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The large range of potential applications, not only for patients but also for healthy people, that could be achieved by affective BCI (aBCI) makes more latent the necessity of finding a commonly accepted protocol for real-time EEG-based…

Signal Processing · Electrical Eng. & Systems 2020-05-21 Jennifer Sorinasa , Juan C. Fernandez-Troyano , Mikel Val-Calvo , Jose Manuel Ferrández , Eduardo Fernandez

Emotion recognition is an important part of affective computing. Extracting emotional cues from human gaits yields benefits such as natural interaction, a nonintrusive nature, and remote detection. Recently, the introduction of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Cheng Song , Lu Lu , Zhen Ke , Long Gao , Shuai Ding

State-of-the-art methods for counting people in crowded scenes rely on deep networks to estimate crowd density. While effective, these data-driven approaches rely on large amount of data annotation to achieve good performance, which stops…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Weizhe Liu , Nikita Durasov , Pascal Fua

Electroencephalography (EEG) measures the neuronal activities in different brain regions via electrodes. Many existing studies on EEG-based emotion recognition do not fully exploit the topology of EEG channels. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Peixiang Zhong , Di Wang , Chunyan Miao

Studies in the area of neuroscience have revealed the relationship between emotional patterns and brain functional regions, demonstrating that dynamic relationships between different brain regions are an essential factor affecting emotion…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Yijin Zhou , Fu Li , Yang Li , Youshuo Ji , Guangming Shi , Wenming Zheng , Lijian Zhang , Yuanfang Chen , Rui Cheng

There have been a recent line of works to automatically predict the emotions of posts in social media. Existing approaches consider the posts individually and predict their emotions independently. Different from previous researches, we…

Computation and Language · Computer Science 2019-08-29 Xiabing Zhou , Zhongqing Wang , Shoushan Li , Guodong Zhou , Min Zhang

Facial expressions vary from person to person, and the brightness, contrast, and resolution of every random image are different. This is why recognizing facial expressions is very difficult. This article proposes an efficient system for…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Faisal Ghaffar

In recent years, numerous neuroscientific studies demonstrate that specific areas of the brain are connected to human emotional responses, with these regions exhibiting variability across individuals and emotional states. To fully leverage…

Signal Processing · Electrical Eng. & Systems 2025-04-30 Tianzhi Feng , Chennan Wu , Yi Niu , Fu Li , Yang Li , Boxun Fu , Zhifu Zhao , Xiaotian Wang

Given a network with attributed edges, how can we identify anomalous behavior? Networks with edge attributes are commonplace in the real world. For example, edges in e-commerce networks often indicate how users rated products and services…

Social and Information Networks · Computer Science 2015-11-20 Neil Shah , Alex Beutel , Bryan Hooi , Leman Akoglu , Stephan Gunnemann , Disha Makhija , Mohit Kumar , Christos Faloutsos

In this paper, an approach to the problem of automatic facial feature extraction from a still frontal posed image and classification and recognition of facial expression and hence emotion and mood of a person is presented. Feed forward back…

Computer Vision and Pattern Recognition · Computer Science 2012-04-11 S. P. Khandait , R. C. Thool , P. D. Khandait

Event cameras are vision sensors that record asynchronous streams of per-pixel brightness changes, referred to as "events". They have appealing advantages over frame-based cameras for computer vision, including high temporal resolution,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Daniel Gehrig , Antonio Loquercio , Konstantinos G. Derpanis , Davide Scaramuzza

This paper examines potential biases and inconsistencies in emotional evocation of images produced by generative artificial intelligence (AI) models and their potential bias toward negative emotions. In particular, we assess this bias by…

Computers and Society · Computer Science 2024-12-17 Maneet Mehta , Cody Buntain

Multimodal emotion analysis performed better in emotion recognition depending on more comprehensive emotional clues and multimodal emotion dataset. In this paper, we developed a large multimodal emotion dataset, named "HED" dataset, to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Zhongyu Fang , Aoyun He , Qihui Yu , Baopeng Gao , Weiping Ding , Tong Zhang , Lei Ma

Incremental learning is a complex process due to potential catastrophic forgetting of old tasks when learning new ones. This is mainly due to transient features that do not fit from task to task. In this paper, we focus on complex emotion…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Thibault Geoffroy , Gauthier Gerspacher , Lionel Prevost

Emotion recognition from physiological signals remains challenging due to their non-stationary, noisy, and subject-dependent characteristics. This work presents, to the best of our knowledge, the first comprehensive application of liquid…

Signal Processing · Electrical Eng. & Systems 2026-02-10 Anindya Bhattacharjee , Nittya Ananda Biswas , K. A. Shahriar , Adib Rahman

Recently deep generative models have achieved impressive results in the field of automated facial expression editing. However, the approaches presented so far presume a discrete representation of human emotions and are therefore limited in…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Alexandra Lindt , Pablo Barros , Henrique Siqueira , Stefan Wermter

We present a novel classifier network called STEP, to classify perceived human emotion from gaits, based on a Spatial Temporal Graph Convolutional Network (ST-GCN) architecture. Given an RGB video of an individual walking, our formulation…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Uttaran Bhattacharya , Trisha Mittal , Rohan Chandra , Tanmay Randhavane , Aniket Bera , Dinesh Manocha

We propose a graph-based mechanism to extract rich-emotion bearing patterns, which fosters a deeper analysis of online emotional expressions, from a corpus. The patterns are then enriched with word embeddings and evaluated through several…

Computation and Language · Computer Science 2018-04-25 Elvis Saravia , Hsien-Chi Toby Liu , Yi-Shin Chen

We present a topological pipeline for automated multiclass emotion recognition from eye-tracking data. Delay embeddings of gaze trajectories are analyzed using persistent homology. From the resulting persistence diagrams, we extract…

Machine Learning · Computer Science 2025-07-24 Arsha Niksa , Hooman Zare , Ali Shahrabi , Hanieh Hatami , Mohammadreza Razvan

The electrodermal activity (EDA) signal is a sensitive and non-invasive surrogate measure of sympathetic function. Use of EDA has increased in popularity in recent years for such applications as emotion and stress recognition; assessment of…

Signal Processing · Electrical Eng. & Systems 2021-07-19 Md Billal Hossain , Hugo Fernando Posada-Quintero , Youngsun Kong , Riley McNaboe , Ki Chon