Resources

27 results for "estimation"

Database Open Access

CheXmask-U: Uncertainty Estimation for Landmark-Based Anatomical Segmentation Masks in Chest X-ray Images

Matias Cosarinsky, Nicolas Gaggion, Enzo Ferrante

We present an extended version of the CheXmask dataset, augmenting the original anatomical segmentation masks of chest X-rays with node-wise uncertainty estimates. The dataset retains the comprehensive coverage of five public sources—ChestX-ray8, Ch…
Published: Sept. 2, 2026. Version: 1.0.0
Database Credentialed Access

CardioWave-Portable: a portable ECG and PPG dataset for cuffless blood pressure estimation

Hailin Yang, Lexi Zhang, Hongyu Liu, et al.

CardioWave-Portable is a controlled-access dataset of synchronized single-lead electrocardiography (ECG) and photoplethysmography (PPG) signals acquired with a portable card-type device and paired with cuff-based systolic and diastolic blood pressur…
Published: Sept. 30, 2026. Version: 1.0.0
Database Restricted Access

DREAMT: Dataset for Real-time sleep stage EstimAtion using Multisensor wearable Technology

Ke Wang, Jiamu Yang, Ayush Shetty, et al.

Sleep is an intrinsic part of human life, and recent advancements in wearable technology and machine learning have promised continuous and non-invasive methods of tracking sleep health and patterns, providing an important facet to a more holistic un…
Published: June 2, 2026. Version: 2.2.0
Database Open Access

Quantitative Dehydration Estimation

Quantitative estimation of dehydration (total body water loss) using bioimpedance measurements, temperature measurements, salivary samples, and sweat samples.
Published: Aug. 10, 2017. Version: 1.0.0
Software Open Access

Cardiac Output Estimation from Arterial Blood Pressure Waveforms

This project contains the code used for a study that rigorously compares 11 estimates against thermodilution cardiac output (TCO) using 120 subjects from the MIMIC II database (all subjects for whom multiple TCO measurements were recorded at the tim…
Published: Aug. 2, 2007. Version: 1.0.0
Software Open Access

Sample Entropy Estimation

Sample Entropy is a useful tool for investigating the dynamics of heart rate and other time series. Sample Entropy is the negative natural logarithm of an estimate of the conditional probability that subseries (epochs) of length m that match pointwi…
Published: Nov. 8, 2004. Version: 1.0.0
Software Open Access

Estimating Activity from Instantaneous Heart Rate

Using only a heart rate time series, it is possible to measure a number of features that reflect the level of physical activity. Here we provide software for deriving an "activity index" based on measurements of mean heart rate, total power of the i…
Published: April 18, 2002. Version: 1.0.0
Database Open Access

Brno University of Technology Smartphone PPG Database (BUT PPG)

Andrea Nemcova, Radovan Smisek, Eniko Vargova, et al.

Brno University of Technology Smartphone PPG Database (BUT PPG) is a database created by the cardiology team at the Department of Biomedical Engineering, Brno University of Technology, for the purpose of evaluating PPG quality and estimation of hear…
Published: Aug. 23, 2024. Version: 2.0.0
Challenge Open Access

Early Prediction of Sepsis from Clinical Data: The PhysioNet/Computing in Cardiology Challenge 2019

Matthew Reyna, Chris Josef, Russell Jeter, et al.

Sepsis is a life-threatening condition that occurs when the body's response to infection causes tissue damage, organ failure, or death (Singer et al., 2016). In the U.S., nearly 1.7 million people develop sepsis and 270,000 people die from sepsis ea…
Published: Aug. 5, 2019. Version: 1.0.0
Software Open Access

TWAnalyser - A T-wave Alternans Detector

This software suite consists of Matlab implementations of the widely used Spectral Method (SM) and Modified Moving Average (MMA) for T-wave alternans (TWA) detection. It was initially developed for the PhysioNet/CinC Challenge 2008, in which these a…
ecg
Published: Nov. 18, 2008. Version: 1.0.0