Figure 10
From: Design and evaluation of a knowledge-based ECG noise filtering framework
Bland–Altman analysis with \(95\%\) confidence interval for the Comparison of ground truth vs noise-agnostic (\(QRS_G\) vs \(QRS_{NA}\)), noise-presence (\(QRS_G\) vs \(QRS_{NP}\)) and noise-profile (\(QRS_G\) vs \(NPF_{QRS}\)) filtering for QRS interval (a)–(c), and (d)–(f) for QT interval (\(QT_G\) vs \(QT_{NU}\), \(QT_G\) vs \(QT_{NA}\), \(QT_G\) vs \(QT_{NPF}\)). The mean-difference of noise-presence and noise-profile filterings are \(-16.37\) ms and 2.50 ms, whereas noise-agnostic shows \(-38.23\) ms compared to the ground truth of QRS interval. For the QT interval mean-difference of noise-presence and noise-profile filtering is \(-2.43\) ms and 4.28 ms, while the noise-agnostic filtering mean-difference value is \(-10.33\) ms.
