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Related papers: LRDif: Diffusion Models for Under-Display Camera E…

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This paper introduces LLDif, a novel diffusion-based facial expression recognition (FER) framework tailored for extremely low-light (LL) environments. Images captured under such conditions often suffer from low brightness and significantly…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Zhifeng Wang , Kaihao Zhang , Ramesh Sankaranarayana

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

Light field (LF) image super-resolution (SR) is a challenging problem due to its inherent ill-posed nature, where a single low-resolution (LR) input LF image can correspond to multiple potential super-resolved outcomes. Despite this…

Image and Video Processing · Electrical Eng. & Systems 2023-11-29 Wentao Chao , Fuqing Duan , Xuechun Wang , Yingqian Wang , Guanghui Wang

Facial Expression Recognition (FER) is essential for human-machine interaction, as it enables machines to interpret human emotions and internal states from facial affective behaviors. Although deep learning has significantly advanced FER…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Rongkang Dong , Cuixin Yang , Cong Zhang , Yushen Zuo , Kin-Man Lam

Facial expression recognition (FER) plays a significant role in our daily life. However, annotation ambiguity in the datasets could greatly hinder the performance. In this paper, we address FER task via label distribution learning paradigm,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Shu Liu , Yan Xu , Tongming Wan , Xiaoyan Kui

Facial Expression Recognition (FER) has consistently been a focal point in the field of facial analysis. In the context of existing methodologies for 3D FER or 2D+3D FER, the extraction of expression features often gets entangled with…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Hebeizi Li , Hongyu Yang , Di Huang

Dynamic Facial Expression Recognition (DFER) plays a critical role in affective computing and human-computer interaction. Although existing methods achieve comparable performance, they inevitably suffer from performance degradation under…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Feng-Qi Cui , Anyang Tong , Jinyang Huang , Jie Zhang , Dan Guo , Zhi Liu , Meng Wang

Facial expression recognition (FER) aims to analyze emotional states from static images and dynamic sequences, which is pivotal in enhancing anthropomorphic communication among humans, robots, and digital avatars by leveraging AI…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Yan Wang , Shaoqi Yan , Yang Liu , Wei Song , Jing Liu , Yang Chang , Xinji Mai , Xiping Hu , Wenqiang Zhang , Zhongxue Gan

The study of Dynamic Facial Expression Recognition (DFER) is a nascent field of research that involves the automated recognition of facial expressions in video data. Although existing research has primarily focused on learning…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Feng Liu , Hanyang Wang , Siyuan Shen

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

Dynamic facial expression recognition (DFER) in the wild is an extremely challenging task, due to a large number of noisy frames in the video sequences. Previous works focus on extracting more discriminative features, but ignore…

Computer Vision and Pattern Recognition · Computer Science 2022-06-13 Hanting Li , Mingzhe Sui , Zhaoqing Zhu , Feng zhao

With the widespread use of NeRF-based implicit 3D representation, the need for camera localization in the same representation becomes manifestly apparent. Doing so not only simplifies the localization process -- by avoiding an…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Rashik Shrestha , Bishad Koju , Abhigyan Bhusal , Danda Pani Paudel , François Rameau

Latent diffusion models (LDM) have revolutionized text-to-image generation, leading to the proliferation of various advanced models and diverse downstream applications. However, despite these significant advancements, current diffusion…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Jiacheng Zhang , Jie Wu , Yuxi Ren , Xin Xia , Huafeng Kuang , Pan Xie , Jiashi Li , Xuefeng Xiao , Weilin Huang , Shilei Wen , Lean Fu , Guanbin Li

This paper proposes a novel 4D Facial Expression Recognition (FER) method using Collaborative Cross-domain Dynamic Image Network (CCDN). Given a 4D data of face scans, we first compute its geometrical images, and then combine their…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 Muzammil Behzad , Nhat Vo , Xiaobai Li , Guoying Zhao

Facial expression recognition (FER) is a subset of computer vision with important applications for human-computer-interaction, healthcare, and customer service. FER represents a challenging problem-space because accurate classification…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Ezra Engel , Lishan Li , Chris Hudy , Robert Schleusner

With the increasing deployment of facial image data across a wide range of applications, efficient compression tailored to facial semantics has become critical for both storage and transmission. While recent learning-based face image…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Yimin Zhou , Yichong Xia , Bin Chen , Mingyao Hong , Jiawei Li , Zhi Wang , Yaowei Wang

With the transition of facial expression recognition (FER) from laboratory-controlled to challenging in-the-wild conditions and the recent success of deep learning techniques in various fields, deep neural networks have increasingly been…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Shan Li , Weihong Deng

Dynamic Facial Expression Recognition(DFER) is a rapidly evolving field of research that focuses on the recognition of time-series facial expressions. While previous research on DFER has concentrated on feature learning from a deep learning…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Feng Liu , Lingna Gu , Chen Shi , Xiaolan Fu

Facial expression recognition (FER) in the wild remains a challenging task due to the subtle and localized nature of expression-related features, as well as the complex variations in facial appearance. In this paper, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Liqian Deng

Light fields (LFs), conducive to comprehensive scene radiance recorded across angular dimensions, find wide applications in 3D reconstruction, virtual reality, and computational photography.However, the LF acquisition is inevitably…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Ruisheng Gao , Yutong Liu , Zeyu Xiao , Zhiwei Xiong
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