GridFace: Face Rectification via Learning Local Homography Transformations

Erjin Zhou, Zhimin Cao, Jian Sun; Proceedings of the European Conference on Computer Vision (ECCV), 2018, pp. 3-19

In this paper, we propose a novel method, called GridFace, to reduce facial geometric variations and improve the recognition performance. Our method rectifies the face by local homography transformations, which are estimated by a face rectification network. To encourage the image generation with canonical views, we apply a regularization based on the natural face distribution. We learn the rectification network and recognition network in an end-to-end manner. Extensive experiments show our method greatly reduces geometric variations, and gains significant improvements in unconstrained face recognition scenarios.