This was an awesome class on a massive laser scanning effort. The Swedish Parliament evidently required a complete laser scan of their site, including a network of underground tunnels. There's a huge remodeling/renovation need over the next several years and scanning the area is a smart and efficient move in my opinion.

This all means very dense point clouds to capture all the ornate detail – archways, moldings, etc. in case they wanted to 3D print those shapes/profiles later.

If you think about the scale here – the amount of set ups and targets is enormous. Some fascinating lessons learned:

  • Despite hiring out a separate company to do the scans, they focused on a select team of people to do the scans for consistency's sake. Simple setting preferences can make a huge difference as you introduce more/new people to an effort on this scale.
  • Label targets by number. Maybe old news for some, but this makes locating the scans and stitching them together much easier.
  • This one's a bit odd: the smaller the person's wrists, the more rolls of tape they could hold on their wrist for taping up targets as they went. This meant focusing the team on shorter people to scan, as their wrists tended to be smaller.

Zack Creach is a senior engineer for Holder Construction in Atlanta.