Historical architecture can be complex in shape, and quality drawings to document their conservation by traditional means can be an interesting, albeit long and tedious process. Photogrametry has been used for some years, but it was not necessarily an economic solution. Today there are new tools which could reduce the costs (time will always be needed…) as Wohlfeil, Strackenbrock and Kossyk describe in their article.
I am amazed that they can do this at all. It’s hard to imagine how this will evolve. Thanks for sharing this.