Missing calc_iou_between_indices module when running concate_captions_with_iou.py

[Kezia-Nathania]

Hi, thank you for sharing your great work on RegionPLC!

While reproducing the RegionPLC code, I encountered the following error when running tools/process_tools/concate_captions_with_iou.py:

ModuleNotFoundError: No module named 'calc_iou_between_indices'

After checking through the repository, I noticed that the module calc_iou_between_indices is not included anywhere in the codebase, nor does it appear to be generated during compilation.

Could you please advise how to resolve this? Any guidance would be greatly appreciated.