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CLIP has shown impressive results in aligning images and texts at scale. However, its ability to capture detailed visual features remains limited because CLIP matches images and texts at a global level. To address this issue, we propose…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Rui Xiao , Sanghwan Kim , Mariana-Iuliana Georgescu , Zeynep Akata , Stephan Alaniz

Market research indicates that fingerprints are still the most popular biometric modality for personal authentication. Even with the onset of new modalities (e.g. vein matching), many applications within different domains (e-ID, banking,…

Computer Vision and Pattern Recognition · Computer Science 2015-05-21 Mehmet Kayaoglu , Berkay Topcu , Umut Uludag

Latent fingerprints are important for identifying criminal suspects. However, recognizing a latent fingerprint in a collection of reference fingerprints remains a challenge. Most, if not all, of existing methods would extract representation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Yanming Zhu , Xuefei Yin , Xiuping Jia , Jiankun Hu

Federated Learning (FL) enables collaborative model training across distributed devices while safeguarding data and user privacy. However, FL remains susceptible to privacy threats that can compromise data via direct means. That said,…

Cryptography and Security · Computer Science 2025-12-12 Md Nahid Hasan Shuvo , Moinul Hossain , Anik Mallik , Jeffrey Twigg , Fikadu Dagefu

Federated Learning (FL) has attracted much interest due to the significant advantages it brings to training deep neural network (DNN) models. However, since communications and computation resources are limited, training DNN models in FL…

Machine Learning · Computer Science 2026-03-17 Ran Greidi , Kobi Cohen

Dense registration of fingerprints is a challenging task due to elastic skin distortion, low image quality, and self-similarity of ridge pattern. To overcome the limitation of handcraft features, we propose to train an end-to-end network to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Zhe Cui , Jianjiang Feng , Jie Zhou

Fingerprint recognition stands as a pivotal component of biometric technology, with diverse applications from identity verification to advanced search tools. In this paper, we propose a unique method for deriving robust fingerprint…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Ekta Gavas , Kaustubh Olpadkar , Anoop Namboodiri

Biometrics-related research has been accelerated significantly by deep learning technology. However, there are limited open-source resources to help researchers evaluate their deep learning-based biometrics algorithms efficiently,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-04 Xiang Xu , Ioannis A. Kakadiaris

Dense and versatile image representations underpin the success of virtually all computer vision applications. However, state-of-the-art networks, such as transformers, produce low-resolution feature grids, which are suboptimal for dense…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Nikita Araslanov , Anna Sonnweber , Daniel Cremers

We present FLARE, a feed-forward model designed to infer high-quality camera poses and 3D geometry from uncalibrated sparse-view images (i.e., as few as 2-8 inputs), which is a challenging yet practical setting in real-world applications.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Shangzhan Zhang , Jianyuan Wang , Yinghao Xu , Nan Xue , Christian Rupprecht , Xiaowei Zhou , Yujun Shen , Gordon Wetzstein

We present a minimalistic but effective neural network that computes dense facial correspondences in highly unconstrained RGB images. Our network learns a per-pixel flow and a matchability mask between 2D input photographs of a person and…

Computer Vision and Pattern Recognition · Computer Science 2017-09-05 Ronald Yu , Shunsuke Saito , Haoxiang Li , Duygu Ceylan , Hao Li

In response to the rapid growth of Internet of Things (IoT) devices and rising security risks, Radio Frequency Fingerprint (RFF) has become key for device identification and authentication. However, various changing factors - beyond the RFF…

Signal Processing · Electrical Eng. & Systems 2025-08-19 Yezhuo Zhang , Zinan Zhou , Guangyu Li , Xuanpeng Li

Fingerprints are the most widely deployed form of biometric identification. No two individuals share the same fingerprint because they have unique biometric identifiers. This paper presents an efficient fingerprint verification algorithm…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Rahul Kumar Jaiswal , Gaurav Saxena

Fingerprint classification is an effective technique for reducing the candidate numbers of fingerprints in the stage of matching in automatic fingerprint identification system (AFIS). In recent years, deep learning is an emerging technology…

Computer Vision and Pattern Recognition · Computer Science 2014-09-19 Ruxin Wang , Congying Han , Yanping Wu , Tiande Guo

Fingerprint recognition has been utilized for cellphone authentication, airport security and beyond. Many different features and algorithms have been proposed to improve fingerprint recognition. In this paper, we propose an end-to-end deep…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Shervin Minaee , Elham Azimi , Amirali Abdolrashidi

Current deep learning (DL)-based palmprint verification models rely on centralized training with large datasets, which raises significant privacy concerns due to biometric data's sensitive and immutable nature. Federated learning~(FL), a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-10 Ziyuan Yang , Yingyu Chen , Chengrui Gao , Andrew Beng Jin Teoh , Bob Zhang , Yi Zhang

Fingerprint feature extraction is a task that is solved using either a global or a local representation. State-of-the-art global approaches use heavy deep learning models to process the full fingerprint image at once, which makes the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-09 Saraansh Tandon , Anoop Namboodiri

Contactless fingerprint has gained lots of attention in recent fingerprint studies. However, most existing contactless fingerprint algorithms treat contactless fingerprints as 2D plain fingerprints, and still utilize traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Yuwei Jia , Siyang Zheng , Fei Feng , Zhe Cui , Fei Su

Latent fingerprint enhancement is an essential pre-processing step for latent fingerprint identification. Most latent fingerprint enhancement methods try to restore corrupted gray ridges/valleys. In this paper, we propose a new method that…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Yanming Zhu , Xuefei Yin , Jiankun Hu

The effectiveness of fingerprint-based authentication systems on good quality fingerprints is established long back. However, the performance of standard fingerprint matching systems on noisy and poor quality fingerprints is far from…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Indu Joshi , Ayush Utkarsh , Riya Kothari , Vinod K Kurmi , Antitza Dantcheva , Sumantra Dutta Roy , Prem Kumar Kalra