Patient-Specific Deep Architectural Model for ECG Classification

Figure 2

ECG preprocessing, sample heartbeat waveform from number 201 record lead II, including normal (N), premature ventricular contraction (PVC), and atrial premature contraction (APC) AAMI heartbeat classes. (a) Baseline drift elimination; (b) QRS-complex detection; (c) MFSWT spectrogram corresponding to the waveform in (b); (d)~(i) MFSWT spectrograms corresponding to each segmented heartbeat by 700 ms windows in (b). In the absence of other special instructions, all spectrograms were normalized to [0, 1].

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