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Iris recognition technology, used to identify individuals by photographing the iris of their eye, has become popular in security applications because of its ease of use, accuracy, and safety in controlling access to high-security areas.…

Artificial Intelligence · Computer Science 2010-07-05 Ujwalla Gawande , Mukesh Zaveri , Avichal Kapur

Compared to contact fingerprint images, contactless fingerprint images exhibit four distinct characteristics: (1) they contain less noise; (2) they have fewer discontinuities in ridge patterns; (3) the ridge-valley pattern is less distinct;…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Mahrukh Siddiqui , Shahzaib Iqbal , Bandar AlShammari , Bandar Alhaqbani , Tariq M. Khan , Imran Razzak

Single Image Super-Resolution (SISR) aims to recover a high-resolution image from a given low-resolution version of it. Video Super Resolution (VSR) targets series of given images, aiming to fuse them to create a higher resolution outcome.…

Image and Video Processing · Electrical Eng. & Systems 2019-10-02 Alon Brifman , Yaniv Romano , Michael Elad

Biometric identification is a reliable method to verify individuals based on their unique physical or behavioral traits, offering a secure alternative to traditional methods like passwords or PINs. This study focuses on ear biometric…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Youssef Mohamed , Zeyad Youssef , Ahmed Heakl , Ahmed Zaky

We present BioMetricNet: a novel framework for deep unconstrained face verification which learns a regularized metric to compare facial features. Differently from popular methods such as FaceNet, the proposed approach does not impose any…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Arslan Ali , Matteo Testa , Tiziano Bianchi , Enrico Magli

This paper delivers a new database of iris images collected in visible light using a mobile phone's camera and presents results of experiments involving existing commercial and open-source iris recognition methods, namely: IriCore, VeriEye,…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Mateusz Trokielewicz

Single image super-resolution (SISR) is a very popular topic nowadays, which has both research value and practical value. In daily life, we crop a large image into sub-images to do super-resolution and then merge them together. Although…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Junyu , Wang , Rong Song

Person re-identification (ReID) across aerial and ground views at extreme far distances introduces a distinct operating regime where severe resolution degradation, extreme viewpoint changes, unstable motion cues, and clothing variation…

The ability to resolve detail in the object that is being imaged, named by resolution, is the core parameter of an imaging system. Super-resolution is a class of techniques that can enhance the resolution of an imaging system and even…

Data Structures and Algorithms · Computer Science 2022-10-13 Yaonan Jin , Daogao Liu , Zhao Song

Monocular depth estimation is a crucial task to measure distance relative to a camera, which is important for applications, such as robot navigation and self-driving. Traditional frame-based methods suffer from performance drops due to the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Tianbo Pan , Zidong Cao , Lin Wang

With the development of high-resolution fingerprint scanners, high-resolution fingerprint-based biometric recognition has received increasing attention in recent years. This paper presents a pore feature-based approach for biometric…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Vijay Anand , Vivek Kanhangad

Conventional super-resolution methods suffer from two drawbacks: substantial computational cost in upscaling an entire large image, and the introduction of extraneous or potentially detrimental information for downstream computer vision…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Tianyi Zhang , Kishore Kasichainula , Yaoxin Zhuo , Baoxin Li , Jae-sun Seo , Yu Cao

Face Super-Resolution (SR) is a domain-specific super-resolution problem. The specific facial prior knowledge could be leveraged for better super-resolving face images. We present a novel deep end-to-end trainable Face Super-Resolution…

Computer Vision and Pattern Recognition · Computer Science 2017-11-30 Yu Chen , Ying Tai , Xiaoming Liu , Chunhua Shen , Jian Yang

Face detection has achieved significant progress in recent years. However, high performance face detection still remains a very challenging problem, especially when there exists many tiny faces. In this paper, we present a single-shot…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Shifeng Zhang , Cheng Chi , Zhen Lei , Stan Z. Li

The recent pandemic emergency raised many challenges regarding the countermeasures aimed at containing the virus spread, and constraining the minimum distance between people resulted in one of the most effective strategies. Thus, the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-02 Alessio Mingozzi , Andrea Conti , Filippo Aleotti , Matteo Poggi , Stefano Mattoccia

Benefiting from the significant advancements in text-to-image diffusion models, research in personalized image generation, particularly customized portrait generation, has also made great strides recently. However, existing methods either…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Benxiang Zhai , Yifang Xu , Guofeng Zhang , Yang Li , Sidan Du

Virtual applications through mobile platforms are one of the most critical and ever-growing fields in AI, where ubiquitous and real-time person authentication has become critical after the breakthrough of all services provided via mobile…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Fernando Alonso-Fernandez , Javier Barrachina , Kevin Hernandez-Diaz , Josef Bigun

Image Super-Resolution (SR) techniques improve visual quality by enhancing the spatial resolution of images. Quality evaluation metrics play a critical role in comparing and optimizing SR algorithms, but current metrics achieve only limited…

Image and Video Processing · Electrical Eng. & Systems 2020-12-17 Tiesong Zhao , Yuting Lin , Yiwen Xu , Weiling Chen , Zhou Wang

Iris Recognition (IR) is one of the market's most reliable and accurate biometric systems. Today, it is challenging to build NIR-capturing devices under the premise of hardware price reduction. Commercial NIR sensors are protected from…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Daniel P. Benalcazar , Juan E. Tapia , Mauricio Vasquez , Leonardo Causa , Enrique Lopez Droguett , Christoph Busch

Remote sensing image super-resolution (RSISR) is a crucial task in remote sensing image processing, aiming to reconstruct high-resolution (HR) images from their low-resolution (LR) counterparts. Despite the growing number of RSISR methods…

Image and Video Processing · Electrical Eng. & Systems 2025-11-04 Yunliang Qi , Meng Lou , Yimin Liu , Lu Li , Zhen Yang , Wen Nie