关键词: 人脸识别, 轻量化神经网络单元, 实时, 非线性激活函数

Abstract:

In order to achieve high-precision real-time face recognition on embedded and mobile devices, the advant-ages and disadvantages of common networks in face recognition are analyzed, and an efficient deep convolution neural network model Lightfacenet is proposed. In the network, a lightweight neural network unit is proposed, which combines the deep separable convolution, point-by-point convolution, bottleneck structure and squeeze and excitation structure. The network can effectively solve the problem of parameter redundancy and large computation caused by the deep neural network with a certain accuracy, and then further improve the accuracy of the network through improved non-linear activation. The neural network not only retains some advantages of the convolutional neural network, but also balances the disadvantages of the network. In the same experimental environment, the Lightfacenet network not only achieves very high recognition accuracy, but also achieves real-time effect in the speed of model reasoning. After trained on MS-Celeb-1M data set, this model achieves 99.50% accuracy on LFW, and its effect is comparable to the advanced large deep convolutional neural network. For face recognition, Lightfacenet improves efficiency while ensuring accuracy compared to the most advanced mobile convolutional neural networks.

Key words: face recognition, lightweight neural network unit, real time, non-linear activation