Optimization of _create_object_prediction_list_from_original_predictions for Detectron2 model. Significant speed improvement. #865
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I found the function
_create_object_prediction_list_from_original_predictions
for the Detectron2 model to be quite slow, particularly when working with large images (5400x2700).To improve performance, I have rewritten the function using list comprehension and have only moved necessary objects to the CPU, avoiding early use of tolist().
I managed to get inference time down from ~30sec/it to ~10sec/it
Performance comparison:
Before optimization
After optimization