Positionning cameras only from markers

[tomp]

Hello,
 
I want to model (by hand) a building that I found on Internet. I found 6 photos of different angles taken in different conditions (of the front facade).

I am not trying to do photogrammetry here, I want to use those 6 photos as "helper" in my modeling software. I would like to position (and rotate) those photos according to each other so I could more easily and correctly place the volumes (using the photos as background in different cameras).

I thought this might be possible in photoscan by manually placing markers on the photos and let it compute, but I might be wrong here.

Could someone please give me direction on where to search, and what would the steps be needed.


Thank you very much