LGCN: Learnable Gabor Convolution Network for Human Gender Recognition in the Wild

Peng CHEN  Weijun LI  Linjun SUN  Xin NING  Lina YU  Liping ZHANG  

IEICE TRANSACTIONS on Information and Systems   Vol.E102-D   No.10   pp.2067-2071
Publication Date: 2019/10/01
Publicized: 2019/06/13
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2018EDL8239
Type of Manuscript: LETTER
Category: Image Recognition, Computer Vision
gender recognition,  learnable Gabor convolutional neural network,  learnable Gabor filter,  back propagation,  

Full Text: FreePDF

Human gender recognition in the wild is a challenging task due to complex face variations, such as poses, lighting, occlusions, etc. In this letter, learnable Gabor convolutional network (LGCN), a new neural network computing framework for gender recognition was proposed. In LGCN, a learnable Gabor filter (LGF) is introduced and combined with the convolutional neural network (CNN). Specifically, the proposed framework is constructed by replacing some first layer convolutional kernels of a standard CNN with LGFs. Here, LGFs learn intrinsic parameters by using standard back propagation method, so that the values of those parameters are no longer fixed by experience as traditional methods, but can be modified by self-learning automatically. In addition, the performance of LGCN in gender recognition is further improved by applying a proposed feature combination strategy. The experimental results demonstrate that, compared to the standard CNNs with identical network architecture, our approach achieves better performance on three challenging public datasets without introducing any sacrifice in parameter size.