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config.py
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config.py
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import yaml
from torchvision import transforms
from src import data
from src import neuralblox
method_dict = {
'neuralblox': neuralblox
}
# General config
def load_config(path, default_path=None):
''' Loads config file.
Args:
path (str): path to config file
default_path (bool): whether to use default path
'''
# Load configuration from file itself
with open(path, 'r') as f:
cfg_special = yaml.load(f)
# Check if we should inherit from a config
inherit_from = cfg_special.get('inherit_from')
# If yes, load this config first as default
# If no, use the default_path
if inherit_from is not None:
cfg = load_config(inherit_from, default_path)
elif default_path is not None:
with open(default_path, 'r') as f:
cfg = yaml.load(f)
else:
cfg = dict()
# Include main configuration
update_recursive(cfg, cfg_special)
return cfg
def update_recursive(dict1, dict2):
''' Update two config dictionaries recursively.
Args:
dict1 (dict): first dictionary to be updated
dict2 (dict): second dictionary which entries should be used
'''
for k, v in dict2.items():
if k not in dict1:
dict1[k] = dict()
if isinstance(v, dict):
update_recursive(dict1[k], v)
else:
dict1[k] = v
# Models
def get_model(cfg, device=None, dataset=None):
''' Returns the model instance.
Args:
cfg (dict): config dictionary
device (device): pytorch device
dataset (dataset): dataset
'''
method = cfg['method']
model = method_dict[method].config.get_model(
cfg, device=device, dataset=dataset)
return model
# Trainer
def get_trainer(model, optimizer, cfg, device):
''' Returns a trainer instance.
Args:
model (nn.Module): the model which is used
optimizer (optimizer): pytorch optimizer
cfg (dict): config dictionary
device (device): pytorch device
'''
method = cfg['method']
trainer = method_dict[method].config.get_trainer(
model, optimizer, cfg, device)
return trainer
def get_trainer_sequence(model, model_merge, optimizer, cfg, device):
''' Returns a trainer instance.
Args:
model (nn.Module): the model which is used
optimizer (optimizer): pytorch optimizer
cfg (dict): config dictionary
device (device): pytorch device
'''
method = cfg['method']
trainer = method_dict[method].config.get_trainer_sequence(
model, model_merge, optimizer, cfg, device)
return trainer
# Generator for final mesh extraction
def get_generator(model, cfg, device):
''' Returns a generator instance.
Args:
model (nn.Module): the model which is used
cfg (dict): config dictionary
device (device): pytorch device
'''
method = cfg['method']
generator = method_dict[method].config.get_generator(model, cfg, device)
return generator
def get_generator_fusion(model, model_merge, sample_points, cfg, device):
''' Returns a generator instance.
Args:
model (nn.Module): the backbone encoder and decoder which are used
model_merge : the fusion network
sample_points : points sampled to define scene ranges
cfg (dict): config dictionary
device (device): pytorch device
'''
method = cfg['method']
generator = method_dict[method].config.get_generator_fusion(model, model_merge, sample_points, cfg, device)
return generator
# Datasets
def get_dataset(mode, cfg, return_idx=False):
''' Returns the dataset.
Args:
model (nn.Module): the model which is used
cfg (dict): config dictionary
return_idx (bool): whether to include an ID field
'''
method = cfg['method']
dataset_type = cfg['data']['dataset']
dataset_folder = cfg['data']['path']
categories = cfg['data']['classes']
# Get split
splits = {
'train': cfg['data']['train_split'],
'val': cfg['data']['val_split'],
'test': cfg['data']['test_split'],
}
split = splits[mode]
# Create dataset
if dataset_type == 'Shapes3D':
# Dataset fields
# Method specific fields (usually correspond to output)
fields = method_dict[method].config.get_data_fields(mode, cfg)
# Input fields
inputs_field = get_inputs_field(mode, cfg)
if inputs_field is not None:
fields['inputs'] = inputs_field
if return_idx:
fields['idx'] = data.IndexField()
dataset = data.Shapes3dDataset(
dataset_folder, fields,
split=split,
categories=categories,
cfg = cfg
)
elif dataset_type == 'Scenes3D':
# Dataset fields
# Method specific fields (usually correspond to output)
# fields = method_dict[method].config.get_data_fields(mode, cfg)
fields = {}
# Input fields
inputs_field = get_inputs_field(mode, cfg)
if inputs_field is not None:
fields['inputs'] = inputs_field
if return_idx:
fields['idx'] = data.IndexField()
dataset = data.Shapes3dDataset(
dataset_folder, fields,
split=split,
categories=categories,
cfg=cfg
)
else:
raise ValueError('Invalid dataset "%s"' % cfg['data']['dataset'])
return dataset
def get_inputs_field(mode, cfg):
''' Returns the inputs fields.
Args:
mode (str): the mode which is used
cfg (dict): config dictionary
'''
input_type = cfg['data']['input_type']
if input_type is None:
inputs_field = None
elif input_type == 'pointcloud' or input_type == 'pointcloud_merge' or input_type == 'pointcloud_sequential':
transform = transforms.Compose([
data.SubsamplePointcloud(cfg['data']['pointcloud_n']),
data.PointcloudNoise(cfg['data']['pointcloud_noise'])
])
inputs_field = data.PointCloudField(
cfg['data']['pointcloud_file'], transform,
multi_files= cfg['data']['multi_files']
)
elif input_type == 'partial_pointcloud':
transform = transforms.Compose([
data.SubsamplePointcloud(cfg['data']['pointcloud_n']),
data.PointcloudNoise(cfg['data']['pointcloud_noise'])
])
inputs_field = data.PartialPointCloudField(
cfg['data']['pointcloud_file'], transform,
multi_files= cfg['data']['multi_files']
)
elif input_type == 'pointcloud_crop':
transform = transforms.Compose([
data.SubsamplePointcloud(cfg['data']['pointcloud_n']),
data.PointcloudNoise(cfg['data']['pointcloud_noise'])
])
inputs_field = data.PatchPointCloudField(
cfg['data']['pointcloud_file'],
transform,
multi_files= cfg['data']['multi_files'],
)
elif input_type == 'voxels':
inputs_field = data.VoxelsField(
cfg['data']['voxels_file']
)
elif input_type == 'idx':
inputs_field = data.IndexField()
else:
raise ValueError(
'Invalid input type (%s)' % input_type)
return inputs_field