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Related papers: Cardiac Output Prediction from Echocardiograms: Se…

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Cardiac motion tracking from echocardiography can be used to estimate and quantify myocardial motion within a cardiac cycle. It is a cost-efficient and effective approach for assessing myocardial function. However, ultrasound imaging has…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Long Teng , Wei Feng , Menglong Zhu , Xinchao Li

Segmenting internal structure from echocardiography is essential for the diagnosis and treatment of various heart diseases. Semi-supervised learning shows its ability in alleviating annotations scarcity. While existing semi-supervised…

Image and Video Processing · Electrical Eng. & Systems 2024-12-03 Xiaoxiang Han , Yiman Liu , Jiang Shang , Qingli Li , Jiangang Chen , Menghan Hu , Qi Zhang , Yuqi Zhang , Yan Wang

Semi-supervised learning (SSL) has achieved great success in leveraging a large amount of unlabeled data to learn a promising classifier. A popular approach is pseudo-labeling that generates pseudo labels only for those unlabeled data with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Qinyi Deng , Yong Guo , Zhibang Yang , Haolin Pan , Jian Chen

Purpose: Laparoscopic cholecystectomy (LC) operative difficulty (LCOD) is highly variable and influences outcomes. Despite extensive LC studies in surgical workflow analysis, limited efforts explore LCOD using intraoperative video data.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-23 Saurav Sharma , Maria Vannucci , Leonardo Pestana Legori , Mario Scaglia , Giovanni Guglielmo Laracca , Didier Mutter , Sergio Alfieri , Pietro Mascagni , Nicolas Padoy

Coronary angiography is the reference standard for evaluating coronary artery disease, yet visual interpretation remains variable between readers. Existing artificial intelligence methods typically analyze single frames or projections and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Sarra Harrabi , Yichen Wu , Geoffrey H. Tison , Minhaj Ansari , Milos Vukadinovic , David Ouyang , Joshua P. Barrios , Jacques Delfrate , Robert Avram

Non-contrast computed tomography calcium scoring (CTCS) is a cost-effective imaging modality widely used to detect coronary artery calcifications. This study aimed to develop an advanced machine learning framework that utilizes quantitative…

Computational analysis on physiological signals would provide immense impact for enabling automated clinical analytics. However, the class imbalance issue where negative or minority class instances are rare in number impairs the robustness…

Medical Physics · Physics 2018-12-19 Arijit Ukil , Soma Bandyopadhyay , Chetanya Puri , Rituraj Singh , Arpan Pal

Cardiovascular diseases (CVD) can be diagnosed using various diagnostic modalities. The electrocardiogram (ECG) is a cost-effective and widely available diagnostic aid that provides functional information of the heart. However, its ability…

Signal Processing · Electrical Eng. & Systems 2025-01-09 Özgün Turgut , Philip Müller , Paul Hager , Suprosanna Shit , Sophie Starck , Martin J. Menten , Eimo Martens , Daniel Rueckert

Incidental detection and quantification of coronary calcium in CT scans could lead to the early introduction of lifesaving clinical interventions. However, over-reporting could negatively affect patient wellbeing and unnecessarily burden…

Image and Video Processing · Electrical Eng. & Systems 2025-06-05 Olivier Jaubert , Salman Mohammadi , Keith A. Goatman , Shadia S. Mikhael , Conor Bradley , Rebecca Hughes , Richard Good , John H. Hipwell , Sonia Dahdouh

Recent advances in large language models (LLMs) have enabled the development of multimodal medical AI. While models such as MedGemini achieve high accuracy on VQA tasks like USMLE MM, their performance on ECG based tasks remains limited,…

Machine Learning · Computer Science 2026-02-12 Junichiro Takahashi , Masataka Sato , Satoshi Kodeta , Norihiko Takeda

Semi-supervised learning (SSL) leverages both labeled and unlabeled data for training models when the labeled data is limited and the unlabeled data is vast. Frequently, the unlabeled data is more widely available than the labeled data,…

Image and Video Processing · Electrical Eng. & Systems 2022-11-07 Isaac Benavides-Mata , Saul Calderon-Ramirez

Prior works on self-supervised pre-training focus on the joint training scenario, where massive unlabeled data are assumed to be given as input all at once, and only then is a learner trained. Unfortunately, such a problem setting is often…

Machine Learning · Computer Science 2022-07-22 Dapeng Hu , Shipeng Yan , Qizhengqiu Lu , Lanqing Hong , Hailin Hu , Yifan Zhang , Zhenguo Li , Xinchao Wang , Jiashi Feng

Synthetic Aperture Sonar (SAS) imaging has become a crucial technology for underwater exploration because of its unique ability to maintain resolution at increasing ranges, a characteristic absent in conventional sonar techniques. However,…

Signal Processing · Electrical Eng. & Systems 2023-08-24 Brandon Sheffield , Frank E. Bobe , Bradley Marchand , Matthew S. Emigh

Automated cardiac interpretation in resource-constrained settings (RCS) is often hindered by poor-quality echocardiographic imaging, limiting the effectiveness of downstream diagnostic models. While super-resolution (SR) techniques have…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Krishan Agyakari Raja Babu , Om Prabhu , Annu , Mohanasankar Sivaprakasam

Learning rich visual representations using contrastive self-supervised learning has been extremely successful. However, it is still a major question whether we could use a similar approach to learn superior auditory representations. In this…

Sound · Computer Science 2020-10-20 Haider Al-Tahan , Yalda Mohsenzadeh

Different self-supervised tasks (SSL) reveal different features from the data. The learned feature representations can exhibit different performance for each downstream task. In this light, this work aims to combine Multiple SSL tasks…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Arun Balajee Vasudevan , Dengxin Dai , Luc Van Gool

Semi-supervised image classification has shown substantial progress in learning from limited labeled data, but recent advances remain largely untested for clinical applications. Motivated by the urgent need to improve timely diagnosis of…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Zhe Huang , Gary Long , Benjamin Wessler , Michael C. Hughes

Semi-supervised learning acts as an effective way to leverage massive unlabeled data. In this paper, we propose a novel training strategy, termed as Semi-supervised Contrastive Learning (SsCL), which combines the well-known contrastive loss…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Yuhang Zhang , Xiaopeng Zhang , Robert. C. Qiu , Jie Li , Haohang Xu , Qi Tian

Accurate and contrast-free Major Adverse Cardiac Events (MACE) prediction from Cine MRI sequences remains a critical challenge. Existing methods typically necessitate supervised learning based on human-refined masks in the ventricular…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Haoyang Su , Shaohao Rui , Jinyi Xiang , Lianming Wu , Xiaosong Wang

We present a method for training neural networks with synthetic electrocardiograms that mimic signals produced by a wearable single lead electrocardiogram monitor. We use domain randomization where the synthetic signal properties such as…

Machine Learning · Computer Science 2021-11-12 Matti Kaisti , Juho Laitala , Antti Airola