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Affect (emotion) recognition has gained significant attention from researchers in the past decade. Emotion-aware computer systems and devices have many applications ranging from interactive robots, intelligent online tutor to emotion based…

Human-Computer Interaction · Computer Science 2016-07-12 Amol Patwardhan , Gerald Knapp

Compound Expression Recognition (CER), a subfield of affective computing, aims to detect complex emotional states formed by combinations of basic emotions. In this work, we present a novel zero-shot multimodal approach for CER that combines…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Elena Ryumina , Maxim Markitantov , Alexandr Axyonov , Dmitry Ryumin , Mikhail Dolgushin , Alexey Karpov

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

Understanding the facial expressions of our interlocutor is important to enrich the communication and to give it a depth that goes beyond the explicitly expressed. In fact, studying one's facial expression gives insight into their hidden…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Rim EL Cheikh , Hélène Tran , Issam Falih , Engelbert Mephu Nguifo

Accurate speech emotion recognition is essential for developing human-facing systems. Recent advancements have included finetuning large, pretrained transformer models like Wav2Vec 2.0. However, the finetuning process requires substantial…

Sound · Computer Science 2025-03-07 Aneesha Sampath , James Tavernor , Emily Mower Provost

Feature descriptors of point clouds are used in several applications, such as registration and part segmentation of 3D point clouds. Learning discriminative representations of local geometric features is unquestionably the most important…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Seunghwan Jung , Yeong-Gil Shin , Minyoung Chung

Facial Expression Classification is an interesting research problem in recent years. There are a lot of methods to solve this problem. In this research, we propose a novel approach using Canny, Principal Component Analysis (PCA) and…

Computer Vision and Pattern Recognition · Computer Science 2011-11-18 Le Hoang Thai , Nguyen Do Thai Nguyen , Tran Son Hai

We propose a framework for 2D shape analysis using positive definite kernels defined on Kendall's shape manifold. Different representations of 2D shapes are known to generate different nonlinear spaces. Due to the nonlinearity of these…

Computer Vision and Pattern Recognition · Computer Science 2014-12-16 Sadeep Jayasumana , Mathieu Salzmann , Hongdong Li , Mehrtash Harandi

Behavioural metrics have been shown to be an effective mechanism for constructing representations in reinforcement learning. We present a novel perspective on behavioural metrics for Markov decision processes via the use of positive…

Machine Learning · Computer Science 2023-11-01 Pablo Samuel Castro , Tyler Kastner , Prakash Panangaden , Mark Rowland

Emotion detection in older adults is crucial for understanding their cognitive and emotional well-being, especially in hospital and assisted living environments. In this work, we investigate an edge-based, non-obtrusive approach to emotion…

Human-Computer Interaction · Computer Science 2025-07-14 Md. Saif Hassan Onim , Andrew M. Kiselica , Himanshu Thapliyal

In this paper we propose an easiest approach for facial expression recognition. Here we are using concept of SVM for Expression Classification. Main problem is sub divided in three main modules. First one is Face detection in which we are…

Computer Vision and Pattern Recognition · Computer Science 2013-05-14 Preeti Badar , Urmila Shrawankar

Automatic emotion recognition has recently gained significant attention due to the growing popularity of deep learning algorithms. One of the primary challenges in emotion recognition is effectively utilizing the various cues (modalities)…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Mijanur Palash , Bharat Bhargava

Recognizing facial expressions from static images or video sequences is a widely studied but still challenging problem. The recent progresses obtained by deep neural architectures, or by ensembles of heterogeneous models, have shown that…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Lisa Graziani , Stefano Melacci , Marco Gori

This study investigates the efficacy of facial micro-expressions as a soft biometric for enhancing person recognition, aiming to broaden the understanding of the subject and its potential applications. We propose a deep learning approach…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Tuval Kay , Yuval Ringel , Khen Cohen , Mor-Avi Azulay , David Mendlovic

In the context of artificial intelligence, the inherent human attribute of engaging in logical reasoning to facilitate decision-making is mirrored by the concept of explainability, which pertains to the ability of a model to provide a clear…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Francesco Di Luzio , Antonello Rosato , Massimo Panella

There are a variety of features of the human voice that can be classified as pitch, timbre, loudness, and vocal tone. It is observed in numerous incidents that human expresses their feelings using different vocal qualities when they are…

For many years, the emotion recognition task has remained one of the most interesting and important problems in the field of human-computer interaction. In this study, we consider the emotion recognition task as a classification as well as…

Computer Vision and Pattern Recognition · Computer Science 2020-06-22 Denis Rangulov , Muhammad Fahim

Facial expression recognition (FER) methods have made great inroads in categorising moods and feelings in humans. Beyond FER, pain estimation methods assess levels of intensity in pain expressions, however assessing the quality of all…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Shuchao Duan , Amirhossein Dadashzadeh , Alan Whone , Majid Mirmehdi

We have developed convolutional neural networks (CNN) for a facial expression recognition task. The goal is to classify each facial image into one of the seven facial emotion categories considered in this study. We trained CNN models with…

Computer Vision and Pattern Recognition · Computer Science 2017-04-25 Shima Alizadeh , Azar Fazel

Facial expressions are an important way through which humans interact socially. Building a system capable of automatically recognizing facial expressions from images and video has been an intense field of study in recent years. Interpreting…

Computer Vision and Pattern Recognition · Computer Science 2016-06-13 Ciprian Corneanu , Marc Oliu , Jeffrey F. Cohn , Sergio Escalera