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Face de-identification in videos is a challenging task in the domain of computer vision, primarily used in privacy-preserving applications. Despite the considerable progress achieved through generative vision models, there remain multiple…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Anirban Mukherjee , Monjoy Narayan Choudhury , Dinesh Babu Jayagopi

Face editing methods, essential for tasks like virtual avatars, digital human synthesis and identity preservation, have traditionally been built upon GAN-based techniques, while recent focus has shifted to diffusion-based models due to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Mengting Wei , Tuomas Varanka , Yante Li , Xingxun Jiang , Huai-Qian Khor , Guoying Zhao

Security monitoring via ubiquitous cameras and their more extended in intelligent buildings stand to gain from advances in signal processing and machine learning. While these innovative and ground-breaking applications can be considered as…

Cryptography and Security · Computer Science 2026-05-06 Mehmet Yamac , Mete Ahishali , Nikolaos Passalis , Jenni Raitoharju , Bulent Sankur , Moncef Gabbouj

While recent research has progressively overcome the low-resolution constraint of one-shot face video re-enactment with the help of StyleGAN's high-fidelity portrait generation, these approaches rely on at least one of the following:…

Computer Vision and Pattern Recognition · Computer Science 2023-02-16 Trevine Oorloff , Yaser Yacoob

Besides its linguistic content, our speech is rich in biometric information that can be inferred by classifiers. Learning privacy-preserving representations for speech signals enables downstream tasks without sharing unnecessary, private…

Sound · Computer Science 2021-06-18 Dimitrios Stoidis , Andrea Cavallaro

Occluded person re-identification (Re-ID) is a challenging task as persons are frequently occluded by various obstacles or other persons, especially in the crowd scenario. To address these issues, we propose a novel end-to-end Part-Aware…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Yulin Li , Jianfeng He , Tianzhu Zhang , Xiang Liu , Yongdong Zhang , Feng Wu

In an era where personal photos are easily leaked and collected, face de-identification is a crucial method for protecting identity privacy. However, current face de-identification techniques face challenges in preserving attribute details…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Mingrui Zhu , Dongxin Chen , Xin Wei , Nannan Wang , Xinbo Gao

The great advancements of generative adversarial networks and face recognition models in computer vision have made it possible to swap identities on images from single sources. Although a lot of studies seems to have proposed almost…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Kaede Shiohara , Xingchao Yang , Takafumi Taketomi

Face aging or de-aging with generative AI has gained significant attention for its applications in such fields like forensics, security, and media. However, most state of the art methods rely on conditional Generative Adversarial Networks…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Luis S. Luevano , Pavel Korshunov , Sebastien Marcel

Online person re-identification services face privacy breaches from potential data leakage and recovery attacks, exposing cloud-stored images to malicious attackers and triggering public concern. The privacy protection of pedestrian images…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Delong Zhang , Yi-Xing Peng , Xiao-Ming Wu , Ancong Wu , Wei-Shi Zheng

Reversible face anonymization, unlike traditional face pixelization, seeks to replace sensitive identity information in facial images with synthesized alternatives, preserving privacy without sacrificing image clarity. Traditional methods,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Haoxin Yang , Xuemiao Xu , Cheng Xu , Huaidong Zhang , Jing Qin , Yi Wang , Pheng-Ann Heng , Shengfeng He

Secure aggregation is a foundational building block of privacy-preserving learning, yet achieving robustness under adversarial behavior remains challenging. Modern systems increasingly adopt the shuffle model of differential privacy…

Cryptography and Security · Computer Science 2026-03-04 Yuhang Li , Yajie Wang , Xiangyun Tang , Peng Jiang , Yu-an Tan , Liehuang Zhu

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

We present RHODE, a novel system that enables privacy-preserving training of and prediction on Recurrent Neural Networks (RNNs) in a cross-silo federated learning setting by relying on multiparty homomorphic encryption. RHODE preserves the…

Cryptography and Security · Computer Science 2023-05-04 Sinem Sav , Abdulrahman Diaa , Apostolos Pyrgelis , Jean-Philippe Bossuat , Jean-Pierre Hubaux

Face anonymization aims to conceal identity information while preserving non-identity attributes. Mainstream diffusion models rely on inference-time interventions such as negative guidance or energy-based optimization, which are applied…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Haoxin Yang , Yihong Lin , Jingdan Kang , Xuemiao Xu , Yue Li , Cheng Xu , Shengfeng He

Multi-modal retrieval-augmented generation (MRAG) systems retrieve visual evidence from large image corpora to ground the responses of large multi-modal models, yet the retrieved images frequently contain human faces whose identities…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Zehua Cheng , Wei Dai , Jiahao Sun

Reversible data hiding (RDH) is one special type of information hiding, by which the host sequence as well as the embedded data can be both restored from the marked sequence without loss. Beside media annotation and integrity…

Computer Vision and Pattern Recognition · Computer Science 2018-11-08 Dongdong Hou , Weiming Zhang , Jiayang Liu , Siyan Zhou , Dongdong Chen , Nenghai Yu

GAN inversion is indispensable for applying the powerful editability of GAN to real images. However, existing methods invert video frames individually often leading to undesired inconsistent results over time. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Yangyang Xu , Shengfeng He , Kwan-Yee K. Wong , Ping Luo

We propose a method for face de-identification that enables fully automatic video modification at high frame rates. The goal is to maximally decorrelate the identity, while having the perception (pose, illumination and expression) fixed. We…

Machine Learning · Computer Science 2019-11-20 Oran Gafni , Lior Wolf , Yaniv Taigman

Lensless cameras, innovatively replacing traditional lenses for ultra-thin, flat optics, encode light directly onto sensors, producing images that are not immediately recognizable. This compact, lightweight, and cost-effective imaging…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Xin Cai , Hailong Zhang , Chenchen Wang , Wentao Liu , Jinwei Gu , Tianfan Xue