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Face anti-spoofing (FAS) plays an important role in protecting face recognition systems from face representation attacks. Many recent studies in FAS have approached this problem with domain generalization technique. Domain generalization…

Computer Vision and Pattern Recognition · Computer Science 2021-07-15 Young Eun Kim , Seong-Whan Lee

We study self-supervised video representation learning, which is a challenging task due to 1) lack of labels for explicit supervision; 2) unstructured and noisy visual information. Existing methods mainly use contrastive loss with video…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Deng Huang , Wenhao Wu , Weiwen Hu , Xu Liu , Dongliang He , Zhihua Wu , Xiangmiao Wu , Mingkui Tan , Errui Ding

We present a neural point cloud rendering pipeline through a novel multi-frequency-aware patch adversarial learning framework. The proposed approach aims to improve the rendering realness by minimizing the spectrum discrepancy between real…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Jay Karhade , Haiyue Zhu , Ka-Shing Chung , Rajesh Tripathy , Wei Lin , Marcelo H. Ang

Advances in computer vision have brought us to the point where we have the ability to synthesise realistic fake content. Such approaches are seen as a source of disinformation and mistrust, and pose serious concerns to governments around…

Computer Vision and Pattern Recognition · Computer Science 2019-11-20 Tharindu Fernando , Clinton Fookes , Simon Denman , Sridha Sridharan

Face anti-spoofing (FAS) plays a vital role in securing face recognition systems from the presentation attacks (PAs). As more and more realistic PAs with novel types spring up, it is necessary to develop robust algorithms for detecting…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Zitong Yu , Xiaobai Li , Jingang Shi , Zhaoqiang Xia , Guoying Zhao

Partially spoofed audio detection is a challenging task, lying in the need to accurately locate the authenticity of audio at the frame level. To address this issue, we propose a fine-grained partially spoofed audio detection method, namely…

Sound · Computer Science 2023-11-22 Yuankun Xie , Haonan Cheng , Yutian Wang , Long Ye

Deeplearning has been used to solve complex problems in various domains. As it advances, it also creates applications which become a major threat to our privacy, security and even to our Democracy. Such an application which is being…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Rahul U , Ragul M , Raja Vignesh K , Tejeswinee K

Face anti-spoofing (FAS) seeks to discriminate genuine faces from fake ones arising from any type of spoofing attack. Due to the wide varieties of attacks, it is implausible to obtain training data that spans all attack types. We propose to…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Junru Wu , Xiang Yu , Buyu Liu , Zhangyang Wang , Manmohan Chandraker

Generating synthetic fake faces, known as pseudo-fake faces, is an effective way to improve the generalization of DeepFake detection. Existing methods typically generate these faces by blending real or fake faces in spatial domain. While…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Hanzhe Li , Jiaran Zhou , Yuezun Li , Baoyuan Wu , Bin Li , Junyu Dong

Video face swapping is crucial in film and entertainment production, where achieving high fidelity and temporal consistency over long and complex video sequences remains a significant challenge. Inspired by recent advances in…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Zekai Luo , Zongze Du , Zhouhang Zhu , Hao Zhong , Muzhi Zhu , Wen Wang , Yuling Xi , Chenchen Jing , Hao Chen , Chunhua Shen

Face presentation attacks have become an increasingly critical concern when face recognition is widely applied. Many face anti-spoofing methods have been proposed, but most of them ignore the generalization ability to unseen attacks. To…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Rui Shao , Xiangyuan Lan , Pong C. Yuen

Face presentation attack detection (PAD) plays an important role in defending face recognition systems against presentation attacks. The success of PAD largely relies on supervised learning that requires a huge number of labeled data, which…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Usman Muhammad , Mourad Oussalah

In this paper, we introduce MINTIME, a video deepfake detection approach that captures spatial and temporal anomalies and handles instances of multiple people in the same video and variations in face sizes. Previous approaches disregard…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Davide Alessandro Coccomini , Giorgos Kordopatis Zilos , Giuseppe Amato , Roberto Caldelli , Fabrizio Falchi , Symeon Papadopoulos , Claudio Gennaro

Facial recognition has always been a challeng- ing task for computer vision scientists and experts. Despite complexities arising due to variations in camera parameters, illumination and face orientations, significant progress has been made…

Computer Vision and Pattern Recognition · Computer Science 2018-09-11 Saumya Kumaar , Abhinandan Dogra , Abrar Majeedi , Hanan Gani , Ravi M. Vishwanath , S N Omkar

Spectrograms - time-frequency representations of audio signals - have found widespread use in neural network-based spoofing detection. While deep models are trained on the fullband spectrum of the signal, we argue that not all frequency…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-07 Bhusan Chettri , Tomi Kinnunen , Emmanouil Benetos

Facial biometrics has been recently received tremendous attention as a convenient replacement for traditional authentication systems. Consequently, detecting malicious attempts has found great significance, leading to extensive studies in…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Arian Sabaghi , Marzieh Oghbaie , Kooshan Hashemifard , Mohammad Akbari

Currently, the rapid development of computer vision and deep learning has enabled the creation or manipulation of high-fidelity facial images and videos via deep generative approaches. This technology, also known as deepfake, has achieved…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Lixia Ma , Puning Yang , Yuting Xu , Ziming Yang , Peipei Li , Huaibo Huang

This paper investigates long-term face tracking of a specific person given his/her face image in a single frame as a query in a video stream. Through taking advantage of pre-trained deep learning models on big data, a novel system is…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Kunlei Zhang , Elaheh Rashedi , Elaheh Barati , Xue-wen Chen

Face anti-spoofing (FAS) is crucial for protecting facial recognition systems from presentation attacks. Previous methods approached this task as a classification problem, lacking interpretability and reasoning behind the predicted results.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Hongyang Wang , Yichen Shi , Zhuofu Tao , Yuhao Gao , Liepiao Zhang , Xun Lin , Jun Feng , Xiaochen Yuan , Zitong Yu , Xiaochun Cao

As ultra-realistic face forgery techniques emerge, deepfake detection has attracted increasing attention due to security concerns. Many detectors cannot achieve accurate results when detecting unseen manipulations despite excellent…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Zihan Liu , Hanyi Wang , Shilin Wang