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Related papers: SynCoLFinGer: Synthetic Contactless Fingerprint Ge…

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Biometric systems based on iris recognition are currently being used in border control applications and mobile devices. However, research in iris recognition is stymied by various factors such as limited datasets of bonafide irides and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Shivangi Yadav , Arun Ross

Face verification has come into increasing focus in various applications including the European Entry/Exit System, which integrates face recognition mechanisms. At the same time, the rapid advancement of biometric authentication requires…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Haoyu Zhang , Marcel Grimmer , Raghavendra Ramachandra , Kiran Raja , Christoph Busch

Privacy issue is a main concern in developing face recognition techniques. Although synthetic face images can partially mitigate potential legal risks while maintaining effective face recognition (FR) performance, FR models trained by face…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Zhonglin Sun , Siyang Song , Ioannis Patras , Georgios Tzimiropoulos

Facial expression datasets remain limited in scale due to the subjectivity of annotations and the labor-intensive nature of data collection. This limitation poses a significant challenge for developing modern deep learning-based facial…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Xilin He , Cheng Luo , Xiaole Xian , Bing Li , Muhammad Haris Khan , Zongyuan Ge , Weicheng Xie , Siyang Song , Linlin Shen , Bernard Ghanem , Xiangyu Yue

With the rapid proliferation of wireless and Internet of Things (IoT) devices, ensuring secure and reliable device identification has become a significant challenge. Traditional security techniques, such as IP or MAC address-based…

Information Theory · Computer Science 2026-05-26 Liu Yang , Qiang Li , Xiaoyang Ren

Although secular, handwritten signature is one of the most reliable biometric methods used by most countries. In the last ten years, the application of technology for verification of handwritten signatures has evolved strongly, including…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Celso A. M. Lopes Junior , Matheus Henrique M. da Silva , Byron Leite Dantas Bezerra , Bruno Jose Torres Fernandes , Donato Impedovo

Identification of suspects based on partial and smudged fingerprints, commonly referred to as fingermarks or latent fingerprints, presents a significant challenge in the field of fingerprint recognition. Although fixed-length embeddings…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Abdul Wahab , Tariq Mahmood Khan , Shahzaib Iqbal , Bandar AlShammari , Bandar Alhaqbani , Imran Razzak

One of the open issues in fingerprint verification is the lack of robustness against image-quality degradation. Poor-quality images result in spurious and missing features, thus degrading the performance of the overall system. Therefore, it…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Fernando Alonso-Fernandez , Julian Fierrez , Javier Ortega-Garcia , Joaquin Gonzalez-Rodriguez , Hartwig Fronthaler , Klaus Kollreider , Josef Bigun

This paper presents G-MSGINet, a unified and efficient framework for robust contactless fingerprint recognition that jointly performs minutiae localization and identity embedding directly from raw input images. Existing approaches rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-05-15 Santhoshkumar Peddi , Soham Bandyopadhyay , Debasis Samanta

Camera-based photoplethysmography (PPG) obtained from smartphones has shown great promise for personalized healthcare and secure authentication. This paper presents a multimodal biometric system that integrates PPG signals extracted from…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Xue Xian Zheng , M. M. Ur Rahma , Bilal Taha , Mudassir Masood , Dimitrios Hatzinakos , Tareq Al-Naffouri

The rapid advancement of photorealistic generators has reached a critical juncture where the discrepancy between authentic and manipulated images is increasingly indistinguishable. Thus, benchmarking and advancing techniques detecting…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Yaning Zhang , Zitong Yu , Tianyi Wang , Xiaobin Huang , Linlin Shen , Zan Gao , Jianfeng Ren

Deep neural networks (DNNs) are extensively employed in a wide range of application scenarios. Generally, training a commercially viable neural network requires significant amounts of data and computing resources, and it is easy for…

Cryptography and Security · Computer Science 2023-12-27 Huali Ren , Anli Yan , Xiaojun Ren , Pei-Gen Ye , Chong-zhi Gao , Zhili Zhou , Jin Li

Human-centered data collection is typically costly and implicates issues of privacy. Various solutions have been proposed in the literature to reduce this cost, such as crowdsourced data collection, or the use of semi-supervised algorithms.…

Signal Processing · Electrical Eng. & Systems 2021-05-07 Mohammad Nabati , Hojjat Navidan , Reza Shahbazian , Seyed Ali Ghorashi , David Windridge

We report the first entanglement generation experiment using an on-chip slow light device. With highly efficient spontaneous four-wave mixing enhanced by the slow light effect in a coupled resonator optical waveguide based on a silicon…

Quantum Physics · Physics 2014-01-30 Hiroki Takesue , Nobuyuki Matsuda , Eiichi Kuramochi , Masaya Notomi

An experimental study on detecting synthetic face images is presented. We collected a dataset, called FF5, of five fake face image generators, including recent diffusion models. We find that a simple model trained on a specific image…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Nela Petrzelkova , Jan Cech

Generating synthetic images is an art which emulates the natural process of image generation in a closest possible manner. In this work, we exploit such a framework for data generation in handwritten domain. We render synthetic data using…

Computer Vision and Pattern Recognition · Computer Science 2016-08-16 Praveen Krishnan , C. V. Jawahar

Many vision based applications have used fingertips to track or manipulate gestures in their applications. Gesture identification is a natural way to pass the signals to the machine, as the human express its feelings most of the time with…

Computer Vision and Pattern Recognition · Computer Science 2012-12-04 J. L. Raheja , Karen Das , Ankit Chaudhary

Deep generative models have various content creation applications such as graphic design, e-commerce, and virtual Try-on. However, current works mainly focus on synthesizing realistic visual outputs, often ignoring other sensory modalities,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Ruihan Gao , Wenzhen Yuan , Jun-Yan Zhu

Analyzing medical data to find abnormalities is a time-consuming and costly task, particularly for rare abnormalities, requiring tremendous efforts from medical experts. Artificial intelligence has become a popular tool for the automatic…

Cultural heritage preservation increasingly demands non-invasive digital methods for painting restoration, yet identifying and restoring fine craquelure patterns from complex brushstrokes remains challenging due to scarce pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Jana Cuch-Guillén , Antonio Agudo , Raül Pérez-Gonzalo