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Scope TF imports in DetectMultiBackend() #5792

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Merged
merged 4 commits into from
Nov 25, 2021
Merged

Scope TF imports in DetectMultiBackend() #5792

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d16c89b
tensorflow or tflite exclusively as interpreter
phodgers Nov 25, 2021
5d85639
Scope imports
glenn-jocher Nov 25, 2021
276f64b
Nested definition line fix
glenn-jocher Nov 25, 2021
994c22a
Update common.py
glenn-jocher Nov 25, 2021
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6 changes: 4 additions & 2 deletions models/common.py
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Original file line number Diff line number Diff line change
Expand Up @@ -337,7 +337,10 @@ def __init__(self, weights='yolov5s.pt', device=None, dnn=True):
context = model.create_execution_context()
batch_size = bindings['images'].shape[0]
else: # TensorFlow model (TFLite, pb, saved_model)
import tensorflow as tf
if 'edgetpu' in w.lower():
import tflite_runtime.interpreter as tfli
else:
import tensorflow as tf
if pb: # https://www.tensorflow.org/guide/migrate#a_graphpb_or_graphpbtxt
def wrap_frozen_graph(gd, inputs, outputs):
x = tf.compat.v1.wrap_function(lambda: tf.compat.v1.import_graph_def(gd, name=""), []) # wrapped
Expand All @@ -354,7 +357,6 @@ def wrap_frozen_graph(gd, inputs, outputs):
elif tflite: # https://www.tensorflow.org/lite/guide/python#install_tensorflow_lite_for_python
if 'edgetpu' in w.lower():
LOGGER.info(f'Loading {w} for TensorFlow Lite Edge TPU inference...')
import tflite_runtime.interpreter as tfli
delegate = {'Linux': 'libedgetpu.so.1', # install https://coral.ai/software/#edgetpu-runtime
'Darwin': 'libedgetpu.1.dylib',
'Windows': 'edgetpu.dll'}[platform.system()]
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