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Interesting application of photogrammetry and SfM

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dmyhill
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It seems like it produces results much like radar interferometry.

http://fairbanksfodar.com/


 
Posted : June 27, 2016 3:11 pm
chris-mills
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At a quick glance I couldn't see any reference to the flying height (cue : 200 members to point it out to me). The resolutions stated are therefore a bit meaningless although as they do not seem very high then the height is presumably quite high.

What it produces over a large area is similar to what an SUA ;produces over a small area. The SUA accuracies are somewhat better due to the low flying height.


 
Posted : June 28, 2016 8:48 am
dmyhill
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chris mills, post: 379293, member: 6244 wrote: At a quick glance I couldn't see any reference to the flying height (cue : 200 members to point it out to me). The resolutions stated are therefore a bit meaningless although as they do not seem very high then the height is presumably quite high.

What it produces over a large area is similar to what an SUA ;produces over a small area. The SUA accuracies are somewhat better due to the low flying height.

I think that he is indeed extrapolating what a typical UAS flight would produce, but over a larger area. The combination of GPS/Photogrammetry AND SfM is what he seems to feel is the innovation. I don't know enough about the nuts and bolts to say, however. He is the professor.

He only claims an absolute accuracy in the decimeter range, but that is pretty good for a Cessna, an off the shelf DSLR and an GPS receiver, I think.


 
Posted : June 28, 2016 10:27 am
tim-reed
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They seem to have quite a bit of junk in the river out by Tuntutuliak.

Attached files


 
Posted : June 28, 2016 12:16 pm
dmyhill
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Tim Reed, post: 379325, member: 420 wrote: They seem to have quite a bit of junk in the river out by Tuntutuliak.

That is quite the wave!


 
Posted : June 28, 2016 1:05 pm