Comments (2)
Hi @Mrvolcan,
I have the same error and could not overcome it. If you could overcome, please share it. Because I could not have reconstructed Bart recon,too with NaN metric value.
Best,
from complex-networks-release.
I ran into the same problem as above:
I carefully check the Data, network architecture and training parameters as follows:
Train data:
The knee dataset: http://old.mridata.org/fullysampled/knees
20 subjects, spliting into train, validation, and test subset. The training data consists of 4800 images.
Network architecture
I used the default codes to construct network architecture:
im_out_place = mri_model.unroll_fista(
ks_place,
sense_place,
is_training=True,
verbose=True,
do_hardproj=FLAGS.do_hard_proj,
num_summary_image=FLAGS.num_summary_image,
resblock_num_features=FLAGS.feat_map,
num_grad_steps=FLAGS.num_grad_steps,
conv=FLAGS.conv,
do_conjugate=FLAGS.do_conjugate,
activation=FLAGS.activation
)
Training parameters:
I used the same training parameters as in the article:
batch_size = 2
adam_beta1 = 0.9,
adam_beta1 = 0.999.
learning rate = 0.001
Error results:
As the number of training steps increases, the reconstructed image suddenly becomes abnormal and the error is very large as follows:
from complex-networks-release.
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