Darpa Seeks Tools to Capture Underground Worlds in 3D
1–10 of 25 posts
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#2This is the more enticing website:
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#3How far are built in phone gyroscopes from providing inertial tracking for underground, it would be handy to walk around Tube stations and see how there're all connected, but the accuracy seems to be someway off.
Although this looks to be a lead:
https://aaltovision.github.io/handheld-INS/assets/presentati...
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#4How far are built in phone gyroscopes from providing inertial tracking for underground, it would be handy to walk around Tube stations and see how there're all connected, but the accuracy seems to be someway off. Although this looks to be a lead: https://aaltovision.github.io/handheld-INS/assets/presentati...
For larger environments you tend to need a full-blown SLAM system that can close loops to avoid drift that accumulates inevitably.
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#5How far are built in phone gyroscopes from providing inertial tracking for underground, it would be handy to walk around Tube stations and see how there're all connected, but the accuracy seems to be someway off. Although this looks to be a lead: https://aaltovision.github.io/handheld-INS/assets/presentati...
Like, as in dead reckoning? It's always a sketchy approximation, without a good caliberation, to zero the frame of reference, dead reckoning is guess work, until you hit the next benchmark.
By definition, it's like dunking underwater, and swimming in the dark with your eyes closed. You don't know how accurate your frame of reference is until you reach out to grab a landmark and open your eyes, to recaliberate.
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#6How far are built in phone gyroscopes from providing inertial tracking for underground, it would be handy to walk around Tube stations and see how there're all connected, but the accuracy seems to be someway off. Although this looks to be a lead: https://aaltovision.github.io/handheld-INS/assets/presentati...
too much drift, they are very noisy. double integration is hard.
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#7How far are built in phone gyroscopes from providing inertial tracking for underground, it would be handy to walk around Tube stations and see how there're all connected, but the accuracy seems to be someway off. Although this looks to be a lead: https://aaltovision.github.io/handheld-INS/assets/presentati...
For larger environments you tend to need a full-blown SLAM system that can close loops to avoid drift that accumulates inevitably.
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#8ADR scanning. - https://adrokgroup.com/
also available in small - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2008164/
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#9Earlier quoted context omitted.
For larger environments you tend to need a full-blown SLAM system that can close loops to avoid drift that accumulates inevitably.
SLAM? https://en.m.wikipedia.org/wiki/Simultaneous_localization_an...
Yes, this is what he means. It uses visual/laser information (sometimes combined with the IMU like the phones you talk about) to map and track movement.
Re: Darpa Seeks Tools to Capture Underground Worlds in 3D
#10[deleted]