Article | 11-January-2021
gradient belongs to the objective quantity (objective physical stimulus), while that perceived by the HVS belongs to the subjective quantity (subjective response). Thus, how can one map the objective quantity to the subjective quantity? This mapping function is nonlinear, and it is difficult to accurately describe its form. Empirically, the ability of the human perception system to sense changes has a certain upper threshold. When the objective change exceeds the upper threshold, the subjective change
International Journal of Advanced Network, Monitoring and Controls, Volume 5 , ISSUE 4, 27–33
research-article | 30-November-2019
threshold is used to determine the region of interest, which contain R peaks for the ROI, then false peaks are removed to increase the accuracy, also there are two threshold in the work, which are lower and upper threshold, these threshold are updated according to the number of peaks (Barhattei et al., 2018).
In this paper, we have proposed a new system depending on wavelet transform and variable threshold for ECG peak detection, the wavelet transform is used for signal enhancement and to
Aqeel M. Hamad Alhussainy
International Journal on Smart Sensing and Intelligent Systems, Volume 13 , ISSUE 1, 1–11