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Graph-based medical image segmentation represents anatomical structures using boundary graphs, providing fixed-topology landmarks and inherent population-level correspondences. However, their clinical adoption has been hindered by a major…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Nicolás Gaggion , Maria J. Ledesma-Carbayo , Stergios Christodoulidis , Maria Vakalopoulou , Enzo Ferrante

Facial expression recognition (FER) is vital for human-computer interaction and emotion analysis, yet recognizing expressions in low-resolution images remains challenging. This paper introduces a practical method called Dynamic Resolution…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Songpan Wang , Xu Li , Tianxiang Jiang , Yuanlun Xie

Facial Expression Recognition (FER) is an active research domain that has shown great progress recently, notably thanks to the use of large deep learning models. However, such approaches are particularly energy intensive, which makes their…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Sami Barchid , Benjamin Allaert , Amel Aissaoui , José Mennesson , Chaabane Djéraba

In 2D+3D facial expression recognition (FER), existing methods generate multi-view geometry maps to enhance the depth feature representation. However, this may introduce false estimations due to local plane fitting from incomplete point…

Computer Vision and Pattern Recognition · Computer Science 2020-11-18 Yang Jiao , Yi Niu , Trac D. Tran , Guangming Shi

Modern data analysis pipelines are becoming increasingly complex due to the presence of multi-view information sources. While graphs are effective in modeling complex relationships, in many scenarios a single graph is rarely sufficient to…

Machine Learning · Statistics 2019-04-02 Uday Shankar Shanthamallu , Jayaraman J. Thiagarajan , Huan Song , Andreas Spanias

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

Emotion Recognition (ER) is the process of analyzing and identifying human emotions from sensing data. Currently, the field heavily relies on facial expression recognition (FER) because visual channel conveys rich emotional cues. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Kejun Liu , Yuanyuan Liu , Lin Wei , Chang Tang , Yibing Zhan , Zijing Chen , Zhe Chen

Existing graph clustering networks heavily rely on a predefined yet fixed graph, which can lead to failures when the initial graph fails to accurately capture the data topology structure of the embedding space. In order to address this…

Machine Learning · Computer Science 2023-11-15 Zhihao Peng , Hui Liu , Yuheng Jia , Junhui Hou

Most existing AU detection works considering AU relationships are relying on probabilistic graphical models with manually extracted features. This paper proposes an end-to-end deep learning framework for facial AU detection with graph…

Computer Vision and Pattern Recognition · Computer Science 2020-01-03 Zhilei Liu , Jiahui Dong , Cuicui Zhang , Longbiao Wang , Jianwu Dang

Meaningful facial parts can convey key cues for both facial action unit detection and expression prediction. Textured 3D face scan can provide both detailed 3D geometric shape and 2D texture appearance cues of the face which are beneficial…

Computer Vision and Pattern Recognition · Computer Science 2018-03-16 Asim Jan , Huaxiong Ding , Hongying Meng , Liming Chen , Huibin Li

Facial Expression Recognition (FER) uses images of faces to identify the emotional state of users, allowing for a closer interaction between humans and autonomous systems. Unfortunately, as the images naturally integrate some demographic…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Iris Dominguez-Catena , Daniel Paternain , Mikel Galar

In this paper, a deep learning framework is proposed for automatic facial emotion based on deep convolutional networks. In order to increase the generalization ability and the robustness of the method, the dataset size is increased by…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Serap Kırbız

Emotion recognition from facial images is a crucial task in human-computer interaction, enabling machines to learn human emotions through facial expressions. Previous studies have shown that facial images can be used to train deep learning…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Israel Juárez-Jiménez , Tiffany Guadalupe Martínez Paredes , Jesús García-Ramírez , Eric Ramos Aguilar

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

Occlusion and pose variations, which can change facial appearance significantly, are two major obstacles for automatic Facial Expression Recognition (FER). Though automatic FER has made substantial progresses in the past few decades,…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Kai Wang , Xiaojiang Peng , Jianfei Yang , Debin Meng , Yu Qiao

We present an algorithm for extracting key-point descriptors using deep convolutional neural networks (CNN). Unlike many existing deep CNNs, our model computes local features around a given point in an image. We also present a face…

Computer Vision and Pattern Recognition · Computer Science 2016-02-01 Amit Kumar , Rajeev Ranjan , Vishal Patel , Rama Chellappa

Graph Neural Networks (GNNs) have been shown to be a powerful tool for generating predictions from biological data. Their application to neuroimaging data such as functional magnetic resonance imaging (fMRI) scans has been limited. However,…

Image and Video Processing · Electrical Eng. & Systems 2021-12-03 Katharina Zühlsdorff , Clayton M. Rabideau

Automatic facial emotion recognition is a challenging task that has gained significant scientific interest over the past few years, but the problem of emotion recognition for a group of people has been less extensively studied. However, it…

Computer Vision and Pattern Recognition · Computer Science 2019-05-06 Samanyou Garg

Graphs are essential for modeling complex relationships and capturing structured interactions in data. Graph Neural Networks (GNNs) are particularly effective when such relational structure is explicitly available, but many real-world…

Graphics · Computer Science 2026-03-02 Haozhe Chen , Soheila Farokhi , Kelvyn Bladen , Hamid Karimi , Kevin R. Moon

Face parsing is an important problem in computer vision that finds numerous applications including recognition and editing. Recently, deep convolutional neural networks (CNNs) have been applied to image parsing and segmentation with the…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Sifei Liu , Jianping Shi , Ji Liang , Ming-Hsuan Yang