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Face presentation attack detection (PAD) has been extensively studied by research communities to enhance the security of face recognition systems. Although existing methods have achieved good performance on testing data with similar…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Zhi Li , Rizhao Cai , Haoliang Li , Kwok-Yan Lam , Yongjian Hu , Alex C. Kot

Advances in deep learning, combined with availability of large datasets, have led to impressive improvements in face presentation attack detection research. However, state-of-the-art face antispoofing systems are still vulnerable to novel…

Computer Vision and Pattern Recognition · Computer Science 2021-08-30 Mohammad Rostami , Leonidas Spinoulas , Mohamed Hussein , Joe Mathai , Wael Abd-Almageed

Face is one of the predominant means of person recognition. In the process of ageing, human face is prone to many factors such as time, attributes, weather and other subject specific variations. The impact of these factors were not well…

Computer Vision and Pattern Recognition · Computer Science 2021-06-16 Sinzith Tatikonda , Athira Nambiar , Anurag Mittal

Faces and their expressions are one of the potent subjects for digital images. Detecting emotions from images is an ancient task in the field of computer vision; however, performing its reverse -- synthesizing facial expressions from images…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Mohammad Imrul Jubair , Md. Masud Rana , Md. Amir Hamza , Mohsena Ashraf , Fahim Ahsan Khan , Ahnaf Tahseen Prince

We propose a deep representation of appearance, i. e., the relation of color, surface orientation, viewer position, material and illumination. Previous approaches have useddeep learning to extract classic appearance representationsrelating…

Computer Vision and Pattern Recognition · Computer Science 2019-10-30 Maxim Maximov , Laura Leal-Taixé , Mario Fritz , Tobias Ritschel

Facial expression recognition is a challenging classification task that holds broad application prospects in the field of human-computer interaction. This paper aims to introduce the method we will adopt in the 8th Affective and Behavioral…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Jun Yu , Yang Zheng , Lei Wang , Yongqi Wang , Shengfan Xu

Face anti-spoofing is crucial to the security of face recognition systems. Most previous methods formulate face anti-spoofing as a supervised learning problem to detect various predefined presentation attacks, which need large scale…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Yunxiao Qin , Chenxu Zhao , Xiangyu Zhu , Zezheng Wang , Zitong Yu , Tianyu Fu , Feng Zhou , Jingping Shi , Zhen Lei

Designing face recognition systems that are capable of matching face images obtained in the thermal spectrum with those obtained in the visible spectrum is a challenging problem. In this work, we propose the use of semantic-guided…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Cunjian Chen , Arun Ross

Despite recent success of self-supervised based contrastive learning model for 3D point clouds representation, the adversarial robustness of such pre-trained models raised concerns. Adversarial contrastive learning (ACL) is considered an…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Junxuan Huang , Yatong An , Lu cheng , Bai Chen , Junsong Yuan , Chunming Qiao

Increasingly, researchers have suggested the benefits of temporal analysis to improve our understanding of the learning process. Sequential pattern mining (SPM), as a pattern recognition technique, has the potential to reveal the temporal…

Machine Learning · Computer Science 2023-05-02 Yingbin Zhang , Luc Paquette

Multi-view facial expression recognition (FER) is a challenging task because the appearance of an expression varies in poses. To alleviate the influences of poses, recent methods either perform pose normalization or learn separate FER…

Computer Vision and Pattern Recognition · Computer Science 2019-05-27 Yuanyuan Liu , Jiyao Peng , Jiabei Zeng , Shiguang Shan

To detect bias in face recognition networks, it can be useful to probe a network under test using samples in which only specific attributes vary in some controlled way. However, capturing a sufficiently large dataset with specific control…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Nataniel Ruiz , Barry-John Theobald , Anurag Ranjan , Ahmed Hussein Abdelaziz , Nicholas Apostoloff

Facial expression recognition is a challenging task, arguably because of large intra-class variations and high inter-class similarities. The core drawback of the existing approaches is the lack of ability to discriminate the changes in…

Computer Vision and Pattern Recognition · Computer Science 2018-12-12 Yanwei Li , Xingang Wang , Shilei Zhang , Lingxi Xie , Wenqi Wu , Hongyuan Yu , Zheng Zhu

Person re-identification aims at establishing the identity of a pedestrian from a gallery that contains images of multiple people obtained from a multi-camera system. Many challenges such as occlusions, drastic lighting and pose variations…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Guodong Ding , Salman Khan , Zhenmin Tang , Fatih Porikli

Physics-Informed Neural Networks (PINNs) have emerged as a tool for approximating the solution of Partial Differential Equations (PDEs) in both forward and inverse problems. PINNs minimize a loss function which includes the PDE residual…

Numerical Analysis · Mathematics 2025-09-23 Coen Visser , Alexander Heinlein , Bianca Giovanardi

We propose a self-supervised framework for learning facial attributes by simply watching videos of a human face speaking, laughing, and moving over time. To perform this task, we introduce a network, Facial Attributes-Net (FAb-Net), that is…

Computer Vision and Pattern Recognition · Computer Science 2018-08-22 Olivia Wiles , A. Sophia Koepke , Andrew Zisserman

The remarkable success of machine learning has fostered a growing number of cloud-based intelligent services for mobile users. Such a service requires a user to send data, e.g. image, voice and video, to the provider, which presents a…

Machine Learning · Computer Science 2020-06-12 Sicong Liu , Junzhao Du , Anshumali Shrivastava , Lin Zhong

Point cloud learning is receiving increasing attention. However, most existing point cloud models lack the practical ability to deal with the unavoidable presence of unknown objects. This paper primarily discusses point cloud learning in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Jie Hong , Shi Qiu , Weihao Li , Saeed Anwar , Mehrtash Harandi , Nick Barnes , Lars Petersson

Physical adversarial attacks pose a significant practical threat as it deceives deep learning systems operating in the real world by producing prominent and maliciously designed physical perturbations. Emphasizing the evaluation of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Amira Guesmi , Ioan Marius Bilasco , Muhammad Shafique , Ihsen Alouani

In this paper we propose an extension of the Attention Branch Network (ABN) by using instance segmentation for generating sharper attention maps for action recognition. Methods for visual explanation such as Grad-CAM usually generate blurry…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Tomoya Nitta , Tsubasa Hirakawa , Hironobu Fujiyoshi , Toru Tamaki