Successfully playing a "midv502 4k patched" file is non-trivial. You cannot rely on a standard web browser or a cheap smart TV's default player. Here is what you need:

The inclusion of (3840 x 2160 pixels or 4096 x 2160) immediately raises a technical question: Was the source material shot in 4K, or is this an upscale?

Use the ground truth coordinates in the dataset to warp the document into a flat, top-down view.