Semantic segmentation
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import os
import torch
from matplotlib import pyplot as plt
from rastervision.core.data import ClassConfig, SemanticSegmentationLabels
import albumentations as A
from rastervision.pytorch_learner import (
SemanticSegmentationRandomWindowGeoDataset,
SemanticSegmentationSlidingWindowGeoDataset,
SemanticSegmentationVisualizer,
SemanticSegmentationGeoDataConfig,
SemanticSegmentationLearnerConfig,
SolverConfig,
SemanticSegmentationLearner)
import os
import torch
from matplotlib import pyplot as plt
from rastervision.core.data import ClassConfig, SemanticSegmentationLabels
import albumentations as A
from rastervision.pytorch_learner import (
SemanticSegmentationRandomWindowGeoDataset,
SemanticSegmentationSlidingWindowGeoDataset,
SemanticSegmentationVisualizer,
SemanticSegmentationGeoDataConfig,
SemanticSegmentationLearnerConfig,
SolverConfig,
SemanticSegmentationLearner)
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os.environ['AWS_NO_SIGN_REQUEST'] = 'YES'
os.environ['AWS_NO_SIGN_REQUEST'] = 'YES'
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class_config = ClassConfig(
names=['background', 'building'],
colors=['lightgray', 'darkred'],
null_class='background')
viz = SemanticSegmentationVisualizer(
class_names=class_config.names, class_colors=class_config.colors)
class_config = ClassConfig(
names=['background', 'building'],
colors=['lightgray', 'darkred'],
null_class='background')
viz = SemanticSegmentationVisualizer(
class_names=class_config.names, class_colors=class_config.colors)
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train_image_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0331E-1257N_1327_3160_13/images/global_monthly_2018_01_mosaic_L15-0331E-1257N_1327_3160_13.tif'
train_label_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0331E-1257N_1327_3160_13/labels/global_monthly_2018_01_mosaic_L15-0331E-1257N_1327_3160_13_Buildings.geojson'
val_image_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/images/global_monthly_2018_01_mosaic_L15-0357E-1223N_1429_3296_13.tif'
val_label_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/labels/global_monthly_2018_01_mosaic_L15-0357E-1223N_1429_3296_13_Buildings.geojson'
train_image_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0331E-1257N_1327_3160_13/images/global_monthly_2018_01_mosaic_L15-0331E-1257N_1327_3160_13.tif'
train_label_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0331E-1257N_1327_3160_13/labels/global_monthly_2018_01_mosaic_L15-0331E-1257N_1327_3160_13_Buildings.geojson'
val_image_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/images/global_monthly_2018_01_mosaic_L15-0357E-1223N_1429_3296_13.tif'
val_label_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/labels/global_monthly_2018_01_mosaic_L15-0357E-1223N_1429_3296_13_Buildings.geojson'
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pred_image_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/images/global_monthly_2020_01_mosaic_L15-0357E-1223N_1429_3296_13.tif'
pred_label_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/labels/global_monthly_2020_01_mosaic_L15-0357E-1223N_1429_3296_13_Buildings.geojson'
pred_image_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/images/global_monthly_2020_01_mosaic_L15-0357E-1223N_1429_3296_13.tif'
pred_label_uri = 's3://spacenet-dataset/spacenet/SN7_buildings/train/L15-0357E-1223N_1429_3296_13/labels/global_monthly_2020_01_mosaic_L15-0357E-1223N_1429_3296_13_Buildings.geojson'
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data_augmentation_transform = A.Compose([
A.Flip(),
A.ShiftScaleRotate(),
A.OneOf([
A.HueSaturationValue(hue_shift_limit=10),
A.RGBShift(),
A.ToGray(),
A.ToSepia(),
A.RandomBrightness(),
A.RandomGamma(),
]),
A.CoarseDropout(max_height=32, max_width=32, max_holes=5)
])
data_augmentation_transform = A.Compose([
A.Flip(),
A.ShiftScaleRotate(),
A.OneOf([
A.HueSaturationValue(hue_shift_limit=10),
A.RGBShift(),
A.ToGray(),
A.ToSepia(),
A.RandomBrightness(),
A.RandomGamma(),
]),
A.CoarseDropout(max_height=32, max_width=32, max_holes=5)
])
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train_ds = SemanticSegmentationRandomWindowGeoDataset.from_uris(
class_config=class_config,
image_uri=train_image_uri,
label_vector_uri=train_label_uri,
label_vector_default_class_id=class_config.get_class_id('building'),
size_lims=(150, 200),
out_size=256,
max_windows=400,
transform=data_augmentation_transform)
len(train_ds)
train_ds = SemanticSegmentationRandomWindowGeoDataset.from_uris(
class_config=class_config,
image_uri=train_image_uri,
label_vector_uri=train_label_uri,
label_vector_default_class_id=class_config.get_class_id('building'),
size_lims=(150, 200),
out_size=256,
max_windows=400,
transform=data_augmentation_transform)
len(train_ds)
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x, y = viz.get_batch(train_ds, 4)
viz.plot_batch(x, y, show=True)
x, y = viz.get_batch(train_ds, 4)
viz.plot_batch(x, y, show=True)
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val_ds = SemanticSegmentationSlidingWindowGeoDataset.from_uris(
class_config=class_config,
image_uri=val_image_uri,
label_vector_uri=val_label_uri,
label_vector_default_class_id=class_config.get_class_id('building'),
size=200,
stride=100,
transform=A.Resize(256, 256))
len(val_ds)
val_ds = SemanticSegmentationSlidingWindowGeoDataset.from_uris(
class_config=class_config,
image_uri=val_image_uri,
label_vector_uri=val_label_uri,
label_vector_default_class_id=class_config.get_class_id('building'),
size=200,
stride=100,
transform=A.Resize(256, 256))
len(val_ds)
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x, y = viz.get_batch(val_ds, 4)
viz.plot_batch(x, y, show=True)
x, y = viz.get_batch(val_ds, 4)
viz.plot_batch(x, y, show=True)
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pred_ds = SemanticSegmentationSlidingWindowGeoDataset.from_uris(
class_config=class_config,
image_uri=pred_image_uri,
size=200,
stride=100,
transform=A.Resize(256, 256))
len(pred_ds)
pred_ds = SemanticSegmentationSlidingWindowGeoDataset.from_uris(
class_config=class_config,
image_uri=pred_image_uri,
size=200,
stride=100,
transform=A.Resize(256, 256))
len(pred_ds)
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model = torch.hub.load(
'AdeelH/pytorch-fpn:0.3',
'make_fpn_resnet',
name='resnet18',
fpn_type='panoptic',
num_classes=len(class_config),
fpn_channels=128,
in_channels=3,
out_size=(256, 256),
pretrained=True)
model = torch.hub.load(
'AdeelH/pytorch-fpn:0.3',
'make_fpn_resnet',
name='resnet18',
fpn_type='panoptic',
num_classes=len(class_config),
fpn_channels=128,
in_channels=3,
out_size=(256, 256),
pretrained=True)
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data_cfg = SemanticSegmentationGeoDataConfig(
class_names=class_config.names,
class_colors=class_config.colors,
num_workers=0, # increase to use multi-processing
)
data_cfg = SemanticSegmentationGeoDataConfig(
class_names=class_config.names,
class_colors=class_config.colors,
num_workers=0, # increase to use multi-processing
)
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solver_cfg = SolverConfig(
batch_sz=8,
lr=3e-2,
class_loss_weights=[1., 10.]
)
solver_cfg = SolverConfig(
batch_sz=8,
lr=3e-2,
class_loss_weights=[1., 10.]
)
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learner_cfg = SemanticSegmentationLearnerConfig(data=data_cfg, solver=solver_cfg)
learner_cfg = SemanticSegmentationLearnerConfig(data=data_cfg, solver=solver_cfg)
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learner = SemanticSegmentationLearner(
cfg=learner_cfg,
output_dir='./train-demo/',
model=model,
train_ds=train_ds,
valid_ds=val_ds,
)
learner = SemanticSegmentationLearner(
cfg=learner_cfg,
output_dir='./train-demo/',
model=model,
train_ds=train_ds,
valid_ds=val_ds,
)
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learner.log_data_stats()
learner.log_data_stats()
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%load_ext tensorboard
%load_ext tensorboard
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%tensorboard --bind_all --logdir "./train-demo/tb-logs" --reload_interval 10
%tensorboard --bind_all --logdir "./train-demo/tb-logs" --reload_interval 10
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learner.train(epochs=3)
learner.train(epochs=3)
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learner.train(epochs=1)
learner.train(epochs=1)
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learner.plot_predictions(split='valid', show=True)
learner.plot_predictions(split='valid', show=True)
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learner.save_model_bundle()
learner.save_model_bundle()
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learner = SemanticSegmentationLearner.from_model_bundle(
model_bundle_uri='./train-demo/model-bundle.zip',
output_dir='./train-demo/',
model=model,
)
learner = SemanticSegmentationLearner.from_model_bundle(
model_bundle_uri='./train-demo/model-bundle.zip',
output_dir='./train-demo/',
model=model,
)
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learner = SemanticSegmentationLearner.from_model_bundle(
model_bundle_uri='./train-demo/model-bundle.zip',
output_dir='./train-demo/',
model=model,
train_ds=train_ds,
valid_ds=val_ds,
training=True,
)
learner = SemanticSegmentationLearner.from_model_bundle(
model_bundle_uri='./train-demo/model-bundle.zip',
output_dir='./train-demo/',
model=model,
train_ds=train_ds,
valid_ds=val_ds,
training=True,
)
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learner.train(epochs=1)
learner.train(epochs=1)
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learner.plot_predictions(split='valid', show=True)
learner.plot_predictions(split='valid', show=True)
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predictions = learner.predict_dataset(
pred_ds,
raw_out=True,
numpy_out=True,
predict_kw=dict(out_shape=(325, 325)),
progress_bar=True)
predictions = learner.predict_dataset(
pred_ds,
raw_out=True,
numpy_out=True,
predict_kw=dict(out_shape=(325, 325)),
progress_bar=True)
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pred_labels = SemanticSegmentationLabels.from_predictions(
pred_ds.windows,
predictions,
smooth=True,
extent=pred_ds.scene.extent,
num_classes=len(class_config))
pred_labels = SemanticSegmentationLabels.from_predictions(
pred_ds.windows,
predictions,
smooth=True,
extent=pred_ds.scene.extent,
num_classes=len(class_config))
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scores = pred_labels.get_score_arr(pred_labels.extent)
scores = pred_labels.get_score_arr(pred_labels.extent)
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pred_labels.save(
uri=f'predict',
crs_transformer=pred_ds.scene.raster_source.crs_transformer,
class_config=class_config)
pred_labels.save(
uri=f'predict',
crs_transformer=pred_ds.scene.raster_source.crs_transformer,
class_config=class_config)
Last update:
2023-11-22
Created: 2023-11-22
Created: 2023-11-22