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Feature Normalization (FN) is an important technique to help neural network training, which typically normalizes features across spatial dimensions. Most previous image inpainting methods apply FN in their networks without considering the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Tao Yu , Zongyu Guo , Xin Jin , Shilin Wu , Zhibo Chen , Weiping Li , Zhizheng Zhang , Sen Liu

Face Recognition (FR) technology has made significant strides with the emergence of deep learning. Typically, most existing FR models are built upon Convolutional Neural Networks (CNN) and take RGB face images as the model's input. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Jun Dan , Yang Liu , Baigui Sun , Jiankang Deng , Shan Luo

Unsupervised domain adaptation has been widely adopted to generalize models for unlabeled data in a target domain, given labeled data in a source domain, whose data distributions differ from the target domain. However, existing works are…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Weiming Zhuang , Xin Gan , Yonggang Wen , Xuesen Zhang , Shuai Zhang , Shuai Yi

Appearance based person re-identification in a real-world video surveillance system with non-overlapping camera views is a challenging problem for many reasons. Current state-of-the-art methods often address the problem by relying on…

Computer Vision and Pattern Recognition · Computer Science 2016-07-21 Furqan M. Khan , Francois Bremond

In this paper, we analyze some of our real-world deployment of face recognition (FR) systems for various applications and discuss the gaps between expectations of the user and what the system can deliver. We evaluate some of our proposed…

Computer Vision and Pattern Recognition · Computer Science 2016-02-10 Bappaditya Mandal

The performance of a convolutional neural network (CNN) based face recognition model largely relies on the richness of labelled training data. Collecting a training set with large variations of a face identity under different poses and…

Computer Vision and Pattern Recognition · Computer Science 2020-02-25 Hao-Chiang Shao , Kang-Yu Liu , Chia-Wen Lin , Jiwen Lu

As a long-standing problem in computer vision, face detection has attracted much attention in recent decades for its practical applications. With the availability of face detection benchmark WIDER FACE dataset, much of the progresses have…

Computer Vision and Pattern Recognition · Computer Science 2019-01-31 Shifeng Zhang , Rui Zhu , Xiaobo Wang , Hailin Shi , Tianyu Fu , Shuo Wang , Tao Mei , Stan Z. Li

Facial Expression Analysis remains a challenging task due to unexpected task-irrelevant noise, such as identity, head pose, and background. To address this issue, this paper proposes a novel framework, called Norface, that is unified for…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Hanwei Liu , Rudong An , Zhimeng Zhang , Bowen Ma , Wei Zhang , Yan Song , Yujing Hu , Wei Chen , Yu Ding

Although face recognition systems have achieved impressive performance in recent years, the low-resolution face recognition (LRFR) task remains challenging, especially when the LR faces are captured under non-ideal conditions, as is common…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Pei Li , Loreto Prieto , Domingo Mery , Patrick Flynn

Morphing is a challenge to face recognition (FR) for which several morphing attack detection solutions have been proposed. We argue that face recognition and differential morphing attack detection (D-MAD) in principle perform very similar…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Una M. Kelly , Luuk J. Spreeuwers , Raymond N. J. Veldhuis

Facial action unit recognition has many applications from market research to psychotherapy and from image captioning to entertainment. Despite its recent progress, deployment of these models has been impeded due to their limited…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Javier Hernandez , Daniel McDuff , Ognjen , Rudovic , Alberto Fung , Mary Czerwinski

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

Deep learning applies multiple processing layers to learn representations of data with multiple levels of feature extraction. This emerging technique has reshaped the research landscape of face recognition (FR) since 2014, launched by the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Mei Wang , Weihong Deng

Heterogeneous face recognition is a challenging task due to the large modality discrepancy and insufficient cross-modal samples. Most existing works focus on discriminative feature transformation, metric learning and cross-modal face…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Yingguo Xu , Lei Zhang , Qingyan Duan

Recognition of low-quality face images remains a challenge due to invisible or deformation in partial facial regions. For low-quality images dominated by missing partial facial regions, local region similarity contributes more to face…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Wang Yu , Wei Wei

Face anti-spoofing (a.k.a presentation attack detection) has drawn growing attention due to the high-security demand in face authentication systems. Existing CNN-based approaches usually well recognize the spoofing faces when training and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-18 Xiaoguang Tu , Jian Zhao , Mei Xie , Guodong Du , Hengsheng Zhang , Jianshu Li , Zheng Ma , Jiashi Feng

Current state-of-the-art deep learning based face recognition (FR) models require a large number of face identities for central training. However, due to the growing privacy awareness, it is prohibited to access the face images on user…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Chih-Ting Liu , Chien-Yi Wang , Shao-Yi Chien , Shang-Hong Lai

Heterogeneous face recognition (HFR) refers to matching face imagery across different domains. It has received much interest from the research community as a result of its profound implications in law enforcement. A wide variety of new…

Computer Vision and Pattern Recognition · Computer Science 2014-10-13 Shuxin Ouyang , Timothy Hospedales , Yi-Zhe Song , Xueming Li

Surveillance systems play a critical role in security and reconnaissance, but their performance is often compromised by low-quality images and videos, leading to reduced accuracy in face recognition. Additionally, existing AI-based facial…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Anees Nashath Shaik , Barbara Villarini , Vasileios Argyriou

Face morphing attack is proved to be a serious threat to the existing face recognition systems. Although a few face morphing detection methods have been put forward, the face morphing accomplice's facial restoration remains a challenging…

Computer Vision and Pattern Recognition · Computer Science 2019-03-25 Fei Peng , Le-bing Zhang , Min Long