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Existing multimodal stress/pain recognition approaches generally extract features from different modalities independently and thus ignore cross-modality correlations. This paper proposes a novel geometric framework for multimodal…

Machine Learning · Computer Science 2022-07-20 Yujin WU , Mohamed Daoudi , Ali Amad , Laurent Sparrow , Fabien D'Hondt

The current practice for assessing neonatal postoperative pain relies on bedside caregivers. This practice is subjective, inconsistent, slow, and discontinuous. To develop a reliable medical interpretation, several automated approaches have…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Md Sirajus Salekin , Ghada Zamzmi , Dmitry Goldgof , Rangachar Kasturi , Thao Ho , Yu Sun

In response to the COVID-19 pandemic, traditional physical classrooms have transitioned to online environments, necessitating effective strategies to ensure sustained student engagement. A significant challenge in online teaching is the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-20 Rekha R Nair , Tina Babu , Pavithra K

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

Transfer learning using pre-trained Convolutional Neural Networks (CNNs) has been successfully applied to images for different classification tasks. In this paper, we propose a new pipeline for pain expression recognition in neonates using…

Computer Vision and Pattern Recognition · Computer Science 2018-07-05 Ghada Zamzmi , Dmitry Goldgof , Rangachar Kasturi , Yu Sun

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

Assessing pain in patients unable to speak (also called non-verbal patients) is extremely complicated and often is done by clinical judgement. However, this method is not reliable since patients vital signs can fluctuate significantly due…

Machine Learning · Computer Science 2020-12-29 Raul Fernandez Rojas , Julio Romero , Jehu Lopez-Aparicio , Keng-Liang Ou

In recent years, Affective Computing and its applications have become a fast-growing research topic. Furthermore, the rise of Deep Learning has introduced significant improvements in the emotion recognition system compared to classical…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Joaquim Comas , Decky Aspandi , Xavier Binefa

In recent years, the use of bio-sensing signals such as electroencephalogram (EEG), electrocardiogram (ECG), etc. have garnered interest towards applications in affective computing. The parallel trend of deep-learning has led to a huge leap…

Machine Learning · Computer Science 2019-05-20 Siddharth Siddharth , Tzyy-Ping Jung , Terrence J. Sejnowski

Facial pain expression is an important modality for assessing pain, especially when the patient's verbal ability to communicate is impaired. The facial muscle-based action units (AUs), which are defined by the Facial Action Coding System…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Zhanli Chen , Rashid Ansari , Diana Wilkie

Facial expression recognition is a crucial component in enhancing human-computer interaction and developing emotion-aware systems. Real-time detection and interpretation of facial expressions have become increasingly important for various…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Talha Enes Koksal , Abdurrahman Gumus

Algorithmic detection of facial palsy offers the potential to improve current practices, which usually involve labor-intensive and subjective assessment by clinicians. In this paper, we present a multimodal fusion-based deep learning model…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Heng Yim Nicole Oo , Min Hun Lee , Jeong Hoon Lim

Limited labeled data are available for the research of estimating facial expression intensities. For instance, the ability to train deep networks for automated pain assessment is limited by small datasets with labels of patient-reported…

Computer Vision and Pattern Recognition · Computer Science 2017-06-02 Feng Wang , Xiang Xiang , Chang Liu , Trac D. Tran , Austin Reiter , Gregory D. Hager , Harry Quon , Jian Cheng , Alan L. Yuille

In this paper, we propose a new approach for facial expression recognition using deep covariance descriptors. The solution is based on the idea of encoding local and global Deep Convolutional Neural Network (DCNN) features extracted from…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Naima Otberdout , Anis Kacem , Mohamed Daoudi , Lahoucine Ballihi , Stefano Berretti

Recently, the recognition task of spontaneous facial micro-expressions has attracted much attention with its various real-world applications. Plenty of handcrafted or learned features have been employed for a variety of classifiers and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-16 Zhaoqiang Xia , Xiaopeng Hong , Xingyu Gao , Xiaoyi Feng , Guoying Zhao

Automated facial expression analysis has a variety of applications in human-computer interaction. Traditional methods mainly analyze prototypical facial expressions of no more than eight discrete emotions as a classification task. However,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-04 Feng Zhou , Shu Kong , Charless Fowlkes , Tao Chen , Baiying Lei

Video-based emotion recognition is a challenging task because it requires to distinguish the small deformations of the human face that represent emotions, while being invariant to stronger visual differences due to different identities.…

Machine Learning · Computer Science 2019-10-07 Masih Aminbeidokhti , Marco Pedersoli , Patrick Cardinal , Eric Granger

Although pain is frequent in old age, older adults are often undertreated for pain. This is especially the case for long-term care residents with moderate to severe dementia who cannot report their pain because of cognitive impairments that…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Siavash Rezaei , Abhishek Moturu , Shun Zhao , Kenneth M. Prkachin , Thomas Hadjistavropoulos , Babak Taati

Automatic affect recognition is a challenging task due to the various modalities emotions can be expressed with. Applications can be found in many domains including multimedia retrieval and human computer interaction. In recent years, deep…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Panagiotis Tzirakis , George Trigeorgis , Mihalis A. Nicolaou , Björn Schuller , Stefanos Zafeiriou

Deep learning models have shown promising results in recognizing depressive states using video-based facial expressions. While successful models typically leverage using 3D-CNNs or video distillation techniques, the different use of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Manuel Lage Cañellas , Constantino Álvarez Casado , Le Nguyen , Miguel Bordallo López