Recommended ECG image specification for digitisation

[Kappers]

Thanks for the well documented package, it was quite straightforward to run src.run.digitize out-of-sample. That being said, the results are poor, and might indicate a generalisation issue (understandable if ECGs differ from PTB-XL).

To assist in understanding what the model expects, please can you provide simple image specifications (e.g. image size/resolution/colour format) and possible dimensions reflecting the ECG lead sheet and header. That would be a useful first step in ensuring any new input data somewhat conforms to model expectations.

[Kappers]

Thanks @felixkrones for elaborating on the resolution of the ECG sheet itself. I thought it'd also be useful to specify the image resolution, e.g. 256x256 etc - the optimal image resolution is different to the actual ECG grid resolution. I hope that makes sense?

[WangMengxiao319]

HI @Kappers , I also find the same issue, if we use other external ECG images, even the same layout, the result can be poor.

Have you find any other strategies or open-algorithm to improve this generalization?

Thanks!