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In the recent past, deep learning-based approaches have significantly improved the classification accuracy when compared to classical signal processing and machine learning based frameworks. But most of them were subject-dependent studies…

Neural and Evolutionary Computing · Computer Science 2021-12-22 Arjun , Aniket Singh Rajpoot , Mahesh Raveendranatha Panicker

Pain is a multifaceted phenomenon that affects a substantial portion of the population. Reliable and consistent evaluation supports individuals experiencing pain and enables the development of effective and advanced management strategies.…

Artificial Intelligence · Computer Science 2025-09-17 Stefanos Gkikas , Ioannis Kyprakis , Manolis Tsiknakis

Facial Emotion Recognition is an inherently difficult problem, due to vast differences in facial structures of individuals and ambiguity in the emotion displayed by a person. Recently, a lot of work is being done in the field of Facial…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Aakash Saroop , Pathik Ghugare , Sashank Mathamsetty , Vaibhav Vasani

Recently, physiological data such as electroencephalography (EEG) signals have attracted significant attention in affective computing. In this context, the main goal is to design an automated model that can assess emotional states. Lately,…

Machine Learning · Computer Science 2023-07-07 Shadi Sartipi , Mastaneh Torkamani-Azar , Mujdat Cetin

With the advancement of artificial intelligence and computer vision technologies, multimodal emotion recognition has become a prominent research topic. However, existing methods face challenges such as heterogeneous data fusion and the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Wei Dai , Dequan Zheng , Feng Yu , Yanrong Zhang , Yaohui Hou

Micro-expressions (MEs) are brief, involuntary facial movements that reveal genuine emotions, typically lasting less than half a second. Recognizing these subtle expressions is critical for applications in psychology, security, and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Vu Tram Anh Khuong , Luu Tu Nguyen , Thanh Ha Le , Thi Duyen Ngo

The increasing global prevalence of mental disorders, such as depression and PTSD, requires objective and scalable diagnostic tools. Traditional clinical assessments often face limitations in accessibility, objectivity, and consistency.…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-03 Abdelrahaman A. Hassan , Abdelrahman A. Ali , Aya E. Fouda , Radwa J. Hanafy , Mohammed E. Fouda

Getting pain intensity from face images is an important problem in autonomous nursing systems. However, due to the limitation in data sources and the subjectiveness in pain intensity values, it is hard to adopt modern deep neural networks…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Conghui Li , Zhaocheng Zhu , Yuming Zhao

Automatic emotion recognition is one of the central concerns of the Human-Computer Interaction field as it can bridge the gap between humans and machines. Current works train deep learning models on low-level data representations to solve…

Audio and Speech Processing · Electrical Eng. & Systems 2021-11-22 Mariana Rodrigues Makiuchi , Kuniaki Uto , Koichi Shinoda

In this paper, an effective pipeline to automatic 4D Facial Expression Recognition (4D FER) is proposed. It combines two growing but disparate ideas in Computer Vision -- computing the spatial facial deformations using tools from Riemannian…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Qingkai Zhen , Di Huang , Yunhong Wang , Hassen Drira , Boulbaba Ben Amor , Mohamed Daoudi

We propose an automatic method to estimate self-reported pain based on facial landmarks extracted from videos. For each video sequence, we decompose the face into four different regions and the pain intensity is measured by modeling the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Benjamin Szczapa , Mohamed Daoudi , Stefano Berretti , Pietro Pala , Alberto Del Bimbo , Zakia Hammal

Speech Emotion Recognition (SER) has become a growing focus of research in human-computer interaction. Spatiotemporal features play a crucial role in SER, yet current research lacks comprehensive spatiotemporal feature learning. This paper…

Sound · Computer Science 2023-12-29 Mengbo Li , Yuanzhong Zheng , Dichucheng Li , Yulun Wu , Yaoxuan Wang , Haojun Fei

Expressing and identifying emotions through facial and physical expressions is a significant part of social interaction. Emotion recognition is an essential task in computer vision due to its various applications and mainly for allowing a…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Willams Costa , David Macêdo , Cleber Zanchettin , Lucas S. Figueiredo , Veronica Teichrieb

A significant number of people are suffering from cognitive impairment all over the world. Early detection of cognitive impairment is of great importance to both patients and caregivers. However, existing approaches have their shortages,…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Zixiang Fei , Erfu Yang , Leijian Yu , Xia Li , Huiyu Zhou , Wenju Zhou

Neonates do not have the ability to either articulate pain or communicate it non-verbally by pointing. The current clinical standard for assessing neonatal pain is intermittent and highly subjective. This discontinuity and subjectivity can…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Md Sirajus Salekin , Ghada Zamzmi , Dmitry Goldgof , Rangachar Kasturi , Thao Ho , Yu Sun

Automatic continuous time, continuous value assessment of a patient's pain from face video is highly sought after by the medical profession. Despite the recent advances in deep learning that attain impressive results in many domains, pain…

Computer Vision and Pattern Recognition · Computer Science 2017-01-18 Joy Egede , Michel Valstar , Brais Martinez

EEG-based analysis of pain perception, enhanced by machine learning, reveals how the brain encodes pain by identifying neural patterns evoked by noxious stimulation. However, a major challenge that remains is the generalization of machine…

Signal Processing · Electrical Eng. & Systems 2025-08-19 Mathis Rezzouk , Fabrice Gagnon , Alyson Champagne , Mathieu Roy , Philippe Albouy , Michel-Pierre Coll , Cem Subakan

We propose an automatic method for pain intensity measurement from video. For each video, pain intensity was measured using the dynamics of facial movement using 66 facial points. Gram matrices formulation was used for facial points…

Computer Vision and Pattern Recognition · Computer Science 2020-06-25 Benjamin Szczapa , Mohamed Daoudi , Stefano Berretti , Pietro Pala , Alberto Del Bimbo , Zakia Hammal

There is an increasing consensus among re- searchers that making a computer emotionally intelligent with the ability to decode human affective states would allow a more meaningful and natural way of human-computer interactions (HCIs). One…

Human-Computer Interaction · Computer Science 2016-06-02 Maria S. Perez-Rosero , Behnaz Rezaei , Murat Akcakaya , Sarah Ostadabbas

People represent their emotions in a myriad of ways. Among the most important ones is whole body expressions which have many applications in different fields such as human-computer interaction (HCI). One of the most important challenges in…

Computer Vision and Pattern Recognition · Computer Science 2020-10-29 Peyman Tahghighi , Abbas Koochari , Masoume Jalali