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Biometric authentication systems are increasingly being deployed in critical applications, but they remain susceptible to spoofing. Since most of the research efforts focus on modality-specific anti-spoofing techniques, building a unified,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Nidheesh Gorthi , Kartik Thakral , Rishabh Ranjan , Richa Singh , Mayank Vatsa

Face recognition technology has become an integral part of modern security systems and user authentication processes. However, these systems are vulnerable to spoofing attacks and can easily be circumvented. Most prior research in face…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Kartik Narayan , Vishal M. Patel

Face Anti-spoofing gains increased attentions recently in both academic and industrial fields. With the emergence of various CNN based solutions, the multi-modal(RGB, depth and IR) methods based CNN showed better performance than single…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Peng Zhang , Fuhao Zou , Zhiwen Wu , Nengli Dai , Skarpness Mark , Michael Fu , Juan Zhao , Kai Li

In many visual systems, visual tracking often bases on RGB image sequences, in which some targets are invalid in low-light conditions, and tracking performance is thus affected significantly. Introducing other modalities such as depth and…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Chenglong Li , Tianhao Zhu , Lei Liu , Xiaonan Si , Zilin Fan , Sulan Zhai

Recent advancements in domain generalization (DG) for face anti-spoofing (FAS) have garnered considerable attention. Traditional methods have focused on designing learning objectives and additional modules to isolate domain-specific…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Binh M. Le , Simon S. Woo

Advanced manipulation techniques have provided criminals with opportunities to make social panic or gain illicit profits through the generation of deceptive media, such as forged face images. In response, various deepfake detection methods…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Ruiyang Xia , Decheng Liu , Jie Li , Lin Yuan , Nannan Wang , Xinbo Gao

Although existing face anti-spoofing (FAS) methods achieve high accuracy in intra-domain experiments, their effects drop severely in cross-domain scenarios because of poor generalization. Recently, multifarious techniques have been…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Shice Liu , Shitao Lu , Hongyi Xu , Jing Yang , Shouhong Ding , Lizhuang Ma

Recent advancements in deep learning have significantly enhanced content-based retrieval methods, notably through models like CLIP that map images and texts into a shared embedding space. However, these methods often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Nicola Messina , Lucia Vadicamo , Leo Maltese , Claudio Gennaro

Face anti-spoofing (FAS) heavily relies on identifying live/spoof discriminative features to counter face presentation attacks. Recently, we proposed LDCformer to successfully incorporate the Learnable Descriptive Convolution (LDC) into…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Pei-Kai Huanga , Jun-Xiong Chong , Ming-Tsung Hsu , Fang-Yu Hsu , Chiou-Ting Hsu

The RGB-infrared cross-modality person re-identification (ReID) task aims to recognize the images of the same identity between the visible modality and the infrared modality. Existing methods mainly use a two-stream architecture to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Yajun Gao , Tengfei Liang , Yi Jin , Xiaoyan Gu , Wu Liu , Yidong Li , Congyan Lang

Special cameras that provide useful features for face anti-spoofing are desirable, but not always an option. In this work we propose a method to utilize the difference in dynamic appearance between bona fide and spoof samples by creating…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Aleksandr Parkin , Oleg Grinchuk

Face Recognition Systems (FRS) are vulnerable to various attacks performed directly and indirectly. Among these attacks, face morphing attacks are highly potential in deceiving automatic FRS and human observers and indicate a severe…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Jag Mohan Singh , Raghavendra Ramachandra

Gait recognition has emerged as a powerful biometric technique for identifying individuals at a distance without requiring user cooperation. Most existing methods focus primarily on RGB-derived modalities, which fall short in real-world…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Chenye Wang , Qingyuan Cai , Saihui Hou , Aoqi Li , Yongzhen Huang

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

Deepfakes are synthetic media generated using deep generative algorithms and have posed a severe societal and political threat. Apart from facial manipulation and synthetic voice, recently, a novel kind of deepfakes has emerged with either…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Vinaya Sree Katamneni , Ajita Rattani

We propose a method for detecting face swapping and other identity manipulations in single images. Face swapping methods, such as DeepFake, manipulate the face region, aiming to adjust the face to the appearance of its context, while…

Computer Vision and Pattern Recognition · Computer Science 2020-08-28 Yuval Nirkin , Lior Wolf , Yosi Keller , Tal Hassner

Robust features are of vital importance to face spoofing detection, because various situations make feature space extremely complicated to partition. Thus in this paper, two novel and robust features for anti-spoofing are proposed. The…

Computer Vision and Pattern Recognition · Computer Science 2018-03-14 Xiao Song , Xu Zhao , Tianwei Lin

Face Anti-Spoofing (FAS) aims to detect malicious attempts to invade a face recognition system by presenting spoofed faces. State-of-the-art FAS techniques predominantly rely on deep learning models but their cross-domain generalization…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Rizhao Cai , Zitong Yu , Chenqi Kong , Haoliang Li , Changsheng Chen , Yongjian Hu , Alex Kot

Autonomous Vehicles (AVs) increasingly depend on Multi-Sensor Fusion (MSF) to combine complementary modalities such as cameras and LiDAR for robust perception. While this redundancy is intended to safeguard against single-sensor failures,…

Cryptography and Security · Computer Science 2026-04-24 Shahriar Rahman Khan , Raiful Hasan

Anomaly detection is a fundamental problem in data mining field with many real-world applications. A vast majority of existing anomaly detection methods predominately focused on data collected from a single source. In real-world…

Machine Learning · Computer Science 2019-08-13 Yuening Li , Ninghao Liu , Jundong Li , Mengnan Du , Xia Hu