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Deploying deep learning (DL) models in medical applications relies on predictive performance and other critical factors, such as conveying trustworthy predictive uncertainty. Uncertainty estimation (UE) methods provide potential solutions…

Image and Video Processing · Electrical Eng. & Systems 2024-03-26 Kudaibergen Abutalip , Numan Saeed , Ikboljon Sobirov , Vincent Andrearczyk , Adrien Depeursinge , Mohammad Yaqub

Medical imaging only indirectly measures the molecular identity of the tissue within each voxel, which often produces only ambiguous image evidence for target measures of interest, like semantic segmentation. This diversity and the…

Human facial action units (AUs) are mutually related in a hierarchical manner, as not only they are associated with each other in both spatial and temporal domains but also AUs located in the same/close facial regions show stronger…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Zihan Wang , Siyang Song , Cheng Luo , Songhe Deng , Weicheng Xie , Linlin Shen

Uncertainty quantification is a key pillar of trustworthy machine learning. It enables safe reactions under unsafe inputs, like predicting only when the machine learning model detects sufficient evidence, discarding anomalous data, or…

Machine Learning · Computer Science 2024-08-27 Michael Kirchhof

Pain is a common occurrence among patients admitted to Intensive Care Units. Pain assessment in ICU patients still remains a challenge for clinicians and ICU staff, specifically in cases of non-verbal sedated, mechanically ventilated, and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Subhash Nerella , Kia Khezeli , Andrea Davidson , Patrick Tighe , Azra Bihorac , Parisa Rashidi

Despite the growing success of Convolution neural networks (CNN) in the recent past in the task of scene segmentation, the standard models lack some of the important features that might result in sub-optimal segmentation outputs. The widely…

Computer Vision and Pattern Recognition · Computer Science 2020-09-16 Soham Chattopadhyay , Hritam Basak

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

Human face exhibits an inherent hierarchy in its representations (i.e., holistic facial expressions can be encoded via a set of facial action units (AUs) and their intensity). Variational (deep) auto-encoders (VAE) have shown great results…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Dieu Linh Tran , Robert Walecki , Ognjen Rudovic , Stefanos Eleftheriadis , Bjørn Schuller , Maja Pantic

Stability for dynamic network embeddings ensures that nodes behaving the same at different times receive the same embedding, allowing comparison of nodes in the network across time. We present attributed unfolded adjacency spectral…

Machine Learning · Statistics 2025-07-02 Emma Ceccherini , Ian Gallagher , Andrew Jones , Daniel Lawson

This paper presents a simple yet effective two-stage framework for semi-supervised medical image segmentation. Unlike prior state-of-the-art semi-supervised segmentation methods that predominantly rely on pseudo supervision directly on…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Huimin Wu , Xiaomeng Li , Kwang-Ting Cheng

Facial expression recognition (FER) remains a challenging task due to label ambiguity caused by the subjective nature of facial expressions and noisy samples. Additionally, class imbalance, which is common in real-world datasets, further…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 JunGyu Lee , Yeji Choi , Haksub Kim , Ig-Jae Kim , Gi Pyo Nam

Micro-expression Action Unit (AU) detection identifies localized AUs from subtle facial muscle activations, providing a foundation for decoding affective cues. Previous methods face three key limitations: (1) heavy reliance on low-density…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Zhishu Liu , Kaishen Yuan , Bo Zhao , Hui Ma , Zitong Yu

Out-of-distribution (OOD) detection targets to detect and reject test samples with semantic shifts, to prevent models trained on in-distribution (ID) dataset from producing unreliable predictions. Existing works only extract the appearance…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Xiang Fang , Arvind Easwaran , Blaise Genest

While 3D facial animation has made impressive progress, challenges still exist in realizing fine-grained stylized 3D facial expression manipulation due to the lack of appropriate datasets. In this paper, we introduce the AUBlendSet, a 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Hao Li , Ju Dai , Feng Zhou , Kaida Ning , Lei Li , Junjun Pan

Auditory attention decoding (AAD) is the process of identifying the attended speech in a multi-talker environment using brain signals, typically recorded through electroencephalography (EEG). Over the past decade, AAD has undergone…

Sound · Computer Science 2025-07-08 Nhan Duc Thanh Nguyen , Huy Phan , Simon Geirnaert , Kaare Mikkelsen , Preben Kidmose

Quantifying uncertainty of predictions has been identified as one way to develop more trustworthy artificial intelligence (AI) models beyond conventional reporting of performance metrics. When considering their role in a clinical decision…

Customizable 3D avatar-based facial expression stimuli may improve user engagement in behavioral biomarker discovery and therapeutic intervention for autism, Alzheimer's disease, facial palsy, and more. However, there is a lack of…

Epicardial adipose tissue (EAT) is a type of visceral fat that can secrete large amounts of adipokines to affect the myocardium and coronary arteries. EAT volume and density can be used as independent risk markers measurement of volume by…

Image and Video Processing · Electrical Eng. & Systems 2024-02-26 Kai Zhao , Zhiming Liu , Jiaqi Liu , Jingbiao Zhou , Bihong Liao , Huifang Tang , Qiuyu Wang , Chunquan Li

Effective feature representation is key to the predictive performance of any algorithm. This paper introduces a meta-procedure, called Non-Euclidean Upgrading (NEU), which learns feature maps that are expressive enough to embed the…

Machine Learning · Statistics 2021-05-11 Anastasis Kratsios , Cody Hyndman

Pose-invariant face recognition refers to the problem of identifying or verifying a person by analyzing face images captured from different poses. This problem is challenging due to the large variation of pose, illumination and facial…

Computer Vision and Pattern Recognition · Computer Science 2020-11-11 In Seop Na , Chung Tran , Dung Nguyen , Sang Dinh