DSC low

[shy922]

I am training voxelmorph with IXI dataset when 200 epochs. DSC only 0.41. Why?

[yuelinxin]

Hi @1135451439 , Are you training with or without the optimizer? If your DSC is only 0.4 when 200 epochs, there could be a couple of reasons for this:

1. Dataset problem: you could be using the dataset incorrectly, or the dataset itself might not be what you expected it to be;
2. Hyper-parameter problem: check if your HP setting aligns with VoxelMorph's ideal setting (which should be the ones we provided given that you haven't changed ours);
3. Or something else;

In any case, please let us know the problem and we will try to help you solve it.

Here's our training validation DSC for your reference (with VoxelMorph on IXI):

[shy922]

I have not changed your code, I downloaded the officially processed ixi data set, I do not know why only 0.4.

[yuelinxin]

If you downloaded the dataset from the official IXI website, that dataset is NOT properly preprocessed yet, and that's most likely the source of your problem, there are 2 solutions to this:

1. You can preprocess the dataset yourself;
2. Or you can go to TransMorph's repository to download their already preprocessed dataset;

[shy922]

I downloaded the dataset from transmorph.

[yuelinxin]

Hi @1135451439 , I hope you have resolved your issue, if you still have problems please let us know :)

[shy922]

Hi @1135451439 , I hope you have resolved your issue, if you still have problems please let us know :)

Thank you evry much!The problem has been solved because of my pytorch environment. Do you know the LKU paper？Could you try the LKU paper also using this module you proposed？

[jsxzs]

Maybe you can try it yourself. It's easy and convenient to apply our method on such deep-learning-based models. It should have improvement as well.