How to visualize convolutional filter outputs

[al3ms]

I trained my model using the great framework MONAI, which really simplified the implementation.

I am wondering if MONAI supports visualizing the convolutional filter outputs easily, so I could understands what are the learned features.

Thanks

[KumoLiu]

Hi @al3ms, you can refer to these tutorials.
https://github.com/Project-MONAI/tutorials/tree/main/modules/interpretability
Thanks!

[wyli]

also it's possible to use this forward hook approach https://web.stanford.edu/~nanbhas/blog/forward-hooks-pytorch/#forward-hooks-101 to capture the activations.

and once the activation maps are stored, monai.visualize.matshow3d can display N-d tensors as a set of 2D frames