Figure 1
From: A fully-automated paper ECG digitisation algorithm using deep learning

Overview of the automated ECG digitisation algorithm: Step I: The 12-lead ECG image is pre-processed to remove redacted portions of the ECG and the ECG grid. The ECG baselines are then determined to obtain the ECG configuration, aided by vertical anchor points. Step II: After determining horizontal and vertical anchor points and lead configuration, the 12-lead signals are cropped. Step III: ECG signal extraction from the single lead ECG images. Step IV: User interface design using dashboard tool.