Code for the paper:

Valvano, Gabriele, Andrea Leo, and Sotirios A. Tsaftaris. "Learning to Segment from Scribbles using Multi-scale Adversarial Attention Gates." IEEE Transactions on Medical Imaging (2021).

The official project page is here.
An online version of the paper can be found here.

@article{valvano2021learning,
  title={Learning to Segment from Scribbles using Multi-scale Adversarial Attention Gates},
  author={Valvano, Gabriele and Leo, Andrea and Tsaftaris, Sotirios A},
  journal={IEEE Transactions on Medical Imaging},
  year={2021},
  publisher={IEEE}
}

You can find the entire tensorflow model inside expriments/acdc/model.py. This file contains the main class that is used to train on the ACDC dataset. Please, refer to the class method define_model() to see how to correctly build the CNN architecture. The structure of the segmentor and the discriminator alone can be found under the folder architectures.

Once you download the ACDC dataset and the scribble annotations, you can pre-process it using the code in the file data_interface/utils_acdc/prepare_dataset.py. You can also train with custom datasets, but you must adhere to the template required by data_interface/interfaces/dataset_wrapper.py, which assumes the access to the dataset is through a tensorflow dataset iterator.

Once preprocessed the data, you can start the training running the command:

python -m train --RUN_ID="${run_id}"_${perc}_${split} --n_epochs=450 --CUDA_VISIBLE_DEVICE=${CUDA_VD} --data_path=${dpath} --experiment="${path}" --dataset_name=${dset_name} --verbose=True --results_dir=${res_dir} --n_sup_vols=${perc} --split_number=${split}

This will train the model and do a final test on the ACDC dataset. If you also want to test the results using the challenge server, after running the above command, you must run:

python -m test_on_acdc_test_set --RUN_ID="${run_id}"_${perc}_${split} --CUDA_VISIBLE_DEVICE=${CUDA_VD} --data_path=${dpath} --experiment="${path}" --dataset_name=${dset_name} --verbose=False --n_sup_vols=${perc} --split_number=${split}

and then submit the results as explained here.

Refer to the file run.sh for a complete example.

This code was implemented using TensorFlow 1.14. We tested it on a TITAN Xp GPU, and on a GeForce GTX 1080, using CUDA 8.0, 9.0 and 10.2.