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Facial expression recognition (FER) has emerged as a promising approach to the development of emotion-aware intelligent systems. The performance of FER in multiple domains is continuously being improved, especially through advancements in…

Human-Computer Interaction · Computer Science 2024-10-15 Sanjeev Nahulanthran , Mor Vered , Leimin Tian , Dana Kulić

Spatio-temporal information is very important to capture the discriminative cues between genuine and fake faces from video sequences. To explore such a temporal feature, the fine-grained motions (e.g., eye blinking, mouth movements and head…

Computer Vision and Pattern Recognition · Computer Science 2019-01-18 Xiaoguang Tu , Hengsheng Zhang , Mei Xie , Yao Luo , Yuefei Zhang , Zheng Ma

Facial expression recognition (FER) systems raise significant privacy concerns due to the potential exposure of sensitive identity information. This paper presents a study on removing identity information while preserving FER capabilities.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Feng Xu , David Ahmedt-Aristizabal , Lars Petersson , Dadong Wang , Xun Li

Spectrum sensing allows cognitive radio systems to detect relevant signals in despite the presence of severe interference. Most of the existing spectrum sensing techniques use a particular signal-noise model with certain assumptions and…

Information Theory · Computer Science 2021-12-07 Nupur Choudhury , Kandarpa Kumar Sarma , Chinmoy Kalita , Aradhana Misra

The rapid advancement in deep learning over the past decade has transformed Facial Expression Recognition (FER) systems, as newer methods have been proposed that outperform the existing traditional handcrafted techniques. However, such a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Syed Sameen Ahmad Rizvi , Preyansh Agrawal , Jagat Sesh Challa , Pratik Narang

For image recognition, an extensive number of methods have been proposed to overcome the high-dimensionality problem of feature vectors being used. These methods vary from unsupervised to supervised, and from statistics to graph-theory…

Computer Vision and Pattern Recognition · Computer Science 2018-01-12 Cigdem Turan , Kin-Man Lam , Xiangjian He

This paper builds upon an existing speech emotion recognition model by adding an additional LSTM layer to improve the accuracy and processing efficiency of emotion recognition from audio data. By capturing the long-term dependencies within…

Artificial Intelligence · Computer Science 2024-12-02 Xiaoran Yang , Shuhan Yu , Wenxi Xu

Facial expression data is characterized by a significant imbalance, with most collected data showing happy or neutral expressions and fewer instances of fear or disgust. This imbalance poses challenges to facial expression recognition (FER)…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Yuhang Zhang , Yaqi Li , Lixiong Qin , Xuannan Liu , Weihong Deng

Facial Expression Recognition (FER) systems based on deep learning have achieved impressive performance in recent years. However, these models often exhibit demographic biases, particularly with respect to age, which can compromise their…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 F. Xavier Gaya-Morey , Julia Sanchez-Perez , Cristina Manresa-Yee , Jose M. Buades-Rubio

Facial micro-expression (ME) recognition has posed a huge challenge to researchers for its subtlety in motion and limited databases. Recently, handcrafted techniques have achieved superior performance in micro-expression recognition but at…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Huai-Qian Khor , John See , Raphael C. W. Phan , Weiyao Lin

Accurate vehicle trajectory prediction is crucial for ensuring safe and efficient autonomous driving. This work explores the integration of Transformer based model with Long Short-Term Memory (LSTM) based technique to enhance spatial and…

Robotics · Computer Science 2024-12-19 Chandra Raskoti , Weizi Li

The human face conveys a significant amount of information. Through facial expressions, the face is able to communicate numerous sentiments without the need for verbalisation. Visual emotion recognition has been extensively studied.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-20 Liam Schoneveld , Alice Othmani

Facial expression recognition is an important research direction in the field of artificial intelligence. Although new breakthroughs have been made in recent years, the uneven distribution of datasets and the similarity between different…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Bingyu Nan , Feng Liu , Xuezhong Qian , Wei Song

In this paper, we aim to improve the performance of in-the-wild Facial Expression Recognition (FER) by exploiting semi-supervised learning. Large-scale labeled data and deep learning methods have greatly improved the performance of image…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Jing Jiang , Weihong Deng

Representation learning and feature disentanglement have garnered significant research interest in the field of facial expression recognition (FER). The inherent ambiguity of emotion labels poses challenges for conventional supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Jia Li , Jiantao Nie , Dan Guo , Richang Hong , Meng Wang

In recent years, deep learning has presented a great advance in hyperspectral image (HSI) classification. Particularly, long short-term memory (LSTM), as a special deep learning structure, has shown great ability in modeling long-term…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Wen-Shuai Hu , Heng-Chao Li , Lei Pan , Wei Li , Ran Tao , Qian Du

Efficient data compression is crucial for the storage and transmission of visual data. However, in facial expression recognition (FER) tasks, lossy compression often leads to feature degradation and reduced accuracy. To address these…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Xiumei Li , Marc Windsheimer , Misha Sadeghi , Björn Eskofier , André Kaup

Facial Expression Recognition (FER) plays a crucial role in computer vision and finds extensive applications across various fields. This paper aims to present our approach for the upcoming 6th Affective Behavior Analysis in-the-Wild (ABAW)…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Jun Yu , Zhihong Wei , Zhongpeng Cai , Gongpeng Zhao , Zerui Zhang , Yongqi Wang , Guochen Xie , Jichao Zhu , Wangyuan Zhu

The ability to recognize and interpret facial emotions is a critical component of human communication, as it allows individuals to understand and respond to emotions conveyed through facial expressions and vocal tones. The recognition of…

Computer Vision and Pattern Recognition · Computer Science 2023-05-03 Arpita Vats , Aman Chadha

Occlusion and pose variations, which can change facial appearance significantly, are two major obstacles for automatic Facial Expression Recognition (FER). Though automatic FER has made substantial progresses in the past few decades,…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Kai Wang , Xiaojiang Peng , Jianfei Yang , Debin Meng , Yu Qiao