학술논문
PPG pulse direction determination algorithm for PPG waveform inversion by wrist rotation
Document Type
Conference
Author
Source
2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) Engineering in Medicine and Biology Society (EMBC), 2017 39th Annual International Conference of the IEEE. :4090-4093 Jul, 2017
Subject
Language
ISSN
1557-170X
1558-4615
1558-4615
Abstract
This paper describes photoplethysmography (PPG)-based pulse direction determination algorithm on a site of the radial artery using a wrist band. It has been well known that PPG is susceptible to noise and motion artifacts in the mobile environment and many research efforts have been made to focus on rejection of the noise and motion artifacts. However, no research has been performed to find PPG pulses when PPG is inverted by wrist movement. We present an algorithm, which accurately yields which direction PPG pulses face regardless of wrist movement. The algorithm is one step closer to robust real-time PPG pulse direction determination for continuous PPG monitoring regardless of body movements.