RandSimulateLowResolutiond with different default parameters than in nnUNet

[jmlipman]

This transformation is a "Random simulation of low resolution corresponding to nnU-Net’s SimulateLowResolutionTransform". However, in nnUNet (in batchgenerators actually), downsampling is done linearly and upsampling via nearest neighbor, whereas in MONAI is the opposite. I was wondering if there is a reason behind this discrepancy.

Thanks!

[KumoLiu]

Hi @jmlipman, thanks for your interest here.
It was just a default value.

MONAI/monai/transforms/spatial/array.py

Line 3470 in 96bfda0

downsample_mode: InterpolateMode | str = InterpolateMode.NEAREST,

You can update it when you initialize the transform.

Thanks.