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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

Facial expressions play a fundamental role in human communication. Indeed, they typically reveal the real emotional status of people beyond the spoken language. Moreover, the comprehension of human affect based on visual patterns is a key…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Fabio Valerio Massoli , Donato Cafarelli , Giuseppe Amato , Fabrizio Falchi

Facial expressions are an integral part of human cognition and communication, and can be applied in various real life applications. A vital precursor to accurate expression recognition is feature extraction. In this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2020-05-27 Rahul Islam , Karan Ahuja , Sandip Karmakar , Ferdous Barbhuiya

Event-based cameras are bio-inspired sensors that asynchronously capture pixel intensity changes with microsecond latency, high temporal resolution, and high dynamic range, providing information on the spatiotemporal dynamics of a scene. We…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Rodrigo Verschae , Ignacio Bugueno-Cordova

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

Human face analysis is an important task in computer vision. According to cognitive-psychological studies, facial dynamics could provide crucial cues for face analysis. The motion of a facial local region in facial expression is related to…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Seong Tae Kim , Yong Man Ro

Facial expression recognition is a challenging task when neural network is applied to pattern recognition. Most of the current recognition research is based on single source facial data, which generally has the disadvantages of low accuracy…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Yi Han , Xubin Wang , Zhengyu Lu

Expression recognition holds great promise for applications such as content recommendation and mental healthcare by accurately detecting users' emotional states. Traditional methods often rely on cameras or wearable sensors, which raise…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Guangjing Wang , Juexing Wang , Ce Zhou , Weikang Ding , Huacheng Zeng , Tianxing Li , Qiben Yan

We present a new facial recognition system, capable of identifying a person, provided their likeness has been previously stored in the system, in real time. The system is based on storing and comparing facial embeddings of the subject, and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Ashish Ranjan , Varun Nagesh Jolly Behera , Motahar Reza

We have developed a convolutional neural network for the purpose of recognizing facial expressions in human beings. We have fine-tuned the existing convolutional neural network model trained on the visual recognition dataset used in the…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Viraj Mavani , Shanmuganathan Raman , Krishna P Miyapuram

Face recognition from image or video is a popular topic in biometrics research. Many public places usually have surveillance cameras for video capture and these cameras have their significant value for security purpose. It is widely…

Computer Vision and Pattern Recognition · Computer Science 2013-02-27 Faizan Ahmad , Aaima Najam , Zeeshan Ahmed

Recently, event cameras have shown large applicability in several computer vision fields especially concerning tasks that require high temporal resolution. In this work, we investigate the usage of such kind of data for emotion recognition…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Lorenzo Berlincioni , Luca Cultrera , Chiara Albisani , Lisa Cresti , Andrea Leonardo , Sara Picchioni , Federico Becattini , Alberto Del Bimbo

Face recognition presents a challenging problem in the field of image analysis and computer vision. The security of information is becoming very significant and difficult. Security cameras are presently common in airports, Offices,…

Computer Vision and Pattern Recognition · Computer Science 2014-03-04 Divyarajsinh N. Parmar , Brijesh B. Mehta

The diversity of facial shapes and motions among persons is one of the greatest challenges for automatic analysis of facial expressions. In this paper, we propose a feature describing expression intensity over time, while being invariant to…

Computer Vision and Pattern Recognition · Computer Science 2018-05-04 Maren Awiszus , Stella Graßhof , Felix Kuhnke , Jörn Ostermann

Temporal context is key to the recognition of expressions of emotion. Existing methods, that rely on recurrent or self-attention models to enforce temporal consistency, work on the feature level, ignoring the task-specific temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Enrique Sanchez , Mani Kumar Tellamekala , Michel Valstar , Georgios Tzimiropoulos

This study proposes a novel approach for real-time facial expression recognition utilizing short-range Frequency-Modulated Continuous-Wave (FMCW) radar equipped with one transmit (Tx), and three receive (Rx) antennas. The system leverages…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Sabri Mustafa Kahya , Muhammet Sami Yavuz , Eckehard Steinbach

Critical obstacles in training classifiers to detect facial actions are the limited sizes of annotated video databases and the relatively low frequencies of occurrence of many actions. To address these problems, we propose an approach that…

Computer Vision and Pattern Recognition · Computer Science 2020-10-22 Koichiro Niinuma , Itir Onal Ertugrul , Jeffrey F Cohn , László A Jeni

We present a glasses type wearable device to detect emotions from a human face in an unobtrusive manner. The device is designed to gather multi channel responses from the user face naturally and continuously while the user is wearing it.…

Human-Computer Interaction · Computer Science 2024-10-30 Jangho Kwon , Laehyun Kim

Deep Neural Networks (DNNs) have shown to outperform traditional methods in various visual recognition tasks including Facial Expression Recognition (FER). In spite of efforts made to improve the accuracy of FER systems using DNN, existing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Behzad Hasani , Mohammad H. Mahoor

Understanding the mental state of other people is an important skill for intelligent agents and robots to operate within social environments. However, the mental processes involved in `mind-reading' are complex. One explanation of such…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Jonathan Vitale , Mary-Anne Williams , Benjamin Johnston , Giuseppe Boccignone
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