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Continuous assessment of task difficulty and mental workload is essential in improving the usability and accessibility of interactive systems. Eye tracking data has often been investigated to achieve this ability, with reports on the…

Human-Computer Interaction · Computer Science 2021-02-15 Youngjun Cho

Previous approaches to model and analyze facial expression analysis use three different techniques: facial action units, geometric features and graph based modelling. However, previous approaches have treated these technique separately.…

Computer Vision and Pattern Recognition · Computer Science 2016-06-03 Mehdi Ghayoumi , Arvind K Bansal

Automatic machine-based Facial Expression Analysis (FEA) has made substantial progress in the past few decades driven by its importance for applications in psychology, security, health, entertainment and human computer interaction. The vast…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 Ligang Zhang , Brijesh Verma , Dian Tjondronegoro , Vinod Chandran

Facial micro-expressions indicate brief and subtle facial movements that appear during emotional communication. In comparison to macro-expressions, micro-expressions are more challenging to be analyzed due to the short span of time and the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Hong-Xia Xie , Ling Lo , Hong-Han Shuai , Wen-Huang Cheng

Face recognition system is one of the esteemed research areas in pattern recognition and computer vision as long as its major challenges. A few challenges in recognizing faces are blur, illumination, and varied expressions. Blur is natural…

Computer Vision and Pattern Recognition · Computer Science 2019-03-01 Anubha Pearline. S , Hemalatha. M

Facial emotion recognition is the task to classify human emotions in face images. It is a difficult task due to high aleatoric uncertainty and visual ambiguity. A large part of the literature aims to show progress by increasing accuracy on…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Maryam Matin , Matias Valdenegro-Toro

One of the most common problems encountered in human-computer interaction is automatic facial expression recognition. Although it is easy for human observer to recognize facial expressions, automatic recognition remains difficult for…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mohamad Roshanzamir , Roohallah Alizadehsani , Mahdi Roshanzamir , Afshin Shoeibi , Juan M. Gorriz , Abbas Khosrave , Saeid Nahavandi

Facial expressions, vital in non-verbal human communication, have found applications in various computer vision fields like virtual reality, gaming, and emotional AI assistants. Despite advancements, many facial expression generation models…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Hamza Bouzid , Lahoucine Ballihi

Detect facial keypoints is a critical element in face recognition. However, there is difficulty to catch keypoints on the face due to complex influences from original images, and there is no guidance to suitable algorithms. In this paper,…

Machine Learning · Statistics 2017-10-17 Shenghao Shi

Over the last few years, automatic facial micro-expression analysis has garnered increasing attention from experts across different disciplines because of its potential applications in various fields such as clinical diagnosis, forensic…

Computer Vision and Pattern Recognition · Computer Science 2018-06-18 Yee-Hui Oh , John See , Anh Cat Le Ngo , Raphael Chung-Wei Phan , Vishnu Monn Baskaran

Facial affective behavior analysis (FABA) is crucial for understanding human mental states from images. However, traditional approaches primarily deploy models to discriminate among discrete emotion categories, and lack the fine granularity…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yifan Li , Anh Dao , Wentao Bao , Zhen Tan , Tianlong Chen , Huan Liu , Yu Kong

Facial expression classification is a kind of image classification and it has received much attention, in recent years. There are many approaches to solve these problems with aiming to increase efficient classification. One of famous…

Computer Vision and Pattern Recognition · Computer Science 2011-07-19 Thai Le , Phat Tat , Hai Tran

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

Dynamic facial expression recognition has many useful applications in social networks, multimedia content analysis, security systems and others. This challenging process must be done under recurrent problems of image illumination and low…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Ali Raza Shahid , Sheheryar Khan , Hong Yan

Facial analysis has attracted much attention in the technology for human-machine interface. Different methods of classification based on sparse representation and Gabor kernels have been widely applied in the fields of facial analysis.…

Computer Vision and Pattern Recognition · Computer Science 2014-09-04 Hongli Liu , Weifeng Liu , Yanjiang Wang

Pain monitoring is essential to the quality of care for patients undergoing a medical procedure with sedation. An automated mechanism for detecting pain could improve sedation dose titration. Previous studies on facial pain detection have…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Y. Zarghami , S. Mafeld , A. Conway , B. Taati

Facial animation is a core component for creating digital characters in Computer Graphics (CG) industry. A typical production workflow relies on sparse, semantically meaningful keyframes to precisely control facial expressions. Enabling…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Jingchao Wu , Zejian Kang , Haibo Liu , Yuanchen Fei , Xiangru Huang

Facial expression recognition has gained significance as a means of imparting social robots with the capacity to discern the emotional states of users. The use of social robotics includes a variety of settings, including homes, nursing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 F. Xavier Gaya-Morey , Silvia Ramis , Jose M. Buades-Rubio , Cristina Manresa-Yee

Nowadays, it is possible to scan faces and automatically register them with high quality. However, the resulting face meshes often need further processing: we need to stabilize them to remove unwanted head movement. Stabilization is…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Jan Bednarik , Erroll Wood , Vasileios Choutas , Timo Bolkart , Daoye Wang , Chenglei Wu , Thabo Beeler

This work represents the experimental and development process of system facial expression recognition and facial stress analysis algorithms for an immersive digital learning platform. The system retrieves from users web camera and evaluates…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Fabio Cacciatori , Sergei Nikolaev , Dmitrii Grigorev , Anastasiia Archangelskaya