Olá, tenho uma sugestão de estudo de caso, a startup ConstructIN.

Talvez auxilie ver o que o mercado está fazendo e assim buscar uma lacuna.

https://www.constructin.com.br/

Ciao Raffaella De Marco ! Regarding 360° 3D Photogrammetry I have done some experiences in urban canyons that may you can find interesting, especially for geometric features comparison with SLAM and TLS. I share here an article that may can contribute to the discussion:

Article REMOTE SENSING AND CITY INFORMATION MODELING FOR REVEALING T...

- Question 1 -

Metashape is what you need. Indeed, from this type of camera, you will obtain panoramas. The last time I checked Reality Capture is not able to process natively this type of image (even if there are some API projects around this topic). In Agisoft you can set from the Options the type of camera (in this case, spherical) and you are ready to go. The results of the article above have been achieved with Agisoft.

- Question 2 -

About the Ricoh THETA V, I bought the Ricoh THETA SC2 for personal use and I find it very useful especially for low-cost urban projects. It has the same resolution and same ISO sensibility as the THETA V (but it is cheaper!). I would recommend the THETA X since for photogrammetry 'the more resolution the better' and the X one seems to have a resolution of 11.008×5504 while the Z1 6720x3360. The Z1 is designed especially for real estate business activities so you will pay more for some features that I doubt you will find useful on-site for SFM purposes.

- Question 3 -

That totally depends on the device in which you run the Richo THETA App since these 360 cameras do not include a GPS receiver. In an average smartphone today you have an accuracy of 1 meter (at most). In my experience, this georeferenced data is useful only for the visualization process or to establish in which area of a street or urban area you took the picture. This is because when you will process the images, Agisoft will take into account for its internal parameters the GPS position acquired with the photo. This can lead to very low performance in comparison with the same process without this data. For this need, I would recommend using (and testing before) a high-end smartphone and/or a device that can improve the GPS signal of the latter. In conclusion, if your need is to georeference 3D model obtained from 360 photogrammetry, you can use something like the Leica Zeno FLX100 that can offer enough accuracy for GIS/Territorial applications (2/3 cm) and it's very light to carry with you (and not so expensive for the performances you are buying). In this case, you will need several targets across the object of your work to georeference but it's totally worth it and way more efficient.

Hope you will find useful these suggestions! I have partners in Cyprus that used the Z1 for urban survey and modeling purposes after they have seen my workflow in the article I shared. However, there is a very wide literature that is emerging about this topic, I will follow with attention the updates of your question. Un forte abbraccio!

PS. I upload an image of an exterior scene processed with Metashape and the GOPRO360.

Here are some best practices to follow when using these cameras for 3D photogrammetry: