2d slices from 3d image shuffle/randomize

[Djennifer]

I'm following the 2d_slices_from_3d_training.ipynb example and noticed that the slices are in order of the 3D image. In my case I want to minimize that my model will be stuck in a local minima and thus it would be helpful if I was able to shuffle the 2D slices from different images. So that in each batch very different looking 2D slices are present. I just cannot find the function to do something like this. monai.data.PatchIterd and monai.data.GridPatchDataset don't have a shuffle argument and I can't use the shuffle argument in the Dataloader since I use an IterableDataset

[wyli]

in the tutorial https://github.com/Project-MONAI/tutorials/blob/main/modules/2d_slices_from_3d_training.ipynb,

that's done with a ShuffleBuffer: shuffle_ds = monai.data.ShuffleBuffer(patch_ds, buffer_size=30, seed=0) when the buffer_size is larger than number of slice samples per volume, it'll shuffle across subjects.

[Djennifer]

Thank you! I completely missed that line, apparently