feature vector of structure-aware is generated by self-measuring the similarity between the local mesh in the object and convolution kernels. The multi-headed attention mechanism module is then employed to achieve feature aggregation from local regions to a larger scale to obtain component-level feature vectors. Finally, the 3D objects are classified through the 3D vector network. The proposed network achieves a high classification accuracy on SHREC10, SHREC11 and SHREC15 datasets. In addition, generalization and robustness of the proposed network are demonstrated through the multi-resolution object comparison experiment and the multi-sampling point comparison experiment.

Key words： 3D Shape Recognition Vector-Type Convolutional Network Structure-Aware 3D Vector Network

Received: 29 October 2021

ZTFLH:	TP 391.4
	TP 181

Fund:National Natural Science Foundation of China(No.62071260,62006131,61603202), Natural Science Foundation of Zhejiang Province(No.LZ22F020001,LY17F030002,LY20F030005)

Corresponding Authors: ZHAO Jieyu, Ph.D., professor. His research interests include computational intelligence, pattern re-cognition and natural human-computer interaction.

About author:: QIU Qilu, master student. His research interests include three-dimensional convolutio-nal networks and pattern recognition.
CHEN Yu, Ph.D. candidate. Her research interests include image processing and deep learning.

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Cite this article:

QIU Qilu,ZHAO Jieyu,CHEN Yu. A Convolutional Vector Network for 3D Mesh Object Recognition[J]. Pattern Recognition and Artificial Intelligence, 2022, 35(3): 271-282.

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http://manu46.magtech.com.cn/Jweb_prai/EN/10.16451/j.cnki.issn1003-6059.202203007 OR http://manu46.magtech.com.cn/Jweb_prai/EN/Y2022/V35/I3/271

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