What we need is a pointer for picking spatial points inside buildings and their rooms, and 3D software which can convert those spatial data
points into a 3D model.
We want to pick floor and ceiling points for corners, and frames of windows and doors and hallways and wall-shape-transitions, etc. The idea is
to save a ton of time taking and scribing measurements with conventional tools, and getting actual accurate shapes of rooms into the model very
quickly.
The model would be imported into Revit for further work, and remodeling to prep for visualization and walk-throughs.
1. How can we get this done, and with what hardware and software?
2. Perhaps finger tracking could work for this, and we would need to know who to contact for more information and possibly assistance
implementing.
3. This seems like a great R&D project if a system is not currently available. We can make resources available for QA testing at NMSU.
We had considered that Kinect might be used, but expect it would not provide accuracy or be useful with a set of procedures that work the same
in all rooms. We expect that something like an ultrasonic system with wand and reference unit would be useful and accurate for these purposes.
Thank You for any assistance you may provide, and for taking the time to respond.
George Szynal
575-415-8205
George, if you can get your hands on Lidar, I endorse its fidelity, although it doesn't seem to know the structure of what its dealing with, it is very close to taking a 3D picture. A decade ago there were folks building virtual models of Science Hall at NMSU Las Cruces; they started from building floor plans and crudely extruded the 3rd dimension of each storey. At Uidaho we have talked about building a mobile robot that would drive around building/updating a 3D model of a building. If you don't find Lidar to be a solution, perhaps we should work together on one.
Yes, lidar (laser scanning) should be exactly what you need. Try to look into terrestrial laser scanning (TLS) devices, there are companies that provide ready to use hardware and software, e.g. Faro http://www.faro.com
Acquiring point clouds is a quite well researched topic in the photogrammetry community, standard problems include registering several scans w.r.t. each other (alignment and registration) and postprocessing (e.g. reconstruction of sparse 3D models or association with semantic information). For buildings, an industry standard exists for representing all aspects of a building over its lifetime, the industry foundation classes (IFC).
There has been a recent research project that concerned with geometric and semantic enrichment of such indoor scans: http://duraark.eu/, there is a "publication" section that should give you quite some hints. I think this publication would be of special interest:
http://www.sciencedirect.com/science/article/pii/S0097849315001119
http://duraark.eu/
http://www.faro.com
http://www.sciencedirect.com/science/article/pii/S0097849315001119
Than you for those references. As I dig into this I'm finding more than I expected, but also nothing specifically designed for exactly our application.
One thought that comes to mind is to combine scanning with a decent camera. I envision a post-scan manipulation where users crop wall sections from related photos and paste them as skins on wall shapes. That would be pretty neat.
Faro is definitely doing good things with their Freestyle handheld scanners. I took a look at LIDAR, and there are several interesting products there.
Lidar Lite is a dirt cheap DIY scanner which could be fun to experiment with.
Velodyne LiDAR offers the Puck Hi-Res and the Puck Lite
http://www.spar3d.com/news/garmin-resurrects-dirt-cheap-lidar-lidar-lite-3-will-cost-150/
http://velodynelidar.com/
You might be interested in Simultaneous localization and Mapping technics and tools that use 3D Camera. These methods enable to reconstruc 3D models of environments as point clouds with compact and autonomous apparatus in real-time, then post-processings can be performed for 3D reconstructions as surfaces. Depending on your requirements, a lot of different devices can be used...
Faro hand scanner uses that kind of technics on small scale cases
Best regards
If you want to combine the precision of laser scans with color information to get textured 3D models you could give Reality Capture a try. It is able to combine LiDAR with photogrammetry data sets.
https://www.capturingreality.com/Product
Excellent! I also discovered that Autodesk has something along these lines, although as with all of these systems we need to try them to see what they can do.
Autodesk ReCap 360
http://www.autodesk.com/products/recap-360/overview?mktvar002=673004&mkwid=sZhw75nfb|pcrid|138354932056|pkw|recap%20360|pmt|p|pdv|c|&&gclid=CjwKEAjwj92_BRDQ-NuC98SZkWYSJACWmjhlHEVVh1WD0BRO5w4gBURNvDODO0FiWgOLOrJW0EMWthoCSvbw_wcB
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