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SCIENCE CHINA Information Sciences, Volume 61, Issue 2: 022312(2018) https://doi.org/10.1007/s11432-017-9168-2

A novel approach framework based on statistics for reconstruction and heartrate estimation from PPG with heavy motion artifacts

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  • ReceivedMay 2, 2017
  • AcceptedJun 27, 2017
  • PublishedNov 13, 2017

Abstract

One of the most important applications of photoplethysmography (PPG) signal is heartrate (HR) estimation. For its applications in wearable devices, motion artifact (MA) may be the most serious challenge for randomness both in format and temporal distribution. This paper proposes an advanced time-frequency analysis framework based on empirical mode decomposition (EMD) to select specific time slices for signal reconstruction. This framework operates with a type of pre-processing called variance characterization series (VCS), EMD, singular value decomposition (SVD), and a precise and adaptive 2-D filtration reported first. This filtration is based on Harr wavelet transform (HWT) and 3rd order cumulant analysis, to make it have resolution in both the time domain and different components. The simulation results show that the proposed method gains 1.07 in absolute average error (AAE) and 1.87 in standard deviation (SD); AAEs 1st and 3rd quartiles are 0.12 and 1.41, respectively. This framework is tested by the PhysioBank MIMIC II waveform database.


Acknowledgment

This work was supported by National Natural Science Foundation of China (Grant Nos. 61634006, 61372060, 61335010, 61474107, 81300803), National Key Technologies R&D Program (Grant Nos. 2016YFB0401303, 2016YFB0402405), Basic Research Project of Shanghai Science and Technology Commission (Grant No. 16JC1400101), and Key Research Program of Frontier Science, Chinese Academy of Sciences (Grant No. QYZDY-SSW-JSC004).


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