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[Segmentation] Enable feature vector output for MPA Segmentation #1158

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Aug 9, 2022
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Original file line number Diff line number Diff line change
Expand Up @@ -12,9 +12,11 @@
# See the License for the specific language governing permissions
# and limitations under the License.

from typing import Any, Dict, Optional, Union, Iterable
import warnings

import cv2
import numpy as np
from typing import Any, Dict, Optional

from openvino.model_zoo.model_api.models import SegmentationModel
from openvino.model_zoo.model_api.models.types import NumericalValue
Expand All @@ -23,6 +25,16 @@
from ote_sdk.utils.segmentation_utils import create_hard_prediction_from_soft_prediction


@check_input_parameters_type()
def get_actmap(
features: Union[np.ndarray, Iterable, int, float], output_res: Union[tuple, list]
):
am = cv2.resize(features, output_res)
am = cv2.applyColorMap(am, cv2.COLORMAP_JET)
am = cv2.cvtColor(am, cv2.COLOR_BGR2RGB)
return am


class BlurSegmentation(SegmentationModel):
__model__ = 'blur_segmentation'

Expand Down Expand Up @@ -60,17 +72,24 @@ def _get_outputs(self):
def postprocess(self, outputs: Dict[str, np.ndarray], metadata: Dict[str, Any]):
predictions = outputs[self.output_blob_name].squeeze()
soft_prediction = np.transpose(predictions, axes=(1, 2, 0))
feature_vector = outputs.get('repr_vector', None) # Optional output

hard_prediction = create_hard_prediction_from_soft_prediction(
soft_prediction=soft_prediction,
soft_threshold=self.soft_threshold,
blur_strength=self.blur_strength
)
hard_prediction = cv2.resize(hard_prediction, metadata['original_shape'][1::-1], 0, 0, interpolation=cv2.INTER_NEAREST)
soft_prediction = cv2.resize(soft_prediction, metadata['original_shape'][1::-1], 0, 0, interpolation=cv2.INTER_NEAREST)

metadata['soft_predictions'] = soft_prediction
metadata['feature_vector'] = feature_vector

if 'feature_vector' not in outputs or 'saliency_map' not in outputs:
warnings.warn('Could not find Feature Vector and Saliency Map in OpenVINO output. '
'Please rerun OpenVINO export or retrain the model.')
metadata["saliency_map"] = None
metadata["feature_vector"] = None
else:
metadata["saliency_map"] = get_actmap(
outputs["saliency_map"][0],
(metadata["original_shape"][1], metadata["original_shape"][0]),
)
metadata["feature_vector"] = outputs["feature_vector"]

return hard_prediction
Original file line number Diff line number Diff line change
Expand Up @@ -105,12 +105,11 @@ def pre_process(self, image: np.ndarray) -> Tuple[Dict[str, np.ndarray], Dict[st
@check_input_parameters_type()
def post_process(self, prediction: Dict[str, np.ndarray], metadata: Dict[str, Any]) -> AnnotationSceneEntity:
hard_prediction = self.model.postprocess(prediction, metadata)
soft_prediction = metadata['soft_predictions']
feature_vector = metadata['feature_vector']

saliency_map = metadata['saliency_map']
predicted_scene = self.converter.convert_to_annotation(hard_prediction, metadata)

return predicted_scene, soft_prediction, feature_vector
return predicted_scene, feature_vector, saliency_map

@check_input_parameters_type()
def forward(self, inputs: Dict[str, np.ndarray]) -> Dict[str, np.ndarray]:
Expand Down Expand Up @@ -165,38 +164,25 @@ def infer(self,
inference_parameters: Optional[InferenceParameters] = None) -> DatasetEntity:
if inference_parameters is not None:
update_progress_callback = inference_parameters.update_progress
save_mask_visualization = not inference_parameters.is_evaluation
dump_saliency_map = not inference_parameters.is_evaluation
else:
update_progress_callback = default_progress_callback
save_mask_visualization = True
dump_saliency_map = True

dataset_size = len(dataset)
for i, dataset_item in enumerate(dataset, 1):
predicted_scene, soft_prediction, feature_vector = self.inferencer.predict(dataset_item.numpy)
predicted_scene, feature_vector, saliency_map = self.inferencer.predict(dataset_item.numpy)
dataset_item.append_annotations(predicted_scene.annotations)

if feature_vector is not None:
feature_vector_media = TensorEntity(name="representation_vector", numpy=feature_vector.reshape(-1))
dataset_item.append_metadata_item(feature_vector_media, model=self.model)

if save_mask_visualization:
for label_index, label in self._label_dictionary.items():
if label_index == 0:
continue

if len(soft_prediction.shape) == 3:
current_label_soft_prediction = soft_prediction[:, :, label_index]
else:
current_label_soft_prediction = soft_prediction

class_act_map = get_activation_map(current_label_soft_prediction)
result_media = ResultMediaEntity(name=f'{label.name}',
type='Soft Prediction',
label=label,
annotation_scene=dataset_item.annotation_scene,
roi=dataset_item.roi,
numpy=class_act_map)
dataset_item.append_metadata_item(result_media, model=self.model)
if dump_saliency_map and saliency_map is not None:
saliency_map_media = ResultMediaEntity(name="saliency_map", type="Saliency map",
annotation_scene=dataset_item.annotation_scene,
numpy=saliency_map, roi=dataset_item.roi)
dataset_item.append_metadata_item(saliency_map_media, model=self.model)

update_progress_callback(int(i / dataset_size * 100))

Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
from mpa import MPAConstants
from mpa_tasks.apis import BaseTask, TrainType
from mpa_tasks.apis.segmentation import SegmentationConfig
from mpa_tasks.utils.data_utils import get_actmap
from mpa.utils.config_utils import MPAConfig
from mpa.utils.logger import get_logger
from ote_sdk.configuration import cfg_helper
Expand Down Expand Up @@ -71,6 +72,8 @@ def infer(self,
inference_parameters: Optional[InferenceParameters] = None
) -> DatasetEntity:
logger.info('infer()')
dump_features = True
dump_saliency_map = not inference_parameters.is_evaluation if inference_parameters else True

if inference_parameters is not None:
update_progress_callback = inference_parameters.update_progress
Expand All @@ -84,15 +87,13 @@ def infer(self,
stage_module = 'SegInferrer'
self._data_cfg = self._init_test_data_cfg(dataset)
self._label_dictionary = dict(enumerate(self._labels, 1))
results = self._run_task(stage_module, mode='train', dataset=dataset)
results = self._run_task(stage_module, mode='train', dataset=dataset, dump_features=dump_features,
dump_saliency_map=dump_saliency_map)
logger.debug(f'result of run_task {stage_module} module = {results}')
predictions = results['outputs']
# TODO: feature maps should be came from the inference results
featuremaps = [None for _ in range(len(predictions))]
for i in range(len(dataset)):
result, featuremap, dataset_item = predictions[i], featuremaps[i], dataset[i]
self._add_predictions_to_dataset_item(result, featuremap, dataset_item,
save_mask_visualization=not is_evaluation)
prediction_results = zip(predictions['eval_predictions'], predictions['feature_vectors'],
predictions['saliency_maps'])
self._add_predictions_to_dataset(prediction_results, dataset, dump_saliency_map=not is_evaluation)
return dataset

def evaluate(self,
Expand Down Expand Up @@ -208,45 +209,33 @@ def _init_test_data_cfg(self, dataset: DatasetEntity):
)
return data_cfg

def _add_predictions_to_dataset_item(self, prediction, feature_vector, dataset_item, save_mask_visualization):
soft_prediction = np.transpose(prediction, axes=(1, 2, 0))
hard_prediction = create_hard_prediction_from_soft_prediction(
soft_prediction=soft_prediction,
soft_threshold=self._hyperparams.postprocessing.soft_threshold,
blur_strength=self._hyperparams.postprocessing.blur_strength,
)
annotations = create_annotation_from_segmentation_map(
hard_prediction=hard_prediction,
soft_prediction=soft_prediction,
label_map=self._label_dictionary,
)
dataset_item.append_annotations(annotations=annotations)

if feature_vector is not None:
active_score = TensorEntity(name="representation_vector", numpy=feature_vector)
dataset_item.append_metadata_item(active_score, model=self._task_environment.model)

if save_mask_visualization:
for label_index, label in self._label_dictionary.items():
if label_index == 0:
continue

if len(soft_prediction.shape) == 3:
current_label_soft_prediction = soft_prediction[:, :, label_index]
else:
current_label_soft_prediction = soft_prediction
min_soft_score = np.min(current_label_soft_prediction)
max_soft_score = np.max(current_label_soft_prediction)
factor = 255.0 / (max_soft_score - min_soft_score + 1e-12)
result_media_numpy = (factor * (current_label_soft_prediction - min_soft_score)).astype(np.uint8)

result_media = ResultMediaEntity(name=f'{label.name}',
type='Soft Prediction',
label=label,
annotation_scene=dataset_item.annotation_scene,
roi=dataset_item.roi,
numpy=result_media_numpy)
dataset_item.append_metadata_item(result_media, model=self._task_environment.model)
def _add_predictions_to_dataset(self, prediction_results, dataset, dump_saliency_map):
""" Loop over dataset again to assign predictions. Convert from MMSegmentation format to OTE format. """

for dataset_item, (prediction, feature_vector, saliency_map) in zip(dataset, prediction_results):
soft_prediction = np.transpose(prediction[0], axes=(1, 2, 0))
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hard_prediction = create_hard_prediction_from_soft_prediction(
soft_prediction=soft_prediction,
soft_threshold=self._hyperparams.postprocessing.soft_threshold,
blur_strength=self._hyperparams.postprocessing.blur_strength,
)
annotations = create_annotation_from_segmentation_map(
hard_prediction=hard_prediction,
soft_prediction=soft_prediction,
label_map=self._label_dictionary,
)
dataset_item.append_annotations(annotations=annotations)

if feature_vector is not None:
active_score = TensorEntity(name="representation_vector", numpy=feature_vector)
dataset_item.append_metadata_item(active_score, model=self._task_environment.model)

if dump_saliency_map and saliency_map is not None:
saliency_map = get_actmap(saliency_map, (dataset_item.width, dataset_item.height) )
saliency_map_media = ResultMediaEntity(name="saliency_map", type="Saliency map",
annotation_scene=dataset_item.annotation_scene,
numpy=saliency_map, roi=dataset_item.roi)
dataset_item.append_metadata_item(saliency_map_media, model=self._task_environment.model)

@staticmethod
def _patch_datasets(config: MPAConfig, domain=Domain.SEGMENTATION):
Expand Down