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In the past decades, the excessive use of the last-generation GAN (Generative Adversarial Networks) models in computer vision has enabled the creation of artificial face images that are visually indistinguishable from genuine ones. These…

Cryptography and Security · Computer Science 2022-03-04 Ehsan Nowroozi , Mauro Conti , Yassine Mekdad

In this paper, we propose a light reflection based face anti-spoofing method named Aurora Guard (AG), which is fast, simple yet effective that has already been deployed in real-world systems serving for millions of users. Specifically, our…

Computer Vision and Pattern Recognition · Computer Science 2019-02-28 Yao Liu , Ying Tai , Jilin Li , Shouhong Ding , Chengjie Wang , Feiyue Huang , Dongyang Li , Wenshuai Qi , Rongrong Ji

Nowadays, the adoption of face recognition for biometric authentication systems is usual, mainly because this is one of the most accessible biometric modalities. Techniques that rely on trespassing these kind of systems by using a forged…

Computer Vision and Pattern Recognition · Computer Science 2019-02-11 Rodrigo Bresan , Allan Pinto , Anderson Rocha , Carlos Beluzo , Tiago Carvalho

Ensuring the reliability of face recognition systems against presentation attacks necessitates the deployment of face anti-spoofing techniques. Despite considerable advancements in this domain, the ability of even the most state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Jiawei Chen , Xiao Yang , Heng Yin , Mingzhi Ma , Bihui Chen , Jianteng Peng , Yandong Guo , Zhaoxia Yin , Hang Su

We utilize the dynamics involved in the imaging of a fingerprint on a touch-based fingerprint reader, such as perspiration, changes in skin color (blanching), and skin distortion, to differentiate real fingers from spoof (fake) fingers.…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Tarang Chugh , Anil K. Jain

The emergence of artificial intelligence-generated content (AIGC) has raised concerns about the authenticity of multimedia content in various fields. However, existing research for forgery content detection has focused mainly on binary…

Multimedia · Computer Science 2023-08-29 Rui Zhang , Hongxia Wang , Mingshan Du , Hanqing Liu , Yang Zhou , Qiang Zeng

With the increasing variations of face presentation attacks, model generalization becomes an essential challenge for a practical face anti-spoofing system. This paper presents a generalized face anti-spoofing framework that consists of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Chu-Chun Chuang , Chien-Yi Wang , Shang-Hong Lai

Face morphing represents nowadays a big security threat in the context of electronic identity documents as well as an interesting challenge for researchers in the field of face recognition. Despite of the good performance obtained by…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Matteo Ferrara , Annalisa Franco , Davide Maltoni

Deep Convolutional Neural Networks (DCNNs) and their variants have been widely used in large scale face recognition(FR) recently. Existing methods have achieved good performance on many FR benchmarks. However, most of them suffer from two…

Computer Vision and Pattern Recognition · Computer Science 2021-06-28 Jing Xu , Tszhang Guo , Yong Xu , Zenglin Xu , Kun Bai

Convolutional neural network (CNN) slides a kernel over the whole image to produce an output map. This kernel scheme reduces the number of parameters with respect to a fully connected neural network (NN). While CNN has proven to be an…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Ihsan Ullah , Alfredo Petrosino

We present a novel online unsupervised method for face identity learning from video streams. The method exploits deep face descriptors together with a memory based learning mechanism that takes advantage of the temporal coherence of visual…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Federico Pernici , Federico Bartoli , Matteo Bruni , Alberto Del Bimbo

This work investigates the well-known problem of morphing attacks, which has drawn considerable attention in the biometrics community. Morphed images have exposed face recognition systems' susceptibility to false acceptance, resulting in…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Poorya Aghdaie , Baaria Chaudhary , Sobhan Soleymani , Jeremy Dawson , Nasser M. Nasrabadi

Face anti-spoofing plays a crucial role in protecting face recognition systems from various attacks. Previous model-based and deep learning approaches achieve satisfactory performance for 2D face spoofs, but remain limited for more advanced…

Computer Vision and Pattern Recognition · Computer Science 2018-12-14 Wei Hu , Gusi Te , Ju He , Dong Chen , Zongming Guo

Face morphing is a problem in computer graphics with numerous artistic and forensic applications. It is challenging due to variations in pose, lighting, gender, and ethnicity. This task consists of a warping for feature alignment and a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Guilherme Schardong , Tiago Novello , Hallison Paz , Iurii Medvedev , Vinícius da Silva , Luiz Velho , Nuno Gonçalves

Real-time face orientation recognition is a cutting-edge technology meant to track and analyze facial movements in virtual environments such as online interviews, remote meetings, and virtual classrooms. As the demand for virtual…

Human-Computer Interaction · Computer Science 2025-06-12 Tanjil Hasan Sakib , Samia Jahan Mojumder , Rajan Das Gupta , Md Imrul Hasan Showmick , Md. Yeasin Rahat , Md. Jakir Hossen

Online action detection is a task with the aim of identifying ongoing actions from streaming videos without any side information or access to future frames. Recent methods proposed to aggregate fixed temporal ranges of invisible but…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Sanqing Qu , Guang Chen , Dan Xu , Jinhu Dong , Fan Lu , Alois Knoll

In recent years, fingerprint recognition systems have made remarkable advancements in the field of biometric security as it plays an important role in personal, national and global security. In spite of all these notable advancements, the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-20 B. V. S Anusha , Sayan Banerjee , Subhasis Chaudhuri

Generative Adversarial Networks (GANs) can generate realistic fake face images that can easily fool human beings.On the contrary, a common Convolutional Neural Network(CNN) discriminator can achieve more than 99.9% accuracyin discerning…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Zhengzhe Liu , Xiaojuan Qi , Philip Torr

Face deblurring aims to restore a clear face image from a blurred input image with more explicit structure and facial details. However, most conventional image and face deblurring methods focus on the whole generated image resolution…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Xian Zhang , Hao Zhang , Jiancheng Lv , Xiaojie Li

Face recognition is an important yet challenging problem in computer vision. A major challenge in practical face recognition applications lies in significant variations between profile and frontal faces. Traditional techniques address this…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Xiaolong Yang , Xiaohong Jia , Dihong Gong , Dong-Ming Yan , Zhifeng Li , Wei Liu