Projecting Bounding boxes on Image

[SRIKARHI]

I am using flir_bfc camera images for some experiments
It has the following keys : dict_keys(['box2d-detectron-cyl', 'img', 'poly2d-detectron-cyl', 'img-cyl'])

Here box2d-detectron-cyl section has (x, y, h ,w) values which are normalized. How can I get the Bounding box data for flir_bfc image.

I also wanted to know where can I get the class id to string mapping table.