Agisoft Metashape

Agisoft Metashape => General => Topic started by: SimonBrown on June 05, 2021, 11:36:28 AM

Title: Metashape Professional and Coral Reef Measurement
Post by: SimonBrown on June 05, 2021, 11:36:28 AM
AccuPixel are collaborating with the Submerged Resources Center of the US National Parks Service with the intention of pushing the boundaries of underwater photogrammetry, working with multiple cameras and UWIS underwater GPS positioning data.

More details here:

https://accupixel.co.uk/2021/06/03/national-parks-service-collaboration-with-accupixel/ (https://accupixel.co.uk/2021/06/03/national-parks-service-collaboration-with-accupixel/)
Title: Re: Metashape Professional and Coral Reef Measurement
Post by: xabierr on June 10, 2021, 10:17:09 AM
Hi Simon,

Amazing work!  I am sure using UWIS GPS is improving processing performance for large projects but are you also finding significant accuracy improvements?

cheers,

Javier
Title: Re: Metashape Professional and Coral Reef Measurement
Post by: SimonBrown on June 12, 2021, 11:04:56 AM
Amazing work!  I am sure using UWIS GPS is improving processing performance for large projects but are you also finding significant accuracy improvements?

UWIS does three things:

Navigate - it helps us find the target quickly (https://deep3d.co.uk/2021/04/23/back-in-the-water/ (https://deep3d.co.uk/2021/04/23/back-in-the-water/)) using a sonar overlay on the tablet.

Scale - merge the UWIS GPS data with cameras for reconstruction constraints (https://deep3d.co.uk/2020/02/04/accuracy-defined/) (https://deep3d.co.uk/2020/02/04/accuracy-defined/))

Geo locate - whereabouts in the world is the subject and how does it relate to others?

We have a little app that takes camera and UWIS data and merges them - https://deep3d.co.uk/2020/06/03/you-need-an-app-for-that/ (https://deep3d.co.uk/2020/06/03/you-need-an-app-for-that/) - and version 2 is under development right now, adding a few features to refine accuracy.

And whilst much of this has been available in the terrestrial arena, underwater positioning has been the preserve of military or oil field sized budget holders - until now.

So for us, UWIS adds significant capacity and capability.
Title: Re: Metashape Professional and Coral Reef Measurement
Post by: RHenriques on June 13, 2021, 05:44:12 AM
Hi Simon

What's the cost of a  UWIS GPS system?
Best Regards
Title: Re: Metashape Professional and Coral Reef Measurement
Post by: SimonBrown on June 14, 2021, 06:01:29 PM
What's the cost of a  UWIS GPS system?

It really depends what your needs/requirements are, but for single diver tracking then this:

https://accupixel.co.uk/product/uwis-tracker-single-diver-rov/ (https://accupixel.co.uk/product/uwis-tracker-single-diver-rov/)

Would get you started. This would also enable merging of camera positions with GPS data via our App (Accupixel are the UK dealer for UWIS and customers get the app).

Tablet for bidirectional comms and navigation is extra, as is additional tracker units.

Hope this helps?
Title: Re: Metashape Professional and Coral Reef Measurement
Post by: RHenriques on June 15, 2021, 08:01:56 PM
Thank you so much SimonBrown

This is one of the most promising systems I saw so far for this purpose.
Best Regards