Drone-based Coral Reef Mapping

I found this interesting article about coral reef mapping. However, if I understand correctly, it has been acquired with underwater imagery.

Is it possible to use drone-based images for mapping coral reefs in very shallow water?
If possible at all, it might be very tricky because of reflections and refraction issues, I guess.

Anyone out there who has experience in this matter?

Best
Reto

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