Structure from Motion Octocopter - Computerphile

Creating 3D models with an Octocopter, a camera and some custom software. Christian Mostegel, Research Assistant at TU Graz in Austria explains some of the technology behind the 3D Pitoti Project.

This video was filmed and edited by Sean Riley.

[mogami]

I like that you are actually recommending a book in the end each time, as compared to many other channels who are sponsored by Audible and just tell me to follow their link..thank you!

[hcblue]

Such a cool device / technology. Thanks for covering both the theoretical / low-level subjects, e.g., algorithms, and more practical applications / projects, Sean!

[ZadakLeader]

The sounds of forks and metal things in the background...

[Aragorn]

This sounds a lot like what senseFly does, but at higher resolution and with more autonomy. Their system is used for mapping cities some, plus keeping track of agriculture growth and all sorts of other things. I could see them approaching these guys to buy their technology for sure.

[IDontDoDrumCovers]

the next google earth is be crazy haha, just imagine like 10, 000 of these flying around cities taking pictures of everything in swarms

[NikiDaDude]

On a related topic I'd really like to see a video on the software Google use to generate the detailed topography in Maps and Earth.
If you look at most major cities you'll see that all the buildings, trees and even small objects like cars have been turned into a polygon mesh and textured.

[yomaze]

It would be interesting to see different forks in the learning algorithm that focus on detecting properties of "challenging objects" and see how quickly it "decides" to use alternate techniques to get full coverage of the object. I Imagine crowdsourcing the determination of what areas of a 3d model "need more work" by offering the 3d model alongside the video taken by the device online. Also include that ability for the "crowd" to slice into the 3d model to isolate the "least defined" component of the feature. The system could then attempt a solution and provide it back to the crowd for further analysis. Could be made to be fun as a game of sorts!

[jmacx]

Hey Sean would you consider using a monopod stand for your videos? I know it's like the trademark to have that shaky cam, but it's a bit unsettling at times, especially when the camera is pointing a single direction most of the time anyway. I don't want to interrupt your seemingly quick workflow, but something like that could be easily maneuvered to adjust for those close up shots you get, and something with only a single leg wouldn't be too cumbersome to rotate or quickly move. Just a suggestion cause your videos rock.

[Adamantium]

How does the vehicle keep track of its own position in order to report where each picture was taken from?

[yourfilmindustry]

They're not rocks, they're are minerals!

[Durakken]

Is the reason it has to be a static object due to processing power or some algorythmic problem? I don't see why a motion prediction algorythm couldn't be incorporated into that considering that a lot of animation is based on prediction algorythms now other than the render time for those things, but usually that is due to the quality of the render and not the animation I think.

[TheKirkster]

What if the intelligence could identify the position and dimensions of some vegetation (like a tree) and then just generate a model to fill in that space and give the viewers a representation of "hey there is some tree there, but we can't scan each branch and every leaf into a accurate model."

[MVR_]

Who where the first to introduce photogrammetry to machine learning?

[gen]

Early, but not first. Not that I care, just wanted to tell others about it.

About the video: Non-English speaker speaking English makes it a little hard when he isn't fluent enough. I understood enough, but needs to understand sentence structure a little bit.

[Hwyadylaw]

This is just me being a language geek, and not relevant to the video, but I feel like the ones with four rotors should be called Tetracopter instead of Quadrocopter.

[jmacx]

As soon as he said _intelligence_ i cringed a little. I don't want that to become the next buzz word. An algorithm like that does not equate to intelligence in my opinion. Everything about this guy seems off to me.

[rockosigafredi]

Who's here is also from Austria? :-D

[GroovingPict]

could you maybe film in a place with even more background noise next time? Thanks. I was almost able to focus on what he was saying in this one, and we cant have that now can we.

[NeatNit]

Is it really impossible for you to drop the Audible sponsoring? It's getting really annoying.

[titaniumdiveknife]

Genius! Wish my German and programming were half as good as his English.