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Generative models have enabled the creation of contents that are indistinguishable from those taken from nature. Open-source development of such models raised concerns about the risks of their misuse for malicious purposes. One potential…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Guangyu Nie , Changhoon Kim , Yezhou Yang , Yi Ren

The ever-increasing use of synthetically generated content in different sectors of our everyday life, one for all media information, poses a strong need for deepfake detection tools in order to avoid the proliferation of altered messages.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Andrea Ciamarra , Roberto Caldelli , Federico Becattini , Lorenzo Seidenari , Alberto Del Bimbo

In light of recent advancements in generative AI models, it has become essential to distinguish genuine content from AI-generated one to prevent the malicious usage of fake materials as authentic ones and vice versa. Various techniques have…

Computer Vision and Pattern Recognition · Computer Science 2024-02-15 Mehrdad Saberi , Vinu Sankar Sadasivan , Keivan Rezaei , Aounon Kumar , Atoosa Chegini , Wenxiao Wang , Soheil Feizi

As machine- and AI-generated content proliferates, protecting the intellectual property of generative models has become imperative, yet verifying data ownership poses formidable challenges, particularly in cases of unauthorized reuse of…

Machine Learning · Computer Science 2024-02-28 Aditya Desu , Xuanli He , Qiongkai Xu , Wei Lu

Reflective flare is a phenomenon that occurs when light reflects inside lenses, causing bright spots or a "ghosting effect" in photos, which can impact their quality. Eliminating reflective flare is highly desirable but challenging. Many…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Yuekun Dai , Yihang Luo , Shangchen Zhou , Chongyi Li , Chen Change Loy

With the rapid progress of generation technology, it has become necessary to attribute the origin of fake images. Existing works on fake image attribution perform multi-class classification on several Generative Adversarial Network (GAN)…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Tianyun Yang , Ziyao Huang , Juan Cao , Lei Li , Xirong Li

Deepfake detection refers to detecting artificially generated or edited faces in images or videos, which plays an essential role in visual information security. Despite promising progress in recent years, Deepfake detection remains a…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Chunlei Peng , Huiqing Guo , Decheng Liu , Nannan Wang , Ruimin Hu , Xinbo Gao

The advancement in numerous generative models has a two-fold effect: a simple and easy generation of realistic synthesized images, but also an increased risk of malicious abuse of those images. Thus, it is important to develop a generalized…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Yonghyun Jeong , Doyeon Kim , Seungjai Min , Seongho Joe , Youngjune Gwon , Jongwon Choi

Watermarking combines an imperceptible change to an input image that will trigger a detector, to assert provenance and protect intellectual property. The literature has shown great interest in attacks on watermarking schemes: attackers are…

Cryptography and Security · Computer Science 2026-05-19 Maria Bulychev , Neil G. Marchant , Benjamin I. P. Rubinstein

During the investigation of criminal activity when evidence is available, the issue at hand is determining the credibility of the video and ascertaining that the video is real. Today, one way to authenticate the footage is to identify the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Akash Nagaraj , Mukund Sood , Vivek Kapoor , Yash Mathur , Bishesh Sinha

We present a hardware-integrated security framework for LiFi networks through device fingerprint extraction within the IEEE 802.15.7 protocol. Our Optic Fingerprint (OFP) model utilizes inherent LED nonlinearities to generate…

Signal Processing · Electrical Eng. & Systems 2025-04-18 Ziqi Liu , Xuanbang Chen , Xun Zhang

Image style transfer is an underdetermined problem, where a large number of solutions can satisfy the same constraint (the content and style). Although there have been some efforts to improve the diversity of style transfer by introducing…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Zhizhong Wang , Lei Zhao , Haibo Chen , Lihong Qiu , Qihang Mo , Sihuan Lin , Wei Xing , Dongming Lu

Fingerprint individuality refers to the extent of uniqueness of fingerprints and is the main criteria for deciding between a match versus nonmatch in forensic testimony. Often, prints are subject to varying levels of noise, for example, the…

Applications · Statistics 2014-11-06 Sarat C. Dass , Chae Young Lim , Tapabrata Maiti

Deepfake detectors are typically trained on large sets of pristine and generated images, resulting in limited generalization capacity; they excel at identifying deepfakes created through methods encountered during training but struggle with…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Davide Alessandro Coccomini , Roberto Caldelli , Claudio Gennaro , Giuseppe Fiameni , Giuseppe Amato , Fabrizio Falchi

Bias in computer vision systems can perpetuate or even amplify discrimination against certain populations. Considering that bias is often introduced by biased visual datasets, many recent research efforts focus on training fair models using…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Ioannis Sarridis , Christos Koutlis , Symeon Papadopoulos , Christos Diou

Anti-facial recognition (AFR) image filters alter images in ways that are subtle to people but blinding to computer vision. Yet, despite widespread interest in these technologies to subvert surveillance, users rarely use them in practice --…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Jacob Lagogiannis , William Agnew , Rosa I. Arriaga , Sauvik Das

Missingness, or the absence of features from an input, is a concept fundamental to many model debugging tools. However, in computer vision, pixels cannot simply be removed from an image. One thus tends to resort to heuristics such as…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Saachi Jain , Hadi Salman , Eric Wong , Pengchuan Zhang , Vibhav Vineet , Sai Vemprala , Aleksander Madry

The prevalence of digital sensors, such as digital cameras and mobile phones, simplifies the acquisition of photos. Digital sensors, however, suffer from producing Moire when photographing objects having complex textures, which deteriorates…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Xi Cheng , Zhenyong Fu , Jian Yang

The world is abundant with diverse materials, each possessing unique surface appearances that play a crucial role in our daily perception and understanding of their properties. Despite advancements in technology enabling the capture and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Jiri Filip , Filip Dechterenko , Filipp Schmidt , Jiri Lukavsky , Veronika Vilimovska , Jan Kotera , Roland W. Fleming

Creating high-quality and realistic images is now possible thanks to the impressive advancements in image generation. A description in natural language of your desired output is all you need to obtain breathtaking results. However, as the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Giuseppe Cartella , Vittorio Cuculo , Marcella Cornia , Rita Cucchiara