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Micro-expression analysis has applications in domains such as Human-Robot Interaction and Driver Monitoring Systems. Accurately capturing subtle and fast facial movements remains difficult when relying solely on RGB cameras, due to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-22 Nicolas Mastropasqua , Ignacio Bugueno-Cordova , Rodrigo Verschae , Daniel Acevedo , Pablo Negri , Maria E. Buemi

Automated human emotion recognition from facial expressions is a well-studied problem and still remains a very challenging task. Some efficient or accurate deep learning models have been presented in the literature. However, it is quite…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Monu Verma , Murari Mandal , Satish Kumar Reddy , Yashwanth Reddy Meedimale , Santosh Kumar Vipparthi

Face recognition is one of the most studied research topics in the community. In recent years, the research on face recognition has shifted to using 3D facial surfaces, as more discriminating features can be represented by the 3D geometric…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Yaping Jing , Xuequan Lu , Shang Gao

Emotion recognition based on electroencephalography (EEG) has received attention as a way to implement human-centric services. However, there is still much room for improvement, particularly in terms of the recognition accuracy. In this…

Human-Computer Interaction · Computer Science 2018-09-13 Seong-Eun Moon , Soobeom Jang , Jong-Seok Lee

Human activity recognition is one of the important research topics in computer vision and video understanding. It is often assumed that high quality video sequences are available for recognition. However, relaxing such a requirement and…

Multimedia · Computer Science 2017-10-02 Jun-Ho Choi , Manri Cheon , Min-Su Choi , Jong-Seok Lee

The significance of emotion detection is increasing in education, entertainment, and various other domains. We are developing a system that can identify and transform facial expressions into emojis to provide immediate feedback.The project…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Abhilash Khuntia , Shubham Kale

Feature descriptors involved in image processing are generally manually chosen and high dimensional in nature. Selecting the most important features is a very crucial task for systems like facial expression recognition. This paper…

Computer Vision and Pattern Recognition · Computer Science 2018-01-26 Muhammad Usman , Siddique Latif , Junaid Qadir

Face recognition in collaborative learning videos presents many challenges. In collaborative learning videos, students sit around a typical table at different positions to the recording camera, come and go, move around, get partially or…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Phuong Tran , Marios Pattichis , Sylvia Celedón-Pattichis , Carlos LópezLeiva

Micro-expressions are nonverbal facial expressions that reveal the covert emotions of individuals, making the micro-expression recognition task receive widespread attention. However, the micro-expression recognition task is challenging due…

Image and Video Processing · Electrical Eng. & Systems 2024-06-13 Ren Zhang , Jianqin Yin , Chao Qi , Zehao Wang , Zhicheng Zhang , Yonghao Dang

Engagement is a key indicator of the quality of learning experience, and one that plays a major role in developing intelligent educational interfaces. Any such interface requires the ability to recognise the level of engagement in order to…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Omid Mohamad Nezami , Mark Dras , Len Hamey , Deborah Richards , Stephen Wan , Cecile Paris

This paper develops a mathematical argument and algorithms for building representations of data from event-based cameras, that we call Fast Feature Field ($\text{F}^3$). We learn this representation by predicting future events from past…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Richeek Das , Kostas Daniilidis , Pratik Chaudhari

Facial emotion recognition is a vast and complex problem space within the domain of computer vision and thus requires a universally accepted baseline method with which to evaluate proposed models. While test datasets have served this…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Nyle Siddiqui , Rushit Dave , Tyler Bauer , Thomas Reither , Dylan Black , Mitchell Hanson

Face recognition has been of great importance in many applications as a biometric for its throughput, convenience, and non-invasiveness. Recent advancements in deep Convolutional Neural Network (CNN) architectures have boosted significantly…

Computer Vision and Pattern Recognition · Computer Science 2020-10-01 Zhiqian You , Tingting Yang , Miao Jin

Face detection is a widely studied problem over the past few decades. Recently, significant improvements have been achieved via the deep neural network, however, it is still challenging to directly apply these techniques to mobile devices…

Computer Vision and Pattern Recognition · Computer Science 2019-04-30 Heming Zhang , Xiaolong Wang , Jingwen Zhu , C. -C. Jay Kuo

Speech-driven 3D facial animation technology has been developed for years, but its practical application still lacks expectations. The main challenges lie in data limitations, lip alignment, and the naturalness of facial expressions.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Xiangyu Liang , Wenlin Zhuang , Tianyong Wang , Guangxing Geng , Guangyue Geng , Haifeng Xia , Siyu Xia

Active illumination is a prominent complement to enhance 2D face recognition and make it more robust, e.g., to spoofing attacks and low-light conditions. In the present work we show that it is possible to adopt active illumination to…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 J. Matias Di Martino , Fernando Suzacq , Mauricio Delbracio , Qiang Qiu , Guillermo Sapiro

Detection of human emotions based on facial images in real-world scenarios is a difficult task due to low image quality, variations in lighting, pose changes, background distractions, small inter-class variations, noisy crowd-sourced…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Sahil Naik , Soham Bagayatkar , Pavankumar Singh

Face recognition is a rapidly developing and widely applied aspect of biometric technologies. Its applications are broad, ranging from law enforcement to consumer applications, and industry efficiency and monitoring solutions. The recent…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Andrew Jason Shepley

Event cameras offer unique advantages for facial keypoint alignment under challenging conditions, such as low light and rapid motion, due to their high temporal resolution and robustness to varying illumination. However, existing RGB facial…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Donghwa Kang , Junho Kim , Dongwoo Kang

Over many decades, researchers working in object recognition have longed for an end-to-end automated system that will simply accept 2D or 3D image or videos as inputs and output the labels of objects in the input data. Computer vision…

Computer Vision and Pattern Recognition · Computer Science 2016-01-29 Rama Chellappa , Jun-Cheng Chen , Rajeev Ranjan , Swami Sankaranarayanan , Amit Kumar , Vishal M. Patel , Carlos D. Castillo