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Exemplar-free class-incremental learning (EFCIL) presents a significant challenge as the old class samples are absent for new task learning. Due to the severe imbalance between old and new class samples, the learned classifiers can be…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Zhongren Yao , Xiaobin Chang

Facial attributes are soft-biometrics that allow limiting the search space, e.g., by rejecting identities with non-matching facial characteristics such as nose sizes or eyebrow shapes. In this paper, we investigate how the latest versions…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Manuel Günther , Andras Rozsa , Terrance E. Boult

Whilst face recognition applications are becoming increasingly prevalent within our daily lives, leading approaches in the field still suffer from performance bias to the detriment of some racial profiles within society. In this study, we…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Seyma Yucer , Samet Akçay , Noura Al-Moubayed , Toby P. Breckon

With the rapid development of facial forgery techniques, forgery detection has attracted more and more attention due to security concerns. Existing approaches attempt to use frequency information to mine subtle artifacts under high-quality…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Qiqi Gu , Shen Chen , Taiping Yao , Yang Chen , Shouhong Ding , Ran Yi

Sample-to-class-based face recognition models can not fully explore the cross-sample relationship among large amounts of facial images, while sample-to-sample-based models require sophisticated pairing processes for training. Furthermore,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Qiufu Li , Xi Jia , Jiancan Zhou , Linlin Shen , Jinming Duan

In face detection, low-resolution faces, such as numerous small faces of a human group in a crowded scene, are common in dense face prediction tasks. They usually contain limited visual clues and make small faces less distinguishable from…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Guangtao Wang , Jun Li , Jie Xie , Jianhua Xu , Bo Yang

Facial expressions are important cues to observe human emotions. Facial expression recognition has attracted many researchers for years, but it is still a challenging topic since expression features vary greatly with the head poses,…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 S. D. Lalitha , K. K. Thyagharajan

Convolutional neural networks have achieved great improvement on face recognition in recent years because of its extraordinary ability in learning discriminative features of people with different identities. To train such a well-designed…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Xiao Zhang , Zhiyuan Fang , Yandong Wen , Zhifeng Li , Yu Qiao

We describe a deep learning based method for estimating 3D facial expression coefficients. Unlike previous work, our process does not relay on facial landmark detection methods as a proxy step. Recent methods have shown that a CNN can be…

Computer Vision and Pattern Recognition · Computer Science 2018-02-05 Feng-Ju Chang , Anh Tuan Tran , Tal Hassner , Iacopo Masi , Ram Nevatia , Gerard Medioni

Given the similarity between facial expression categories, the presence of compound facial expressions, and the subjectivity of annotators, facial expression recognition (FER) datasets often suffer from ambiguity and noisy labels. Ambiguous…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Ziyang Zhang , Xiao Sun , Liuwei An , Meng Wang

State-of-the-art anomalous sound detection systems often utilize angular margin losses to learn suitable representations of acoustic data using an auxiliary task, which usually is a supervised or self-supervised classification task. The…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-15 Kevin Wilkinghoff , Frank Kurth

Face Recognition (FR) is used in a variety of application domains, from entertainment and banking to security and surveillance. Such applications rely on the FR model to be robust and perform well in a variety of settings. To achieve this,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Žiga Babnik , Fadi Boutros , Naser Damer , Deepak Kumar Jain , Peter Peer , Vitomir Štruc

Recognizing the expressions of partially occluded faces is a challenging computer vision problem. Previous expression recognition methods, either overlooked this issue or resolved it using extreme assumptions. Motivated by the fact that the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Hui Ding , Peng Zhou , Rama Chellappa

Learning discriminative representations is a central goal of supervised deep learning. While cross-entropy (CE) remains the dominant objective for classification, it does not explicitly enforce desirable geometric properties in the…

Machine Learning · Computer Science 2026-04-13 Matheus Vinícius Todescato , Joel Luís Carbonera

Facial expressions, vital in non-verbal human communication, have found applications in various computer vision fields like virtual reality, gaming, and emotional AI assistants. Despite advancements, many facial expression generation models…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Hamza Bouzid , Lahoucine Ballihi

In current practical face authentication systems, most face recognition (FR) algorithms are based on cosine similarity with softmax classification. Despite its reliable classification performance, this method struggles with hard samples. A…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Fan Xie , Yang Wang , Yikang Jiao , Zhenyu Yuan , Congxi Chen , Chuanxin Zhao

This paper introduces the Efficient Facial Landmark Detection (EFLD) model, specifically designed for edge devices confronted with the challenges related to power consumption and time latency. EFLD features a lightweight backbone and a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Ji-Jia Wu

Learning robust feature representation from large-scale noisy faces stands out as one of the key challenges in high-performance face recognition. Recent attempts have been made to cope with this challenge by alleviating the intra-class…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Bingqi Ma , Guanglu Song , Boxiao Liu , Yu Liu

Existing face-swapping methods often deliver competitive results in constrained settings but exhibit substantial quality degradation when handling extreme facial poses. To improve facial pose robustness, explicit geometric features are…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Jongmin Yu , Hyeontaek Oh , Zhongtian Sun , Angelica I Aviles-Rivero , Moongu Jeon , Jinhong Yang

Prototype learning is widely used in face recognition, which takes the row vectors of coefficient matrix in the last linear layer of the feature extraction model as the prototypes for each class. When the prototypes are updated using the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Weijia Fan , Jiajun Wen , Xi Jia , Linlin Shen , Jiancan Zhou , Qiufu Li