Summary: 10 instances, 8 unique

Text	Count
# TODO make it support different-sized images	1
# TODO can allow dataset as an iterable or IterableDataset to make this function more general	1
# TODO make this more general	1
# TODO consider examining below deepcopy as it costs huge amount of computations.	1
# FIXME h_boxes takes the last one computed, keep this in mind	1
# TODO: get padding mask	1
# TODO: currently we assume image and label has the same filename but	3
# TODO use valid to mask invalid areas due to padding in loss	1