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In recent years, the increasing availability of personal data has raised concerns regarding privacy and security. One of the critical processes to address these concerns is data anonymization, which aims to protect individual privacy and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Fabio Hellmann , Silvan Mertes , Mohamed Benouis , Alexander Hustinx , Tzung-Chien Hsieh , Cristina Conati , Peter Krawitz , Elisabeth André

In this paper, we propose an approach for Facial Expressions Recognition (FER) based on a deep multi-facial patches aggregation network. Deep features are learned from facial patches using deep sub-networks and aggregated within one deep…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Ahmed Rachid Hazourli , Amine Djeghri , Hanan Salam , Alice Othmani

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

An automatic Facial Expression Recognition (FER) model with Adaboost face detector, feature selection based on manifold learning and synergetic prototype based classifier has been proposed. Improved feature selection method and proposed…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Chendi Wang

Facial expression recognition (FER) in the wild is a challenging task affected by the image quality and has attracted broad interest in computer vision. There is no research using feature fusion and ensemble strategy for FER simultaneously.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Guangyao Zhou , Yuanlun Xie , Yiqin Fu , Zhaokun Wang

How to extract effective expression representations that invariant to the identity-specific attributes is a long-lasting problem for facial expression recognition (FER). Most of the previous methods process the RGB images of a sequence,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Xiaofeng Liu , Linghao Jin , Xu Han , Jane You

Face recognition, as one of the most successful applications in artificial intelligence, has been widely used in security, administration, advertising, and healthcare. However, the privacy issues of public face datasets have attracted…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Kai Wang , Bo Zhao , Xiangyu Peng , Zheng Zhu , Jiankang Deng , Xinchao Wang , Hakan Bilen , Yang You

Automated Facial Expression Recognition (FER) has remained a challenging and interesting problem. Despite efforts made in developing various methods for FER, existing approaches traditionally lack generalizability when applied to unseen…

Neural and Evolutionary Computing · Computer Science 2016-11-18 Ali Mollahosseini , David Chan , Mohammad H. Mahoor

Privacy protection has become a top priority as the proliferation of AI techniques has led to widespread collection and misuse of personal data. Anonymization and visual identity information hiding are two important facial privacy…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Xiao He , Mingrui Zhu , Dongxin Chen , Nannan Wang , Xinbo Gao

Automatic facial expression recognition (FER) has gained much attention due to its applications in human-computer interaction. Among the approaches to improve FER tasks, this paper focuses on deep architecture with the attention mechanism.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Luan Pham , The Huynh Vu , Tuan Anh Tran

Soft-biometric privacy-enhancing techniques represent machine learning methods that aim to: (i) mitigate privacy concerns associated with face recognition technology by suppressing selected soft-biometric attributes in facial images (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Peter Rot , Peter Peer , Vitomir Štruc

Recent studies on fairness have shown that Facial Expression Recognition (FER) models exhibit biases toward certain visually perceived demographic groups. However, the limited availability of human-annotated demographic labels in public FER…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Tangzheng Lian , Oya Celiktutan

Over the centuries, humans have developed and acquired a number of ways to communicate. But hardly any of them can be as natural and instinctive as facial expressions. On the other hand, neural networks have taken the world by storm. And no…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Subodh Lonkar

Facial Expression Recognition (FER) is a critical task within computer vision with diverse applications across various domains. Addressing the challenge of limited FER datasets, which hampers the generalization capability of expression…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Bach Nguyen-Xuan , Thien Nguyen-Hoang , Thanh-Huy Nguyen , Nhu Tai-Do

Facial expression recognition (FER) systems in low-resolution settings face significant challenges in accurately identifying expressions due to the loss of fine-grained facial details. This limitation is especially problematic for…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Syed Sameen Ahmad Rizvi , Soham Kumar , Aryan Seth , Pratik Narang

Facial expression recognition (FER) is a topic attracting significant research in both psychology and machine learning with a wide range of applications. Despite a wealth of research on human FER and considerable progress in computational…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Serin Park , Christian Wallraven

In the recent past, different researchers have proposed privacy-enhancing face recognition systems designed to conceal soft-biometric attributes at feature level. These works have reported impressive results, but generally did not consider…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Dailé Osorio-Roig , Christian Rathgeb , Pawel Drozdowski , Philipp Terhörst , Vitomir Štruc , Christoph Busch

Facial expression recognition (FER) is vital for human-computer interaction and emotion analysis, yet recognizing expressions in low-resolution images remains challenging. This paper introduces a practical method called Dynamic Resolution…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Songpan Wang , Xu Li , Tianxiang Jiang , Yuanlun Xie

Representations used for Facial Expression Recognition (FER) usually contain expression information along with identity features. In this paper, we propose a novel Disentangled Expression learning-Generative Adversarial Network (DE-GAN)…

Computer Vision and Pattern Recognition · Computer Science 2019-12-04 Kamran Ali , Charles E. Hughes

In 2D+3D facial expression recognition (FER), existing methods generate multi-view geometry maps to enhance the depth feature representation. However, this may introduce false estimations due to local plane fitting from incomplete point…

Computer Vision and Pattern Recognition · Computer Science 2020-11-18 Yang Jiao , Yi Niu , Trac D. Tran , Guangming Shi