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We propose two face representations that are blind to facial expressions associated to emotional responses. This work is in part motivated by new international regulations for personal data protection, which enforce data controllers to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 Alejandro Peña , Julian Fierrez , Agata Lapedriza , Aythami Morales

In human interactions, emotion recognition is crucial. For this reason, the topic of computer-vision approaches for automatic emotion recognition is currently being extensively researched. Processing multi-channel electroencephalogram (EEG)…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Joshua Bègue , Mohamed Aymen Labiod , Abdelhamid Melloulk

Emotion recognition is the task of classifying perceived emotions in people. Previous works have utilized various nonverbal cues to extract features from images and correlate them to emotions. Of these cues, situational context is…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Willams de Lima Costa , Estefania Talavera Martinez , Lucas Silva Figueiredo , Veronica Teichrieb

This survey provides a comprehensive exploration of applications of Topological Data Analysis (TDA) within neural network analysis. Using TDA tools such as persistent homology and Mapper, we delve into the intricate structures and behaviors…

Machine Learning · Computer Science 2024-01-04 Rubén Ballester , Carles Casacuberta , Sergio Escalera

This paper proposes a multimodal emotion recognition system based on hybrid fusion that classifies the emotions depicted by speech utterances and corresponding images into discrete classes. A new interpretability technique has been…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Puneet Kumar , Sarthak Malik , Balasubramanian Raman

Compared to other modalities, electroencephalogram (EEG) based emotion recognition can intuitively respond to emotional patterns in the human brain and, therefore, has become one of the most focused tasks in affective computing. The nature…

Signal Processing · Electrical Eng. & Systems 2024-08-14 Chenyu Liu , Xinliang Zhou , Yihao Wu , Yi Ding , Liming Zhai , Kun Wang , Ziyu Jia , Yang Liu

Compared with facial emotion recognition on categorical model, the dimensional emotion recognition can describe numerous emotions of the real world more accurately. Most prior works of dimensional emotion estimation only considered…

Computer Vision and Pattern Recognition · Computer Science 2018-11-30 Xiaohua Wang , Muzi Peng , Lijuan Pan , Min Hu , Chunhua Jin , Fuji Ren

In this work, user's emotion using its facial expressions will be detected. These expressions can be derived from the live feed via system's camera or any pre-exisiting image available in the memory. Emotions possessed by humans can be…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Raghav Puri , Archit Gupta , Manas Sikri , Mohit Tiwari , Nitish Pathak , Shivendra Goel

We use topological data analysis as a tool to analyze the fit of mathematical models to experimental data. This study is built on data obtained from motion tracking groups of aphids in [Nilsen et al., PLOS One, 2013] and two random walk…

Quantitative Methods · Quantitative Biology 2018-11-13 M. Ulmer , Lori Ziegelmeier , Chad M. Topaz

In order to develop more precise and functional affective applications, it is necessary to achieve a balance between the psychology and the engineering applied to emotions. Signals from the central and peripheral nervous systems have been…

Human-Computer Interaction · Computer Science 2019-05-02 Jennifer Sorinas , Jose Manuel Ferrández , Eduardo Fernandez

We present MuMTAffect, a novel Multimodal Multitask Affective Embedding Network designed for joint emotion classification and personality prediction (re-identification) from short physiological signal segments. MuMTAffect integrates…

Human-Computer Interaction · Computer Science 2025-09-05 Meisam Jamshidi Seikavandi , Fabricio Batista Narcizo , Ted Vucurevich , Andrew Burke Dittberner , Paolo Burelli

This study explores a streamlined facial data collection method for conversational contexts, addressing the limitations of existing approaches that often require extensive datasets and prioritize technical metrics over user perception and…

Human-Computer Interaction · Computer Science 2026-02-03 Seoyoung Kang , Seokhwan Yang , Hail Song , Boram Yoon , Jinwook Kim , Kangsoo Kim , Woontack Woo

The paper describes BIRAFFE2 data set, which is a result of an affective computing experiment conducted between 2019 and 2020, that aimed to develop computer models for classification and recognition of emotion. Such work is important to…

Human-Computer Interaction · Computer Science 2020-11-11 Krzysztof Kutt , Dominika Drążyk , Maciej Szelążek , Szymon Bobek , Grzegorz J. Nalepa

In human-to-computer interaction, facial animation in synchrony with affective speech can deliver more naturalistic conversational agents. In this paper, we present a two-stage deep learning approach for affective speech driven facial shape…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-13 Rizwan Sadiq , Sasan AsadiAbadi , Engin Erzin

Although psychological research indicates that bodily expressions convey important affective information, to date research in emotion recognition focused mainly on facial expression or voice analysis. In this paper we propose an approach to…

Human-Computer Interaction · Computer Science 2014-02-21 Stefano Piana , Alessandra Staglianò , Francesca Odone , Alessandro Verri , Antonio Camurri

Automatic affect recognition is a challenging task due to the various modalities emotions can be expressed with. Applications can be found in many domains including multimedia retrieval and human computer interaction. In recent years, deep…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Panagiotis Tzirakis , George Trigeorgis , Mihalis A. Nicolaou , Björn Schuller , Stefanos Zafeiriou

In the past, several models of consciousness have become popular and have led to the development of models for machine consciousness with varying degrees of success and challenges for simulation and implementations. Moreover, affective…

Artificial Intelligence · Computer Science 2017-01-03 Rohitash Chandra

Despite significant recent advances in the field of head pose estimation and facial expression recognition, raising the cognitive level when analysing human activity presents serious challenges to current concepts. Motivated by the need of…

Computer Vision and Pattern Recognition · Computer Science 2017-03-17 Grigorios Kalliatakis , Nikolaos Vidakis , Georgios Triantafyllidis

Interacting, self-propelled particles such as epithelial cells can dynamically self-organize into complex multicellular patterns, which are challenging to classify without a priori information. Classically, different phases and phase…

Quantitative Methods · Quantitative Biology 2021-01-19 Dhananjay Bhaskar , William Y. Zhang , Ian Y. Wong

Affective behaviour analysis has aroused researchers' attention due to its broad applications. However, it is labor exhaustive to obtain accurate annotations for massive face images. Thus, we propose to utilize the prior facial information…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Yifan Li , Haomiao Sun , Zhaori Liu , Hu Han