Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals.

Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals. Abstract Text:

Levi B Wood,H Asada,

The photoplethysmogram (PPG) is an extremely useful wearable sensing medical diagnostic tool. However, the PPG signal becomes highly corrupted and unusable when the sensor wearer is in motion. This paper investigates how confidently Widrow's Adaptive Noise Cancellation can eliminate motion artifact and recover a motion corrupted PPG signal for a wearer engaged in jogging motions. It has previously been shown that Widrow's Adaptive Noise Cancellation can recover a motion corrupted PPG signal for certain data sets by using a collocated accelerometer to measure the corrupting motion. However, wearer motion is band limited, and provides little information for estimating motion-to-PPG noise transfer dynamics. This means that, without proper care, recovery results can be unreliable. In the present work, both Finite Impulse Response (FIR) and Laguerre series black box transfer dynamics models are evaluated for how confidently they can be identified. Model confidence is quantified in terms of variance of the transfer dynamics estimate at the motion frequencies. For typical jogging motion, it is found that standard deviation of the FIR model transfer dynamics is 30% of the mean value at the motion input frequency. The standard deviation of the Laguerre model transfer dynamics is only 1%. Time domain data shows how a Laguerre model outperforms a FIR model in accordance with the computed model variance.

Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals. Publishing Authors By Initials

LB Wood,H Asada,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Conference proceedings : ... Annual International

VOLUME: 1

Page Numbers: 652-5

Journal Abbreviation:

ISSN: 1557-170X

DAY: 16

MONTH: 11

YEAR: 2007

Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 101243413

Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals.

AFFILIATION: department of mechanical engineering at the Massachusetts Institute of Technology, Cambridge, MA 02139 USA. phone: 617-258-8013; e-mail: woodl@mit.edu.

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Conf Proc IEEE Eng Med Biol So

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals Related Publications

• A cellular control architecture for compliant artificial muscles.
• A finite element analysis of local oscillometric blood pressure measurements.
• A flash-photometric method for determination of reactivity of superoxide: application to superoxide dismutase assay.
• Adaptive blood pressure estimation from wearable PPG sensors using peripheral artery pulse wave velocity measurements and multi-channel blind identification of local arterial dynamics.
• Adaptive hydrostatic blood pressure calibration: Development of a wearable, autonomous pulse wave velocity blood pressure monitor.
• Amino acid sequence of copper,zinc-superoxide dismutase from spinach leaves.
• Cable-Free Body Area Network using Conductive Fabric Sheets for Advanced Human-Robot Interaction.
• Calibration of the photoplethysmogram to arterial blood pressure: capabilities and limitations for continuous pressure monitoring.
• Characterization of excess hard tissue occurring in the mesio-buccal surface of the mandibular first molar in microphthalmic mouse.
• Differential electroencephalographic response to tracheal intubation between young and elderly during isoflurane and sevoflurane nitrous oxide anaesthesia.
• Dimensionality reduction of cellular actuator arrays using the concept of synergy for driving a robotic hand.
• E7080, a novel inhibitor that targets multiple kinases, has potent antitumor activities against stem cell factor producing human small cell lung cancer H146, based on angiogenesis inhibition.
• Ecto-nucleoside triphosphate diphosphohydrolase inhibits ATP- and ADP-induced vasoconstriction.
• Expression of interleukin-18 in coronary plaque obtained by atherectomy from patients with stable and unstable angina.
• Hypereosinophilic syndrome associated with occlusive coronary thrombosis and right ventricular thrombus.
• Immunohistochemical and immunoblot analysis of Dopamine and cyclic AMP-regulated phosphoprotein, relative molecular mass 32,000 (DARPP-32) in the prefrontal cortex of subjects with schizophrenia and bipolar disorder.
• Inactivation of 2-oxoglutarate dehydrogenase in rat liver mitochondria by its substrate and t-butyl hydroperoxide.
• Incidence of dementia and associated risk factors in Japan: The Osaki-Tajiri Project.
• Is health inequality across individuals of moral concern?
• Low variance adaptive filter for cancelling motion artifact in wearable photoplethysmogram sensor signals.
• Medial and adventitial macrophages are associated with expansive atherosclerotic remodeling in rabbit femoral artery.
• Molecular orientation of plastocyanin on spinach thylakoid membranes as determined by acetylation of lysine residues.
• Noise Cancellation Model Validation for Reduced Motion Artifact Wearable PPG Sensors Using MEMS Accelerometers.
• Novel design for a wearable, rapidly deployable, wireless noninvasive triage sensor.
• Reconstruction of central aortic pressure waveform using adaptive multi-channel identification.
• Reliability and validity of Questionnaire for Neurobehavioral Disability following traumatic brain injury.
• The effect of dexmedetomidine on electrocorticography in patients with temporal lobe epilepsy under sevoflurane anesthesia.
• Tris-induced cross-linking of thylakoid peptides; thiol oxidation catalyzed by Tris-Cu2+ complexes as a possible mechanism.
• Wearable, Cuff-less PPG-Based Blood Pressure Monitor with Novel Height Sensor.
• [Anesthetic management for thymectomy in a patient with stiff-person syndrome]