基于分层特征化网络的三维人脸识别

doi:10.11772/j.issn.1001-9081.2020010103

计算机应用 ›› 2020, Vol. 40 ›› Issue (9): 2514-2518.DOI: 10.11772/j.issn.1001-9081.2020010103

基于分层特征化网络的三维人脸识别

赵青¹, 余元辉²

1. 集美大学理学院, 福建厦门 361021;
2. 集美大学计算机工程学院, 福建厦门 361021

收稿日期:2020-02-07 修回日期:2020-05-31 出版日期:2020-09-10 发布日期:2020-06-03
通讯作者: 余元辉
作者简介:赵青(1993-),女,河北辛集人,硕士研究生,主要研究方向:三维人脸识别;余元辉(1973-),男,河南平顶山人,副教授,硕士,主要研究方向:智能信息处理、移动agent计算、数据融合、多媒体图像处理。
基金资助:
集美大学横向技术开发项目（S19142）。

3D face recognition based on hierarchical feature network

ZHAO Qing¹, YU Yuanhui²

1. School of Science, Jimei University, Xiamen Fujian 361021, China;
2. Computer Engineering College, Jimei University, Xiamen Fujian 361021, China

Received:2020-02-07 Revised:2020-05-31 Online:2020-09-10 Published:2020-06-03
Supported by:
This work is partially supported by Jimei University Horizontal Technology Development Project (S19142).

摘要/Abstract

摘要： 针对三维人脸多表情、多姿态变化同时存在，人脸点云数据不同程度缺失的问题，探索性地将三维点云人脸数据应用于PointNet系列的分类网络并进行了识别结果的对比与分析，然后提出了一种新的网络框架——HFN。首先，在数据预处理后随机采样固定点数的点云；其次，将固定点数的人脸点云输入SA模块，以获取局部区域的质心点、邻域点并提取局部区域的特征，然后拼接由DSA模块基于多方向卷积提取的点云空间结构特征；最后，利用全连接层进行三维人脸的分类，从而实现三维人脸识别。在CASIA数据库上的结果显示，所提方法的平均识别率为96.34%，优于PointNet、PointNet++、PointCNN和空间聚合网络（SAN）这几种分类网络。

关键词: 三维人脸识别, 三维点云, 分类网络, 姿态变化, 空间结构特征

Abstract: Focused on the problems of multiple expression variations, multiple pose variations as well as varying-degree missing face point cloud data in Three-Dimensional (3D) faces, 3D point cloud face data was exploratively applied to PointNet series classification networks, and the recognition results were compared and analyzed, then a new network framework named HFN (Hierarchical Feature Network) was proposed. First, the point cloud with fixed points was randomly sampled after data preprocessing. Second, the point fixed point cloud was input into SA (Set Abstraction) module in order to obtain the centroid points and neighborhood points of the local areas, and extract the features of the local areas, then the point cloud spatial structural features extracted from DSA (Directional Spatial Aggregation) module based on multi-directional convolution were mosaicked. Finally, the full connection layer was used to perform the classification of 3D faces, so as to realize the 3D face recognition. The results on CASIA database show that the average recognition rate of the proposed method is 96.34%, which is better than those of classification networks such as PointNet, PointNet++, PointCNN and Spatial Aggregation Net (SAN).

Key words: 3D face recognition, 3D point cloud, classification network, pose variation, spatial structural feature

中图分类号:

TP391.4

赵青, 余元辉. 基于分层特征化网络的三维人脸识别[J]. 计算机应用, 2020, 40(9): 2514-2518.

ZHAO Qing, YU Yuanhui. 3D face recognition based on hierarchical feature network[J]. Journal of Computer Applications, 2020, 40(9): 2514-2518.

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基于分层特征化网络的三维人脸识别

3D face recognition based on hierarchical feature network

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