Temporal Variation Measure Analysis: An Improved Second-Order Difference Plot
Abstract
In this study, an improved second-order difference plot is proposed to analyze the variability of heart rate variability. Although the variation of physiological status of cardiovascular system can be shown graphically by the second-order difference plot, the descriptive ability of existing indicators for this plot is insufficient. As a result, the physiological information contained in the second-order difference plot cannot be extracted adequately. Addressing the problem, the temporal variation measure analysis is presented to describe distribution patterns of scatter points in the second-order difference plot quantitatively and extract the acceleration information for variation of heart rate variability. Experiment results demonstrate the effectiveness of the temporal variation measure analysis. As a quantitative indicator, the temporal variation entropy is properly designed and successfully applied in the recognition and classification of the physiological statuses of the heart.
Cite
@article{arxiv.2212.08369,
title = {Temporal Variation Measure Analysis: An Improved Second-Order Difference Plot},
author = {Chen Diao and Ning Cai},
journal= {arXiv preprint arXiv:2212.08369},
year = {2022}
}