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We study the problem of fingerprint presentation attack detection (PAD) under unknown PA materials not seen during PAD training. A dataset of 5,743 bonafide and 4,912 PA images of 12 different materials is used to evaluate a…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Tarang Chugh , Anil K. Jain

The success of deep learning has enabled advances in multimodal tasks that require non-trivial fusion of multiple input domains. Although multimodal models have shown potential in many problems, their increased complexity makes them more…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Matthew Walmer , Karan Sikka , Indranil Sur , Abhinav Shrivastava , Susmit Jha

Today, models capable of working with various modalities simultaneously in a chat format are gaining increasing popularity. Despite this, there is an issue of potential attacks on these models, especially considering that many of them…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Viacheslav Iablochnikov , Alexander Rogachev

The rapid emergence of multimodal deepfakes (visual and auditory content are manipulated in concert) undermines the reliability of existing detectors that rely solely on modality-specific artifacts or cross-modal inconsistencies. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Yuxuan Du , Zhendong Wang , Yuhao Luo , Caiyong Piao , Zhiyuan Yan , Hao Li , Li Yuan

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

Morphing attack detection has become an essential component of face recognition systems for ensuring a reliable verification scenario. In this paper, we present a multimodal learning approach that can provide a textual description of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Sushrut Patwardhan , Raghavendra Ramachandra , Sushma Venkatesh

Multimodal Model Editing (MMED) aims to correct erroneous knowledge in multimodal models. Existing evaluation methods, adapted from textual model editing, overstate success by relying on low-similarity or random inputs, obscure overfitting.…

Machine Learning · Computer Science 2025-11-18 Xiaoqi Han , Ru Li , Ran Yi , Hongye Tan , Zhuomin Liang , Víctor Gutiérrez-Basulto , Jeff Z. Pan

With the development of presentation attacks, Automated Fingerprint Recognition Systems(AFRSs) are vulnerable to presentation attack. Thus, numerous methods of presentation attack detection(PAD) have been proposed to ensure the normal…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Haozhe Liu , Wentian Zhang , Guojie Liu , Feng Liu

Despite extensive alignment efforts, Large Vision-Language Models (LVLMs) remain vulnerable to jailbreak attacks, posing serious safety risks. To address this, existing detection methods either learn attack-specific parameters, which…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Shuang Liang , Zhihao Xu , Jialing Tao , Hui Xue , Xiting Wang

Tracking multiple objects in a continuous video stream is crucial for many computer vision tasks. It involves detecting and associating objects with their respective identities across successive frames. Despite significant progress made in…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jiahuan Long , Tingsong Jiang , Wen Yao , Shuai Jia , Weijia Zhang , Weien Zhou , Chao Ma , Xiaoqian Chen

Facial recognition systems have become an integral part of the modern world. These methods accomplish the task of human identification in an automatic, fast, and non-interfering way. Past research has uncovered high vulnerability to simple…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Moritz Finke , Alexandra Dmitrienko

When compared to unimodal systems, multimodal biometric systems have several advantages, including lower error rate, higher accuracy, and larger population coverage. However, multimodal systems have an increased demand for integrity and…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Veeru Talreja , Matthew Valenti , Nasser Nasrabadi

Multimodal pretrained models are vulnerable to backdoor attacks, yet most existing methods rely on visual or multimodal triggers, which are impractical since visually embedded triggers rarely occur in real-world data. To overcome this…

Cryptography and Security · Computer Science 2026-04-08 Yiyang Zhang , Chaojian Yu , Ziming Hong , Yuanjie Shao , Qinmu Peng , Tongliang Liu , Xinge You

Short video platforms have become important channels for news dissemination, offering a highly engaging and immediate way for users to access current events and share information. However, these platforms have also emerged as significant…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Weihao Zhong , Yinhao Xiao , Minghui Xu , Xiuzhen Cheng

Ear recognition system has been widely studied whereas there are just a few ear presentation attack detection methods for ear recognition systems, consequently, there is no publicly available ear presentation attack detection (PAD)…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Jalil Nourmohammadi Khiarak

Facial verification systems are vulnerable to poisoning attacks that make use of multiple-identity images (MIIs)---face images stored in a database that resemble multiple persons, such that novel images of any of the constituent persons are…

Computer Vision and Pattern Recognition · Computer Science 2019-06-21 Jerone T. A. Andrews , Thomas Tanay , Lewis D. Griffin

Anomaly detection-based spoof attack detection is a recent development in face Presentation Attack Detection (fPAD), where a spoof detector is learned using only non-attacked images of users. These detectors are of practical importance as…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Yashasvi Baweja , Poojan Oza , Pramuditha Perera , Vishal M. Patel

Large vision-language models increasingly rely on long-context modeling to reason over documents, hour-level videos, and long-horizon agent trajectories, requiring them to locate relevant evidence across interleaved text and images. Prior…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Aaron Branson Cigres Li , Zhaowei Wang , Yu Zhao , Yiming Du , Haobo Li , Xiyu Ren , Ginny Wong , Simon See , Lishu Luo , Haodong Duan , Pasquale Minervini , Yangqiu Song

Multimodal object detection has shown promise in remote sensing. However, multimodal data frequently encounter the problem of low-quality, wherein the modalities lack strict cell-to-cell alignment, leading to mismatch between different…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Hafsa El Hafyani , Bastien Pasdeloup , Camille Yver , Pierre Romenteau

The rapid advancement of AI-generated multimodal video-audio content has raised significant concerns regarding information security and content authenticity. Existing synthetic video datasets predominantly focus on the visual modality…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Mengxue Hu , Yunfeng Diao , Changtao Miao , Zhiqing Guo , Jianshu Li , Zhe Li , Joey Tianyi Zhou
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