A Constrained Two-Layer Compression Technique for ECG Waves

Byun, Kyungguen ;   Song, Eunwoo ;   Shim, Hwan ;   Lim, Hyungjoon ;   Kang, Hong-Goo

Tags Time-frequency analysis of biosignalsNonstationary processing of biomedical signalsData mining in biosignals

This paper proposes a constrained two-layer compression technique for electrocardiogram (ECG) waves, of which encoded parameters can be...

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A Dynamic Harmonic Regression Algorithm for Time-Frequency Analysis of Neurophysiologic Signals

Krishnaswamy, Pavitra ;   Nolan, Michael ;   Zachs, Daniel ;   Van Dort, Christa ;   Brown, Emery

Tags Nonstationary processing of biomedical signalsTime-frequency analysis of biosignalsParametric filtering and estimation

Neurophysiological signals, such as the electroencephalogram (EEG), exhibit non-stationary behavior in a variety of brain states (e.g., sleep,...

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A Novel Statistical Model for Arterial Blood Pressure Signals

Holland, Alex ;   Asgari, Shadnaz

Tags Biomedical simulation involving signal processingNonstationary processing of biomedical signals

This paper introduces a novel arterial blood pressure (ABP) signal model that generates statistically accurate synthetic signals with known...

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Assessing EEG Slow Wave Activity during Anesthesia using Hilbert-Huang Transform

Kortelainen, Jukka ;   Väyrynen, Eero

Tags Empirical mode decomposition in biosignal analysisNonstationary processing of biomedical signalsTime-frequency analysis of biosignals

Slow waves (< 1 Hz) are considered to be the most important electroencephalogram (EEG) signature of non-rapid eye movement sleep and have...

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Assessment of Cardiorespiratory Interactions in West Syndrome using Phase Rectified Signal Averaging

Varon, Carolina ;   Jansen, Katrien ;   Lagae, Lieven ;   Van Huffel, Sabine

Tags Nonstationary processing of biomedical signalsMultivariate signal processingBiomedical signal classification

West syndrome is an age-dependent epilepsy that deeply affects the cardiorespiratory controls of the autonomic nervous system. This work...

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Attenuation of the Influence of Cardiolocomotor Coupling in Heart Rate Variability Interpretation during Exercise Test

Hernando, Alberto ;   Hernando, David ;   Garatachea, Nuria ;   Bailon, Raquel ;   Casajús, José Antonio

Tags Nonstationary processing of biomedical signalsNonlinear coupling of biomedical signalsTime-frequency analysis of biosignals

During exercise test, cardiolocomotor coupling related components appear in heart rate variability (HRV), blurring its interpretation as...

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Automatic Localization of Epileptic Spikes in EEGs of Children with Infantile Spasms

Traitruengsakul, Supachan ;   Seltzer, Laurie E. ;   Paciorkowski, Alex R. ;   Ghoraani, Behnaz

Tags Biomedical signal classificationNonstationary processing of biomedical signalsTime-frequency analysis of biosignals

A novel methodology is proposed for identifying epileptiform discharges associated with individuals exhibiting Infantile Spasms (ISS) also known...

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Cardiorespiratory Capacity of Heart Rate

Fedotov, Alexander ;   Akulova, Anna ;   Akulov, Sergey

Tags Nonstationary processing of biomedical signalsMultivariate signal processingNonlinear coupling of biomedical signals

This paper considers the novel algorithm for assessment of cardiorespiratory capacity based on the modified phase-rectified signal averaging...

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Characterising Insomnia: A Graph Spectral Theory Approach

Chaparro-Vargas, Ramiro ;   Ahmed, Beena ;   Penzel, Thomas ;   Cvetkovic, Dean

Tags Fuzzy approaches to signal pattern classificationNonlinear filteringNonstationary processing of biomedical signals

This paper introduces a computational approach to characterise healthy controls and insomniacs based on graph spectral theory. Based upon...

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Characterization and Reduction of Motion Artifacts in Photoplethysmographic Signals from a Wrist-Worn Device

Tautan, Alexandra-Maria ;   Young, Alex ;   Wentink, Eva ;   Wieringa, Fokko

Tags Time-frequency analysis of biosignalsTime-scale and waveletsNonstationary processing of biomedical signals

Methods for analyzing various motion artifacts in photoplethysmography (PPG) signals, recorded by a wristworn device are reported. The...

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Combination of Signal Segmentation Approaches using Fuzzy Decision Making

Azami, Hamed ;   Escudero, Javier

Tags Empirical mode decomposition in biosignal analysisNonstationary processing of biomedical signalsTime-frequency analysis of biosignals

Segmentation is an important stage in signal analysis, and its performance evaluation plays a significant role in the efficiency of the...

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Complexity of Cerebral Blood Flow Velocity and Arterial Blood Pressure in Subarachnoid Hemorrhage using Time-Frequency Analysis

Placek, Michal Marcin ;   Wachel, Pawel ;   Czosnyka, Marek ;   Soehle, Martin ;   Smielewski, Peter ;   Kasprowicz, Magdalena

Tags Time-frequency analysis of biosignalsNonstationary processing of biomedical signalsSignal processing in physiological systems

We investigated changes of time-frequency (TF) complexity, in terms of Rényi entropy and a measure of concentration, of middle cerebral...

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Contact-Less Video-Based Tracking of Heart Rate

Bandini, Andrea ;   Orlandi, Silvia ;   Capo, Alessandro ;   Vannetti, Federica ;   Pasquini, Guido ;   Manfredi, Claudia

Tags Nonstationary processing of biomedical signalsTime-frequency analysis of biosignalsTime-scale and wavelets

We present a recursive method for heart rate (HR) estimation from video data capable to track HR variations due to a physical exercise....

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Data-Driven Metric Representing the Maturation of Preterm EEG

Koolen, Ninah ;   Dereymaeker, Anneleen ;   Räsänen, Okko ;   Jansen, Katrien ;   Vervisch, Jan ;   Matic, Vladimir ;   De Vos, Maarten ;   Naulaers, Gunnar ;   Van Huffel, Sabine ;   Vanhatalo, Sampsa

Tags Nonstationary processing of biomedical signalsSignal processing in physiological systems

Essential information about early brain maturation can be retrieved from the preterm human electroencephalogram (EEG). This study proposes...

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Discriminative Sparse Coding of ECG during Ventricular Arrhythmias using a LC-KSVD Approach

Kalaji, Iman ;   Balasundaram, Krishnanand ;   Umapathy, Karthikeyan

Tags Time-frequency analysis of biosignalsTime-scale and waveletsNonstationary processing of biomedical signals

Ventricular tachycardia (VT) and ventricular fibrillation (VF) are two major types of ventricular arrhythmias that results due to...

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Distinguishing Healthy Physiological from Parkinson's Tremor

Spasov, Simeon ;   Ozanyan, Krikor

Tags Adaptive filteringNonstationary processing of biomedical signals

Spectral classification methodologies have been employed to extract data from Parkinson’s tremors. However, the benefits of isolating healthy...

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EEG-Based Index for Engagement Level Monitoring during Sustained Attention

Coelli, Stefania ;   Sclocco, Roberta ;   Barbieri, Riccardo ;   Reni, Gianluigi ;   Zucca, Claudio ;   Bianchi, Anna Maria

Tags Signal processing in physiological systemsNonstationary processing of biomedical signals

This paper investigates the relation between mental engagement level and sustained attention in 9 healthy adults performing a Conners’...

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EEMD-Based Signal Processing for Arterial Tonometry Blood Pressure

Huang, Yen-Ming ;   Hsieh, Hsiang-Hua ;   Hsieh, Yi-Yen

Tags Empirical mode decomposition in biosignal analysisNonstationary processing of biomedical signals

In this study, we proposed an effective signal processing system based on Ensemble Empirical Mode Decomposition (EEMD) method to remove the...

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Effect of Age on Changes in Motor Units Functional Connectivity

Poosapadi Arjunan, Sridhar ;   Kant Kumar, Dinesh

Tags Nonstationary processing of biomedical signalsSignal processing in physiological systemsBiomedical signal classification

With age, there is a change in functional connectivity of motor units in muscle. This leads to reduced muscle strength. This study has...

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Empirical Mode Decomposition Applied for Non-Invasive Electrohysterograhic Signals Denoising

Taralunga, Dragos-Daniel ;   Ungureanu, G. Mihaela ;   Hurezeanu, Bogdan ;   Gussi, Ilinca ;   Strungaru, Rodica

Tags Empirical mode decomposition in biosignal analysisNonstationary processing of biomedical signals

The electrical activity of the uterus, i.e. the electrohysterogram (EHG), is one of the most prominent tool for preterm labour. There is no...

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Empirical Mode Decomposition for Slow Wave Extraction from Electrogastrographical Signals

Mika, Barbara ;   Komorowski, Dariusz, Waldemar ;   Tkacz, Ewaryst

Tags Empirical mode decomposition in biosignal analysisNonstationary processing of biomedical signalsSignal processing in physiological systems

The aim of this study was to investigate the effectiveness of Empirical Mode Decomposition (EMD) for slow wave extraction from multichannel...

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Estimation of Heart Rate from Photoplethysmography during Physical Exercises using Wiener Filtering and Phase Vocoder

Temko, Andriy

Tags Signal processing in physiological systemsNonstationary processing of biomedical signals

A system for estimation of the heart rate (HR) from the photoplethysmographic (PPG) signal during intensive physical exercises is presented....

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Evaluation of Adaptive Parafac Alogorithms for Tracking of Simulated Moving Brain Sources

Fotouhi, Ardeshir ;   Eqlimi, Ehsan ;   Makki Abadi, Bahador

Tags Blind source separationNonstationary processing of biomedical signalsIndependent component analysis

In this paper, we proposed an online 2D localization method for tracking of dynamic moving brain sources. For this purpose, we used an...

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Evaluation of Sparse Representation based Classification Method for Online Brain-Computer Interface Systems

Shin, Younghak ;   Lee, Seungchan ;   Lee, Heung-No

Tags Biomedical signal classificationNonstationary processing of biomedical signals

Due to the inherent non-stationarity of electroencephalogram (EEG) signals, online brain-computer interface (BCI) classification is difficult...

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Heart Rate Calculation from Ensemble Brain Wave using Wavelet and Teager-Kaiser Energy Operator

Jayaraman, Srinivasan ;   V, Adithya

Tags Signal processing in physiological systemsNonstationary processing of biomedical signalsNonlinear synchronization of biomedical signals

Electroencephalogram (EEG) signal artifacts are caused by various factors, such as, Electro-oculogram (EOG), Electromyogram (EMG),...

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Highly Scalable Parallel Processing of Extracellular Recordings of Multielectrode Arrays

Gehring, Tiago Victor ;   Vasilaki, Eleni ;   Giugliano, Michele

Tags Nonstationary processing of biomedical signalsBiomedical signal classification

Technological advances of Multielectrode Arrays (MEAs) used for multi- site, parallel electrophysiological recordings, lead to an ever increasing...

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Intersession Adaptation of the EEG-Based Detector of Self-Paced Walking Intention in Stroke Patients

Sburlea, Andreea Ioana ;   Montesano, Luis ;   Minguez, Javier

Tags Biomedical signal classificationNonstationary processing of biomedical signalsClosed loop systems in physiological systems

Brain-computer interfaces (BCIs) have been used in patients with motor impairments as a rehabilitation tool, allowing the control of prosthetic...

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l0-regularized Time-varying Sparse Inverse Covariance Estimation for Tracking Dynamic FMRI Brain Networks

Fu, Zening ;   Han, Sheng ;   Tan, Ao ;   Tu, Yiheng ;   Zhang, Zhiguo

Tags Nonstationary processing of biomedical signalsConnectivity measurementsPartial and total coherence

Exploration of time-varying functional brain connectivity based on functional Magnetic Resonance Imaging (fMRI) data is important for...

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Metrics for the Background EEG Assessment in Asphyxiated Infants

Matic, Vladimir ;   Cherian, Perumpillichira Joseph ;   Ansari, Amir Hossein ;   Koolen, Ninah ;   Govaert, Paul ;   Naulaers, Gunnar ;   Van Huffel, Sabine ;   De Vos, Maarten

Tags Nonstationary processing of biomedical signalsData mining in biosignalsTime-frequency analysis of biosignals

This work proposes novel EEG-based metrics to be used for the assessment of background EEG abnormalities encountered in neonates with...

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MICROST: A Mixed Approach for Heart Rate Monitoring during Intensive Physical Exercise using Wrist-Type PPG Signals

Zhu, Shilin ;   Tan, Ke ;   Zhang, Xinyu ;   Liu, Zhiqiang ;   Liu, Bin

Tags Data mining in biosignalsNonstationary processing of biomedical signalsSignal processing in physiological systems

The performance of heart rate (HR) monitoring using wrist-type photoplethysmographic (PPG) signals is strongly influenced by motion...

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Multi-Sources Data Analysis with Sympatho-Vagal Balance Estimation Toward Early Bruxism Episodes Detection

Kostka, Pawel Stanislaw ;   Tkacz, Ewaryst

Tags Signal processing in physiological systemsNonstationary processing of biomedical signals

Sleep bruxism events detection system is presented, based on integrated, synchronized on-line analysis of EMG signal, heart rave variability...

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Multiscale AM-FM Methods on EEG Signals for Motor Task Classification

Flores Vega, Christian Humberto ;   Murray, Victor

Tags Time-frequency analysis of biosignalsSignals and systemsNonstationary processing of biomedical signals

In this manuscript, we present the use of customized, multiscale amplitude-modulation frequency-modulation (AMFM) methods on...

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Newborn Acute Pain Monitoring using Heart Rate Variability Analysis

De Jonckheere, Julien ;   Logier, Regis

Tags Nonstationary processing of biomedical signalsTime-scale and wavelets

Pain assessment is essential for newborn intensive care unit medical teams in order to reduce untreated procedural neonatal pain. We have...

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Non-Contact Dual Pulse Doppler System based Respiratory and Heart Rates Estimation for CHF Patients

Tran, Vinh Phuc ;   Al-Jumaily, Adel

Tags Nonstationary processing of biomedical signalsTime-frequency analysis of biosignalsTime-scale and wavelets

Long term continuous patient monitoring is required in many health systems for monitoring and analytical diagnosing purposes. Most of...

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Non-Parametric Frequency Response Function Tissue Modeling in Bipolar Electrosurgery

Barbé, Kurt ;   Ford, Carolyn ;   Bonn, Kenlyn ;   Gilbert, James

Tags Signal processing in physiological systemsSignals and systemsNonstationary processing of biomedical signals

High-frequency radio energy is applied to tissue therapeutically in a number of different medical applications. The ability to model the effects...

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Online EEG Artifact Rejection based on Automatic Dimensionality Reduction

Freitas, Lorena ;   Blankertz, Benjamin ;   Höhne, Johannes

Tags Nonstationary processing of biomedical signalsSignal processing in physiological systemsBiomedical signal classification

A method for real-time rejection of EEG artifacts is introduced. Results from artificially contaminated data show that the approach also...

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Real-Time EEG Source-Mapping Toolbox (REST): Online ICA and Source Localization

Pion-Tonachini, Luca ;   Hsu, Sheng-Hsiou ;   Makeig, Scott ;   Jung, Tzyy-Ping ;   Cauwenberghs, Gert

Tags Independent component analysisNonstationary processing of biomedical signalsSignal processing in physiological systems

The Electroencephalogram (EEG) is a noninvasive functional brain activity recording method that shows promise for becoming a 3-D cortical...

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Robust Heart Rate Estimation using Wrist-Based PPG Signals in the Presence of Intense Physical Activities

Zong, Chengzhi ;   Jafari, Roozbeh

Tags Signal processing in physiological systemsTime-frequency analysis of biosignalsNonstationary processing of biomedical signals

Heart rate tracking from a wrist-type photoplethysmogram (PPG) signal during intensive physical activities is a challenge that is attracting...

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Robust Monitoring of Hypovolemia in Intensive Care Patients using Photoplethysmogram Signals

Roederer, Alexander ;   Weimer, James ;   DiMartino, Joseph ;   Gutsche, Jacob ;   Lee, Insup

Tags Signal processing in physiological systemsNonstationary processing of biomedical signalsData mining in biosignals

The paper presents a fingertip photoplethysmography based technique to assess patient fluid status that is robust to waveform artifacts...

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Sensors' Ground Reaction Force Behavior for Both Normal and Parkinson Subjects – A Qualitative Study

Alkhatib, Rami ;   Corbier, Christophe ;   El Badaoui, Mohamed ;   Moslem, Bassam ;   Diab, Mohamad

Tags Nonstationary processing of biomedical signals

Characterization of normal and abnormal Gait has been a major research field for decades, whether in fall prevention, sports biomechanics or...

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Spectral Decomposition of Pupillary Unrest using Wavelet Entropy

Schumann, Andy ;   Kralisch, Caroline ;   Bär, Karl-Jürgen

Tags Time-scale and waveletsNonstationary processing of biomedical signalsNonlinear analysis of biomedical signals

Respiratory and cardiovascular rhythms were discovered in the temporal fluctuations of pupil sizes. The mechanism is physiologically explainable...

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Toward Lightweight Biometric Signal Processing for Wearable Devices

Francescon, Roberto ;   Hooshmand, Mohsen ;   Gadaleta, Matteo ;   Grisan, Enrico ;   Yoon, Seung Keun ;   Rossi, Michele

Tags Nonstationary processing of biomedical signalsBiomedical signal classificationSignals and systems

Wearable devices are becoming a natural and economic means to gather biometric data from end users. The massive amount of information that...

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Tracking Non-Stationary EEG Sources using Adaptive Online Recursive Independent Component Analysis

Hsu, Sheng-Hsiou ;   Pion-Tonachini, Luca ;   Jung, Tzyy-Ping ;   Cauwenberghs, Gert

Tags Independent component analysisNonstationary processing of biomedical signalsAdaptive filtering

Electroencephalographic (EEG) source-level analyses such as independent component analysis (ICA) have uncovered features related to human...

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Unobtrusive Heart Rate Estimation during Physical Exercise using Photoplethysmographic and Acceleration Data

Mullan, Patrick Johannes ;   Kanzler, Christoph Matthias ;   Lorch, Benedikt ;   Schröder, Lea ;   Winkler, Ludwig ;   Laich, Larissa Heike ;   Riedel, Frederik ;   Richer, Robert ;   Luckner, Christoph ;   Leutheuser, Heike ;   Eskofier, Bjoern M ;   Pasluosta, Cristian Federico

Tags Signal processing in physiological systemsTime-frequency analysis of biosignalsNonstationary processing of biomedical signals

Photoplethysmography (PPG) is a non-invasive, inexpensive and unobtrusive method to achieve heart rate monitoring during physical exercises....

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