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by ArthurBrussee 605 days ago
Love to hear it!! Most viewers take some shortcuts, like only sorting every so often, it's good to hear the difference is noticable :)

Training a splat requires a lot less setup with this, but does still require running COLMAP(https://github.com/colmap/colmap) first, which is still a big barrier... one thing at a time!
1 comments
dsp_person 605 days ago
Feel the same as GP here.

How expensive is the COLMAP step to run? I was also really impressed with the speed in the demo (but thinking that the shown training was the only step)

Could you ELI5 what the training is versus what the COLMAP part is?

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ArthurBrussee 605 days ago
The input to this are two things - images, and camare poses. The camera poses tell you where each camera was in 3D space (and some of its properties).

The training takes this information, to make a 3D model out it, visually matching all your photos.

COLMAP can still be quite expensive & a hassle sadly, order half hour, as opposed to seconds. There are modern alternatives like https://lpanaf.github.io/eccv24_glomap/, or even deep learning based systems like https://github.com/naver/dust3r

This is definitely still a big blocker to adoption. The goal is to get to a more all-in-one system. The splatting optimization can also help align cameras, if they don't start out entirely random, so any system to quickly provide a good "initial guess" will help here. At least for mobile devices, initialization from ARCore / ARKit poses should be enough.

Keep an eye out :)

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bob112 604 days ago
If you're capturing on a mobile device, why not use Scaniverse? It's about as all-in-one as it gets - you just scan and it'll generate a .ply after a minute or two of processing. They'll host the splat for you in the cloud if you want too.
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jaredkrauss 602 days ago
For me, at least, I want to own all my data, and not give any away without explicit permission. So, even in the case of Scaniverse, I'm reluctant.

But I'm just an artist trying to read and learn, and haven't yet gotten around to actually figuring out how to do all this on my Macbook Pro M1 yet ^-^

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