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Current face de-identification methods that replace identifiable cues in the face region with other sacrifices utilities contributing to realism, such as age and gender. To retrieve the damaged realism, we present FLUID (Face…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Jinhyeong Park , Shaheryar Muhammad , Seangmin Lee , Jong Taek Lee , Soon Ki Jung

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

Privacy protection has become a top priority as the proliferation of AI techniques has led to widespread collection and misuse of personal data. Anonymization and visual identity information hiding are two important facial privacy…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Xiao He , Mingrui Zhu , Dongxin Chen , Nannan Wang , Xinbo Gao

Palmprint recognition has emerged as a prominent biometric technology, widely applied in diverse scenarios. Traditional handcrafted methods for palmprint recognition often fall short in representation capability, as they heavily depend on…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Chengrui Gao , Ziyuan Yang , Wei Jia , Lu Leng , Bob Zhang , Andrew Beng Jin Teoh

Palmprint recently shows great potential in recognition applications as it is a privacy-friendly and stable biometric. However, the lack of large-scale public palmprint datasets limits further research and development of palmprint…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Lei Shen , Jianlong Jin , Ruixin Zhang , Huaen Li , Kai Zhao , Yingyi Zhang , Jingyun Zhang , Shouhong Ding , Yang Zhao , Wei Jia

Smartphone-based contactless fingerphoto authentication has become a reliable alternative to traditional contact-based fingerprint biometric systems owing to rapid advances in smartphone camera technology. Despite its convenience,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Hailin Li , Raghavendra Ramachandra , Mohamed Ragab , Soumik Mondal , Yong Kiam Tan , Khin Mi Mi Aung

Training of deep learning models for computer vision requires large image or video datasets from real world. Often, in collecting such datasets, we need to protect the privacy of the people captured in the images or videos, while still…

Computer Vision and Pattern Recognition · Computer Science 2019-02-13 Yuezun Li , Siwei Lyu

In order to utilize identification to the best extent, we need robust and fast algorithms and systems to process the data. Having palmprint as a reliable and unique characteristic of every person, we extract and use its features based on…

Computer Vision and Pattern Recognition · Computer Science 2015-02-13 Shervin Minaee , AmirAli Abdolrashidi

Palm recognition has emerged as a dominant biometric authentication technology in critical infrastructure. These systems operate in either single-modal form, using palmprint or palmvein individually, or dual-modal form, fusing the two…

Cryptography and Security · Computer Science 2026-05-14 Haowen Xu , Tianya Zhao , Xuyu Wang , Lei Ma , Jun Dai , Alexander Wyglinski , Xiaoyan Sun

With the recent success of computer vision and deep learning, remarkable progress has been achieved on automatic personal recognition using vein biometrics. However, collecting large-scale real-world training data for palm vein recognition…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Edwin H. Salazar-Jurado , Ruber Hernández-García , Karina Vilches-Ponce , Ricardo J. Barrientos , Marco Mora , Gaurav Jaswal

With the growing demand for hand hygiene and convenience of use, palmprint recognition with touchless manner made a great development recently, providing an effective solution for person identification. Despite many efforts that have been…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Zhaoqun Li , Xu Liang , Dandan Fan , Jinxing Li , Wei Jia , David Zhang

Manipulation tools that realistically edit images are widely available, making it easy for anyone to create and spread misinformation. In an attempt to fight fake news, forgery detection and localization methods were designed. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Hannes Mareen , Dante Vanden Bussche , Fabrizio Guillaro , Davide Cozzolino , Glenn Van Wallendael , Peter Lambert , Luisa Verdoliva

Generating realistic palmprint (more generally biometric) images has always been an interesting and, at the same time, challenging problem. Classical statistical models fail to generate realistic-looking palmprint images, as they are not…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Shervin Minaee , Mehdi Minaei , Amirali Abdolrashidi

Biometric-based identification has drawn a lot of attention in the recent years. Among all biometrics, palmprint is known to possess a rich set of features. In this paper we have proposed to use DCT-based features in parallel with…

Computer Vision and Pattern Recognition · Computer Science 2015-11-30 Shervin Minaee , AmirAli Abdolrashidi

Palmprint recognition is widely used in biometric systems, yet real-world performance often degrades due to feature distribution shifts caused by heterogeneous deployment conditions. Most deep palmprint models assume a closed and stationary…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Chenke Zhang , Ziyuan Yang , Licheng Yan , Shuyi Li , Andrew Beng Jin Teoh , Bob Zhang , Yi Zhang

Because of the explosive growth of face photos as well as their widespread dissemination and easy accessibility in social media, the security and privacy of personal identity information becomes an unprecedented challenge. Meanwhile, the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-03 Yunqian Wen , Li Song , Bo Liu , Ming Ding , Rong Xie

Palm vein recognition is an emerging biometric technology that offers enhanced security and privacy. However, acquiring sufficient palm vein data for training deep learning-based recognition models is challenging due to the high costs of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Sheng Shang , Chenglong Zhao , Ruixin Zhang , Jianlong Jin , Jingyun Zhang , Rizen Guo , Shouhong Ding , Yunsheng Wu , Yang Zhao , Wei Jia

Diffusion models have shown exceptional scaling properties in the image synthesis domain, and initial attempts have shown similar benefits for applying diffusion to unconditional text synthesis. Denoising diffusion models attempt to…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-17 Matthew Baas , Kevin Eloff , Herman Kamper

With the growing importance of personal identification and authentication in todays highly advanced world where most business and personal tasks are being replaced by electronic means, the need for a technology that is able to uniquely…

Cryptography and Security · Computer Science 2009-12-04 Li Fang , Maylor K. H. Leung , Cheng Shao Chian

Generative techniques for image anonymization have great potential to generate datasets that protect the privacy of those depicted in the images, while achieving high data fidelity and utility. Existing methods have focused extensively on…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Luca Piano , Pietro Basci , Fabrizio Lamberti , Lia Morra