Room Capture Only using 4 images of 300 In Image alignment.

, that is extremely helpful, for a RC representative (?) to say clearly that laser scan is the straightforward way with ‘clean’ interiors. In years, I haven’t seen anyone say that clearly on this forum. So now we know!

It’s also disappointing, as photogrammetry held the promise of ultra-fast capture with simple portable equipment (camera), as well as the ability to capture every hidden corner, which laser scanning from few station-positions can’t.

It’s also puzzling, as a succesful industry captures interiors for e.g. estate agents at high speed and low cost, by the SLAM version of photogrammetry, Paracosm being the latest arrival.

I still think sometimes I should offer to work as slave-assistant-apprentice for e.g. Götz Echtenacher, to learn his secrets with interiors!

Mike, post-processing as you describle is absolutely prohibitive, from my perspective.

The new building industry ‘BIM Alliance’ led by Bricsys CAD within Hexagon Corp which also owns Leica, plus collaborating architecture and engineering cos, aims to make ‘Scan to BIM’ a practical reality, whereby exterior and interior scans combine to leave a void volume between, which is the structure of the building - and AI (which Bricsys pioneers) then creates as CAD solids and designates as walls, floors, ceiling, roofs etc - all automatically. So far, only Leica’s speciality, laser scanning, is envisaged as scan source, while other CAD/BIM cos see photogrammetry as equally important i.e. mixed sources combined, as suggests