Detecting patterns in waves

Question

I\'m trying to read a image from a electrocardiography and detect each one of the main waves in it (P wave, QRS complex and T wave). Now I can read the image and get a vector li

Answer 1

I'm no expert in this specific problem, but just off the top of my head from more general knowledge: Let's say you know the QRS complex (or one of the other features, but I'll use the QRS complex for this example) takes place in roughly some fixed time period of length L. I wonder if you could treat this as a classification problem as follows:

1. Split your signal into overlapping windows of length L. Each window either does or doesn't have the full QRS complex in it.
2. Fourier transform each window. Your features are the signal strength at each frequency.
3. Train a decision tree, support vector machine, etc. on some hand-annotated data.