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Content based image retrieval, a technique which uses visual contents of image to search images from large scale image databases according to users' interests. This paper provides a comprehensive survey on recent technology used in the area…

Information Retrieval · Computer Science 2014-02-21 D. Johnvictor , G. Selvavinayagam

Bottom-up human pose estimation methods have difficulties in predicting the correct pose for small persons due to challenges in scale variation. In this paper, we present HigherHRNet: a novel bottom-up human pose estimation method for…

Computer Vision and Pattern Recognition · Computer Science 2020-03-13 Bowen Cheng , Bin Xiao , Jingdong Wang , Honghui Shi , Thomas S. Huang , Lei Zhang

Despite the high biometric performance, finger-vein recognition systems are vulnerable to presentation attacks (aka., spoofing attacks). In this paper, we present a new and robust approach for detecting presentation attacks on finger-vein…

Computer Vision and Pattern Recognition · Computer Science 2019-12-04 Jag Mohan Singh , Sushma Venkatesh , Kiran B. Raja , Raghavendra Ramachandra , Christoph Busch

Without deploying face anti-spoofing countermeasures, face recognition systems can be spoofed by presenting a printed photo, a video, or a silicon mask of a genuine user. Thus, face presentation attack detection (PAD) plays a vital role in…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Usman Muhammad , Mourad Oussalah

Liveness Detection (LivDet) is an international competition series open to academia and industry with the objec-tive to assess and report state-of-the-art in Presentation Attack Detection (PAD). LivDet-2023 Noncontact Fingerprint is the…

Over the past few years, different computer-aided diagnosis (CAD) systems have been proposed to tackle skin lesion analysis. Most of these systems work only for dermoscopy images since there is a strong lack of public clinical images…

Presentation attack detection (PAD) subsystems are an important part of effective and user-friendly remote identity validation (RIV) systems. However, ensuring robust performance across diverse environmental and procedural conditions…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 John J. Howard , Richard O. Plesh , Yevgeniy B. Sirotin , Jerry L. Tipton , Arun R. Vemury

The problem of face alignment has been intensively studied in the past years. A large number of novel methods have been proposed and reported very good performance on benchmark dataset such as 300W. However, the differences in the…

Computer Vision and Pattern Recognition · Computer Science 2015-11-17 Heng Yang , Xuhui Jia , Chen Change Loy , Peter Robinson

In response to the rising threat of the face morphing attack, this paper introduces and explores the potential of Video-based Morphing Attack Detection (V-MAD) systems in real-world operational scenarios. While current morphing attack…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Guido Borghi , Annalisa Franco , Nicolò Di Domenico , Matteo Ferrara , Davide Maltoni

Face Recognition is a common problem in Machine Learning. This technology has already been widely used in our lives. For example, Facebook can automatically tag people's faces in images, and also some mobile devices use face recognition to…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Fares Jalled

Facial Expressions Recognition(FER) on low-resolution images is necessary for applications like group expression recognition in crowd scenarios(station, classroom etc.). Classifying a small size facial image into the right expression…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Wei Jing , Feng Tian , Jizhong Zhang , Kuo-Ming Chao , Zhenxin Hong , Xu Liu

Face presentation attack detection (PAD) plays an important role in defending face recognition systems against presentation attacks. The success of PAD largely relies on supervised learning that requires a huge number of labeled data, which…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Usman Muhammad , Mourad Oussalah

In this paper we address the issues of using edge detection techniques on facial images to produce cancellable biometric templates and a novel method for template verification against tampering. With increasing use of biometrics, there is a…

Computer Vision and Pattern Recognition · Computer Science 2014-01-23 Manoj Krishnaswamy , G. Hemantha Kumar

Important information that relates to a specific topic in a document is often organized in tabular format to assist readers with information retrieval and comparison, which may be difficult to provide in natural language. However, tabular…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Xu Zhong , Elaheh ShafieiBavani , Antonio Jimeno Yepes

In this work, we present a general framework for building a biometrics system capable of capturing multispectral data from a series of sensors synchronized with active illumination sources. The framework unifies the system design for…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Leonidas Spinoulas , Mohamed Hussein , David Geissbühler , Joe Mathai , Oswin G. Almeida , Guillaume Clivaz , Sébastien Marcel , Wael AbdAlmageed

This paper proposes a Few-shot Learning (FSL) approach for detecting Presentation Attacks on ID Cards deployed in a remote verification system and its extension to new countries. Our research analyses the performance of Prototypical…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Alvaro S. Rocamora , Juan M. Espin , Juan E. Tapia

The integration of multimodal models into Presentation Attack Detection (PAD) for ID Documents represents a significant advancement in biometric security. Traditional PAD systems rely solely on visual features, which often fail to detect…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Marina Villanueva , Juan M. Espin , Juan E. Tapia

Web-scraped, in-the-wild datasets have become the norm in face recognition research. The numbers of subjects and images acquired in web-scraped datasets are usually very large, with number of images on the millions scale. A variety of…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 Kai Zhang , Vítor Albiero , Kevin W. Bowyer

With an exponentially growing number of graphs from disparate repositories, there is a strong need to analyze a graph database containing an extensive collection of small- or medium-sized data graphs (e.g., chemical compounds). Although…

Databases · Computer Science 2022-12-16 Kai Huang , Haibo Hu , Qingqing Ye , Kai Tian , Bolong Zheng , Xiaofang Zhou

Multi-view facial expression recognition (FER) is a challenging task because the appearance of an expression varies in poses. To alleviate the influences of poses, recent methods either perform pose normalization or learn separate FER…

Computer Vision and Pattern Recognition · Computer Science 2019-05-27 Yuanyuan Liu , Jiyao Peng , Jiabei Zeng , Shiguang Shan