if dataset_name == 'sceneflow':
clean_dataset = SceneFlowDatasets(aug_params, dstype='frames_cleanpass')
final_dataset = SceneFlowDatasets(aug_params, dstype='frames_finalpass')
new_dataset = (clean_dataset4) + (final_dataset4)
logging.info(f"Adding {len(new_dataset)} samples from SceneFlow")
why need dataset*4 ? What is the meaning of '*4' ?
Looking forward to your reply , thanks.