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2012 A Linear Transformation Approach for Estimating Pulse Arrival Time
Dohyun Kim, Jong-Hoon Ahn, Jongshill Lee, Hoon Ki Park, In Young Kim
J. Appl. Math. 2012(SI04): 1-12 (2012). DOI: 10.1155/2012/643653

Abstract

We propose a new mathematical framework for estimating pulse arrival time (PAT). Existing methods of estimating PAT rely on local characteristic points or global parametric models: local characteristic point methods detect points such as foot points, max points, or max slope points, while global parametric methods fit a parametric form to the anacrotic phase of pulse signals. Each approach has its strengths and weaknesses; we take advantage of the favorable properties of both approaches in our method. To be more precise, we transform continuous pulse signals into scalar timing codes through three consecutive transformations, the last of which is a linear transformation. By training the linear transformation method on a subset of data, the proposed method yields results that are robust to noise. We apply this method to real photoplethysmography (PPG) signals and analyze the agreement between our results and those obtained using a conventional approach.

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Dohyun Kim. Jong-Hoon Ahn. Jongshill Lee. Hoon Ki Park. In Young Kim. "A Linear Transformation Approach for Estimating Pulse Arrival Time." J. Appl. Math. 2012 (SI04) 1 - 12, 2012. https://doi.org/10.1155/2012/643653

Information

Published: 2012
First available in Project Euclid: 17 October 2012

zbMATH: 1244.94020
MathSciNet: MR2910915
Digital Object Identifier: 10.1155/2012/643653

Rights: Copyright © 2012 Hindawi

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