def main(args):
# reset default graph
tf.reset_default_graph()
base_path_trainer = os.path.join(
os.path.dirname(os.path.abspath(__file__)), 'trainers',
f'{args.trainer}.py')
base_path_network = os.path.join(
os.path.dirname(os.path.abspath(__file__)), 'models',
f'{args.model}.py')
trainer = getattr(
SourceFileLoader(args.trainer, base_path_trainer).load_module(),
args.trainer)
network = getattr(
SourceFileLoader(args.model, base_path_network).load_module(),
args.model)
with open(os.path.join(base_path, args.config), 'r') as f:
json_config = json.load(f)
dataset = Dataset.BRAINWEB
options = get_options(batchsize=args.batchsize,
learningrate=args.lr,
numEpochs=args.numEpochs,
zDim=args.zDim,
outputWidth=args.outputWidth,
outputHeight=args.outputHeight,
slices_start=args.slices_start,
slices_end=args.slices_end,
numMonteCarloSamples=args.numMonteCarloSamples,
config=json_config)
options['data']['dir'] = options["globals"][dataset.value]
dataset_hc, dataset_pc = get_datasets(options, dataset=dataset)
config = get_config(trainer=trainer,
options=options,
optimizer=args.optimizer,
intermediateResolutions=args.intermediateResolutions,
dropout_rate=0.2,
dataset=dataset_hc)
# handle additional Config parameters e.g. for GMVAE
for arg in vars(args):
if hasattr(config, arg):
setattr(config, arg, getattr(args, arg))
# Create an instance of the model and train it
model = trainer(tf.Session(), config, network=network)
# Train it
model.train(dataset_hc)
########################
# Evaluate best dice #
#########################
if not args.threshold:
# if no threshold is given but a dataset => Best dice evaluation on specific dataset
if args.ds:
# evaluate specific dataset
evaluate_optimal(model, options, args.ds)
return
else:
# evaluate all datasets for best dice without hyper intensity prior
options['applyHyperIntensityPrior'] = False
evaluate_optimal(model, options, Dataset.Brainweb)
evaluate_optimal(model, options, Dataset.MSLUB)
evaluate_optimal(model, options, Dataset.MSISBI2015)
# evaluate all datasets for best dice without hyper intensity prior
options['applyHyperIntensityPrior'] = True
evaluate_optimal(model, options, Dataset.Brainweb)
evaluate_optimal(model, options, Dataset.MSLUB)
evaluate_optimal(model, options, Dataset.MSISBI2015)
###############################################
# Evaluate generalization to other datasets #
###############################################
if args.threshold and args.ds: # only threshold is invalid
evaluate_with_threshold(model, options, args.threshold, args.ds)
else:
options['applyHyperIntensityPrior'] = False
datasetBrainweb = get_evaluation_dataset(options, Dataset.Brainweb)
_bestDiceVAL, _threshVAL = determine_threshold_on_labeled_patients(
[datasetBrainweb], model, options, description='VAL')
print(
f"Optimal threshold on MS Lesion Validation Set without optimal postprocessing: {_threshVAL} (Dice-Score {_bestDiceVAL})"
)
# Re-evaluate with the previously determined threshold
evaluate_with_threshold(model, options, _threshVAL, Dataset.Brainweb)
evaluate_with_threshold(model, options, _threshVAL, Dataset.MSLUB)
evaluate_with_threshold(model, options, _threshVAL, Dataset.MSISBI2015)
from models.constrained_adversarial_autoencoder_Chen import constrained_adversarial_autoencoder_Chen
from trainers.ConstrainedAAE import ConstrainedAAE
from utils import Evaluation
from utils.default_config_setup import get_config, get_options, get_datasets, Dataset
tf.reset_default_graph()
dataset = Dataset.BRAINWEB
options = get_options(batchsize=8,
learningrate=0.001,
numEpochs=1,
zDim=128,
outputWidth=128,
outputHeight=128)
options['data']['dir'] = options["globals"][dataset.value]
datasetHC, datasetPC = get_datasets(options, dataset=dataset)
config = get_config(trainer=ConstrainedAAE,
options=options,
optimizer='ADAM',
intermediateResolutions=[16, 16],
dropout_rate=0.1,
dataset=datasetHC)
config.kappa = 1.0
config.scale = 10.0
config.rho = 1.0
# Create an instance of the model and train it
model = ConstrainedAAE(tf.Session(),
config,
network=constrained_adversarial_autoencoder_Chen)
def get_evaluation_dataset(options, dataset=Dataset.BRAINWEB):
options['data']['dir'] = options["globals"][dataset.value]
return get_datasets(options, dataset=dataset)[1]
