Ambulatory Estimation of Human Circadian Phase Using Models of Varying Complexity Based on Non-Invasive Signal Modalities

Gil, Enrique A. ;   Aubert, Xavier ;   Beersma, Domien G.M.

Tags Signal processing in physiological systemsParametric filtering and estimationTime-frequency analysis of biosignals

In this work, we introduce a number of models for human circadian phase estimation in ambulatory conditions using various sensor modalities....

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Automatic Heart Sound Segmentation and Murmur Detection in Pediatric Phonocardiograms

Pedrosa, João ;   Castro, Ana ;   Vinhoza, Tiago

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

The digital analysis of heart sounds has revealed itself as an evolving field of study. In recent years, numerous approaches to create...

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BioWatch - A Wrist Watch based Signal Acquisition System for Physiological Signals including Blood Pressure

Thomas, Simi Susan ;   Nathan, Viswam ;   Zong, Chengzhi ;   Akinbola, Ebunoluwa ;   Aroul, Antoine Lourdes Praveen ;   Philipose, Lijoy ;   Soundarapandian, Karthikeyan ;   Shi, Xiangrong ;   Jafari, Roozbeh

Tags Signal processing in physiological systems

A wrist watch based system, which can measure electrocardiogram (ECG) and photoplethysmogram (PPG), is presented in this work. By using...

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Cell Categories and K-Nearest Neighbor Algorithm Based Decoding of Primary Motor Cortical Activity During Reach-To-Grasp Task

Guo, Yangyang ;   Li, Wei ;   He, Jiping

Tags Signal processing in physiological systemsBiomedical simulation involving signal processing

Neural decoding is a procedure to acquire intended movement information from neural activity and generate movement commands to control...

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Computationally Efficient QRS Detection Analysis Based on Dual-Slope Method

Arefin, M. Riadh ;   Fazel-Rezai, Reza

Tags Signal processing in physiological systems

This paper presents a computationally efficient QRS detection algorithm for wearable electrocardiogram (ECG) applications based on dual-slope...

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Correlation between Muscular and Nerve Signals Responsible for Hand Grasping in Non-Human Primates

Sheshadri, Swathi ;   Kortelainen, Jukka ;   Nag, Sudip ;   Ann, Kian ;   Bazley, Faith A. ;   Michoud, Frederic ;   Patil, Anoop ;   Orellana, Josue ;   Libedinsky, Camilo ;   Lahari, Amitabha ;   Chan, Louiza ;   Chng, Keefe ;   Bossi, Silvia ;   Cutrone, Annarita ;   Thakor, Nitish ;   Delgado-Martínez, Ignacio ;   Yen, Shih-Cheng

Tags Signal processing in physiological systems

Neuroprosthetic devices that interface with the nervous system to restore functional motor activity offer a viable alternative to nerve...

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Development of a System for Automatic Detection of Air Embolism Using a Precordial Doppler

Tedim, Ana ;   Amorim, Pedro ;   Castro, Ana

Tags Time-frequency analysis of biosignalsTime-scale and waveletsSignal processing in physiological systems

Venous air embolism (VAE) is the air bubble accumulation in the right side of the heart. Changes in Doppler heart sound (DHS) are...

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ECG-Derived Respirations Based on Phase-Space Reconstruction of Single-Lead ECG: Validations Over Various Physical Activities Based on Parallel Recordings of ECG, Respiration, and Body Accelerations

Chan, Hsiao-Lung

Tags Signal processing in physiological systemsCoherence in biomedical signal processingSignals and systems

ECG derived respiration (EDR) provides a comfortable measurement of respiration and is recently applied to sleep studies. Nevertheless, the...

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Electrodermal Activity Processing: A Convex Optimization Approach

Greco, Alberto ;   Lanata', Antonio ;   Valenza, Gaetano ;   Scilingo, Enzo Pasquale ;   Citi, Luca

Tags Signal processing in physiological systemsSignals and systemsParametric filtering and estimation

This paper reports on a novel model based on convex optimization methods for the analysis of the skin conductance (SC) as response of the...

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Exploring the Spectral Information of Airflow Recordings to Help in Pediatric Obstructive Sleep Apnea-Hypopnea Syndrome Diagnosis

Gutierrez, Gonzalo Cesar ;   Álvarez, Daniel ;   Alonso, M. Luz ;   Terán, J ;   del Campo, Félix ;   Hornero, Roberto

Tags Signal processing in physiological systemsMultivariate signal processing

This work aims at studying the usefulness of the spectral information contained in airflow (AF) recordings in the context of Obstructive...

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Identification of Intestinal Pacemaker Frequency through Time-Frequency Ridge Analysis of Surface EEnG

Garcia-Casado, Javier ;   Ye Lin, Yiyao ;   Avalos-Gallardo, Edgar G. ;   Zena-Gimenez, Victor F ;   Prats-Boluda, Gema

Tags Signal processing in physiological systemsTime-frequency analysis of biosignals

The non-invasive monitoring of the frequency of intestinal pacemaker activity (slow wave, SW) has an important diagnostic value. However the...

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Online Tracking of the Lower Body Joint Angles Using IMUs for Gait Rehabilitation

Joukov, Vladimir ;   Michelle, Karg ;   Kulic, Dana

Tags Signal processing in physiological systemsKalman filtering

An important field in physiotherapy is the rehabilitation of gait. A continuous assessment and progress tracking of a patient's ability to walk...

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P and T Wave Detection on Multichannel ECG Using FRI

Nair, Amrish ;   Marziliano, Pina

Tags Signal processing in physiological systems

This paper proposes a new method for detecting P and T waves in multilead ECG based on the Finite Rate of Innovation(FRI) technique [8]. A...

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Physiological Responses to Error Amplification in a Robotic Reaching Adaptation Task

Shirzad, Navid ;   Van der Loos, H. F. Machiel

Tags Signal processing in physiological systemsClosed loop systems in physiological systemsNonlinear analysis of biomedical signals

Analysis of physiological responses provides an objective measure of a person's affective state and has been proposed as a way to evaluate...

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Similarities of Arterial Collagen Pressure-Diameter Relationship between Ovine Femoral Arteries and PLLA Vascular Grafts

Armentano, Ricardo Luis ;   Cymberknop, Leandro Javier ;   Suarez-Bagnasco, Diego ;   Montini Ballarin, Florencia ;   Balay, Guillermo ;   Negreira, Carlos ;   Abraham, Gustavo Abel

Tags Signal processing in physiological systems

Introduction: In-vivo implanted vascular grafts fail due to the mechanical mismatch between the native vessel and the implant. The...

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Ultrasound Signal Quality Parameterization for Image-Free Evaluation of Arterial Stiffness

Shah, Malay ;   Joseph, Jayaraj ;   Sivaprakasam, Mohanasankar

Tags Signal processing in physiological systemsSignals and systemsBiomedical signal classification

We are in process of developing an image-free, single element ultrasound system for automated evaluation of arterial stiffness, we call it...

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Upper Limb Functional Assessment of Children with Cerebral Palsy Using a Sorting Box

Quijano-Gonzalez, Yannick ;   Melendez-Calderon, Alejandro ;   Burdet, Etienne ;   Chong-Quero, Jesús Enrique ;   Villanueva-Ayala, Demetrio ;   Pérez-Moreno, Juan Carlos

Tags Signal processing in physiological systemsSignals and systems

We investigated the use of a sorting box to obtain a quantitative assessment of upper limb motor function of children with cerebral palsy. In...

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