Underwater photogrammetry

Hello does anyone have experience with underwater photogrammetry using Pix4Dmatic?

Out of curiosity, what kind of underwater projects are you considering?

Mapping of underwater corridors.

Well it does work!
The hard part is visibility and everything coordinate related (xyz). I did some experimenting a few years ago with a consumer rov and got decent results. Used a ruler for scaling in pix4d mapper and an arbitrary coordinate system

thanks for the reply. I see that the video you sendt is pix4Dmapper. Have you also tested pix4Dmatic?

I have not tried it with Matic yet. Another thing I forgot to mention was that I used video and pulled frames from that.