Journal ArticleDOI
A Real-Time QRS Detection Algorithm
Jiapu Pan,Willis J. Tompkins +1 more
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TLDR
A real-time algorithm that reliably recognizes QRS complexes based upon digital analyses of slope, amplitude, and width of ECG signals and automatically adjusts thresholds and parameters periodically to adapt to such ECG changes as QRS morphology and heart rate.Abstract:
We have developed a real-time algorithm for detection of the QRS complexes of ECG signals. It reliably recognizes QRS complexes based upon digital analyses of slope, amplitude, and width. A special digital bandpass filter reduces false detections caused by the various types of interference present in ECG signals. This filtering permits use of low thresholds, thereby increasing detection sensitivity. The algorithm automatically adjusts thresholds and parameters periodically to adapt to such ECG changes as QRS morphology and heart rate. For the standard 24 h MIT/BIH arrhythmia database, this algorithm correctly detects 99.3 percent of the QRS complexes.read more
Citations
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Journal ArticleDOI
PPG Sensor Contact Pressure Should Be Taken Into Account for Cuff-Less Blood Pressure Measurement
Anand Chandrasekhar,Mohammad Yavarimanesh,Keerthana Natarajan,Jin-Oh Hahn,Ramakrishna Mukkamala +4 more
TL;DR: This study suggests that widely pursued PPG-based BP measurement devices including those that detect PTT should maintain the CP or include a CP measurement in the calibration equation for deriving BP.
Journal ArticleDOI
Mining Physiological Conditions from Heart Rate Variability Analysis
TL;DR: This article presents a successfully developed methodology for mining physiological conditions from heart rate variability (HRV) analysis: a decision-tree learning method and a hybrid learning method that combines feature selection, feature extraction, and classifier construction processes.
Journal ArticleDOI
Assessing occupants’ personal attributes in relation to human perception of environmental comfort: Measurement procedure and data analysis
Ilaria Pigliautile,Sara Casaccia,Nicole Morresi,Marco Arnesano,Anna Laura Pisello,Gian Marco Revel +5 more
TL;DR: This work demonstrates the strict connection, with a prediction accuracy up to 84%, between physiological parameters (Heart Rate Variability and its indices) and human thermal comfort, opening the perspective of real-time measuring comfort for control and energy management purposes, taking into account human-centric parameters.
Journal ArticleDOI
Does visual fatigue from 3D displays affect autonomic regulation and heart rhythm
TL;DR: The subjects in the 3D-group showed significantly increased heart rates (HR), indicating arousal, and an increased VLF/HF (Very Low Frequency/High Frequency) ratio (a measure of autonomic balance), compared to those in the 2D-groups, indicating that autonomic Balance was not stable in the3D- group.
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ECG steganography using curvelet transform
TL;DR: An attempt has been made to use curvelet transforms which permit identifying the coefficients that store the crucial information about diagnosis in ECG steganography to validate that coefficients around zero are ideal for watermarking to minimize deterioration and there is no loss in the data retrieved.
References
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Journal ArticleDOI
Software QRS detection in ambulatory monitoring--a review.
Olle Pahlm,Leif Sörnmo +1 more
TL;DR: This review asserts that most one-channel QRS detectors described in the literature can be considered as having the same basic structure and a discussion of some of the current detection schemes is presented.
Journal ArticleDOI
Optimal QRS detector.
TL;DR: The problem of detecting the QRS complex in the presence of noise was analysed and an optimised threshold criterion based on FP/FN was developed.
Journal ArticleDOI
Automated High-Speed Analysis of Holter Tapes with Microcomputers
TL;DR: An automated Holtes scanning system based on two microcomputers that detects QRS complexes and measures the QRS durations using computations of first and second derivatives, and can process Holter tapes at 60 times real time and produce printed summaries and 24 h trend plots.
Journal ArticleDOI
Online digital filters for biological signals: some fast designs for a small computer.
TL;DR: The possibilities for extending the class of lowpass recursive digital filters to include high pass, bandpass, and bandstop filters are described, and experience with a PDP 11 computer has shown that these filters may be programmed simply using machine code, and that online operation at sampling rates up to about 8 kHz is possible.
Journal ArticleDOI
A robust-digital QRS-detection algorithm for arrhythmia monitoring
Adriaan Ligtenberg,Murat Kunt +1 more
TL;DR: In this paper a new robust single lead QRS-detection algorithm is presented, allowing real-time applications and results are presented.