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Table 3 General properties of different HR tracking techniques

From: Heart rate tracking in photoplethysmography signals affected by motion artifacts: a review

Tracker type Pre-processing Solution space Training Exercise model Decorrelation Real time Subject specific
SDT Required 0.4–6 Hz No Required Spectral subtraction, noise modeling and smoothing Not Not
SST // // Parameter training Required Modeling of exercise Able to track in real time //
SPT // // No Not specifically Spectral resolution, filter band width, heuristics and smoothing Yes //
MLT Not required Not Yes Not required Not Yes Yes