Fig. 6 | Scientific Data

Fig. 6

From: A PPG Signal Dataset Collected in Semi-Naturalistic Settings Using Galaxy Watch

Fig. 6

Overview of the PPG signal processing pipeline. The pipeline consists of four main stages: (1) preprocessing with window segmentation and bandpass filtering, (2) motion artifact reduction using four different denoising approaches (IMAT, Kalman, Wiener, and SVD), (3) peak detection using the HeartPy framework, and (4) HR/HRV measurement calculation. Each stage is designed to improve signal quality progressively and extract meaningful cardiovascular parameters.

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