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Despite significant advances in Deep Face Recognition (DFR) systems, introducing new DFRs under specific constraints such as varying pose still remains a big challenge. Most particularly, due to the 3D nature of a human head, facial…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Sara Shahsavarani , Morteza Analoui , Reza Shoja Ghiass

After intensive research, heterogenous face recognition is still a challenging problem. The main difficulties are owing to the complex relationship between heterogenous face image spaces. The heterogeneity is always tightly coupled with…

Computer Vision and Pattern Recognition · Computer Science 2014-06-06 Dong Yi , Zhen Lei , Shengcai Liao , Stan Z. Li

Very low-resolution face recognition (VLRFR) poses unique challenges, such as tiny regions of interest and poor resolution due to extreme standoff distance or wide viewing angle of the acquisition devices. In this paper, we study principled…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Jacky Chen Long Chai , Tiong-Sik Ng , Cheng-Yaw Low , Jaewoo Park , Andrew Beng Jin Teoh

Federated learning (FL) is a promising approach for addressing scalability and latency issues in large-scale networks by enabling collaborative model training without requiring the sharing of raw data. However, existing FL frameworks often…

Machine Learning · Computer Science 2025-08-13 Dung T. Tran , Nguyen B. Ha , Van-Dinh Nguyen , Kok-Seng Wong

Deep learning technology has enabled successful modeling of complex facial features when high quality images are available. Nonetheless, accurate modeling and recognition of human faces in real world scenarios `on the wild' or under adverse…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 S. W. Arachchilage , E. Izquierdo

Visual data, such as an image or a sequence of video frames, is often naturally represented as a point set. In this paper, we consider the fundamental problem of finding a nearest set from a collection of sets, to a query set. This problem…

Computer Vision and Pattern Recognition · Computer Science 2019-05-30 I-Hong Jhuo , Jun Wang

The discriminability of feature representation is the key to open-set face recognition. Previous methods rely on the learnable weights of the classification layer that represent the identities. However, the evaluation process learns no…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Youzhe Song , Feng Wang

Biometric methods based on iris images are believed to allow very high accuracy, and there has been an explosion of interest in iris biometrics in recent years. In this paper, we use the Scale Invariant Feature Transformation (SIFT) for…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Fernando Alonso-Fernandez , Pedro Tome-Gonzalez , Virginia Ruiz-Albacete , Javier Ortega-Garcia

In real-world scenarios, many factors may harm face recognition performance, e.g., large pose, bad illumination,low resolution, blur and noise. To address these challenges, previous efforts usually first restore the low-quality faces to…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Xiaoguang Tu , Jian Zhao , Qiankun Liu , Wenjie Ai , Guodong Guo , Zhifeng Li , Wei Liu , Jiashi Feng

Deep neural networks (DNNs) trained on large-scale datasets have recently achieved impressive improvements in face recognition. But a persistent challenge remains to develop methods capable of handling large pose variations that are…

Computer Vision and Pattern Recognition · Computer Science 2017-08-17 Xi Peng , Xiang Yu , Kihyuk Sohn , Dimitris Metaxas , Manmohan Chandraker

Heterogeneous Face Recognition (HFR) aims at matching face images captured across different sensing modalities, such as thermal-to-visible or near-infrared-to-visible, enhancing the usability of face recognition systems in challenging…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Anjith George , Sebastien Marcel

Federated Learning (FL) is developed to learn a single global model across the decentralized data, while is susceptible when realizing client-specific personalization in the presence of statistical heterogeneity. However, studies focus on…

Machine Learning · Computer Science 2022-04-27 Changxing Jing , Yan Huang , Yihong Zhuang , Liyan Sun , Yue Huang , Zhenlong Xiao , Xinghao Ding

Open-set face recognition refers to a scenario in which biometric systems have incomplete knowledge of all existing subjects. Therefore, they are expected to prevent face samples of unregistered subjects from being identified as previously…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Rafael Henrique Vareto , Manuel Günther , William Robson Schwartz

This paper presents a face recognition method based on a sequence of images. Face shape is reconstructed from images using a combination of structure-from-motion and multi-view stereo methods. The reconstructed 3D face model is compared…

Computer Vision and Pattern Recognition · Computer Science 2018-10-01 Jacek Komorowski , Przemyslaw Rokita

Due to the rising concern of data privacy, it's reasonable to assume the local client data can't be transferred to a centralized server, nor their associated identity label is provided. To support continuous learning and fill the last-mile…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Wenbin Zhu , Chien-Yi Wang , Kuan-Lun Tseng , Shang-Hong Lai , Baoyuan Wang

Facial expression recognition (FER) plays a significant role in the ubiquitous application of computer vision. We revisit this problem with a new perspective on whether it can acquire useful representations that improve FER performance in…

Computer Vision and Pattern Recognition · Computer Science 2023-01-04 Jiawei Mao , Guangyi Zhao , Yuanqi Chang , Xuesong Yin , Xiaogang Peng , Rui Xu

Facial expression recognition (FER) is a challenging problem because the expression component is always entangled with other irrelevant factors, such as identity and head pose. In this work, we propose an identity and pose disentangled…

Computer Vision and Pattern Recognition · Computer Science 2022-08-18 Jing Jiang , Weihong Deng

Federated learning (FL) enables the collaboration of multiple deep learning models to learn from decentralized data archives (i.e., clients) without accessing data on clients. Although FL offers ample opportunities in knowledge discovery…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Barış Büyüktaş , Gencer Sumbul , Begüm Demir

In a scenario where multi-modal cameras are operating together, the problem of working with non-aligned images cannot be avoided. Yet, existing image fusion algorithms rely heavily on strictly registered input image pairs to produce more…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Zeyang Zhang , Hui Li , Tianyang Xu , Xiaojun Wu , Josef Kittler

Image schema is a recurrent pattern of reasoning where one entity is mapped into another. Image schema is similar to conceptual metaphor and is also related to metaphoric gesture. Our main goal is to generate metaphoric gestures for an…

Human-Computer Interaction · Computer Science 2022-07-19 Fajrian Yunus , Chloé Clavel , Catherine Pelachaud