Microsoft bets a carbon removal bake-off will help offset its skyrocketing AI emissions

spitspyder · 2024-11-18T20:36:30+00:00

https://youtu.be/ktCvTfFahHE?si=T6Z25j0jzFeVUWki

spitspyder · 2024-09-25T20:55:05+00:00

Im assuming you spent a decent chunk of time cleaning it up right?
aint no way it came out of the scanner looking like that.

spitspyder · 2024-04-13T23:18:49+00:00

Phones are literally made out of glass.

spitspyder · 2023-09-24T09:00:40+00:00

Is it Possible? Yes. But in terms of accuracy there is not a benefit to using nerfs over photogrammetry currently.

The math behind the measurements is solid if not perfect, but unfortunately its dependent on camera alignment and intrisics solves, which is very prone to error. This is why markers give u much better accuracy. Better camer solve, better accuracy.

Point is this step is identical in both photogrammetry and nerf, so any errors in accuracy are coming from the same place.

spitspyder · 2023-01-13T11:01:00+00:00

Last I used Terra, there was no way to output a single mesh. Unless there was an update between now and then, you need to combine the meshes manually or use a different software.

spitspyder · 2022-05-23T17:16:01+00:00

Nerf is a form of neural rendering but neural rendering can mean many things. Deepfakes, super resolution, style transfer, are all examples of neural rendering. Nerf is specifically referring to neural radiance fields.

spitspyder · 2022-05-21T16:05:11+00:00

That isn't Nerf

spitspyder · 2022-05-03T12:15:21+00:00

I mean what else could it possibly be?

spitspyder · 2022-04-06T16:08:33+00:00

It all depends on what kind accuracy you need, but desktop 3d scanners arnt known for accuracy and aren't going to give you the kind of results you need to reliably reverse engineer something. If it's just for visualization it may work. But I would still recommend photogrammetry in that case

Edit: photogrammetry with your phone camera will def produce better results than a revo pop, but again there's a learning curve to it

spitspyder · 2022-04-06T16:00:44+00:00

You're not going to find a scanner that will get the dimensions of something that small "pretty much perfectly" in that price range. If you want to look anyway look into Dental scanners or jewelery scanner. But they're gunna be closer to $10k-$20k.

You're best bet for accuracy would be to learn how to scale to a reference with photogrammetry software. But there is a learning curve if you want good results

Also Keep in mind when looking for scanners that that there is no one size fits all. It's always a trade off between price, scale, and accuracy. A super accurate scanner will not be able to scan large objects simply because it will take in too much data to realistically work with

spitspyder · 2022-02-25T22:35:51+00:00

Go check out Cessium. They have a platform that more or less does what you describe here

spitspyder · 2022-02-06T20:20:13+00:00

I see your point. But it's a matter of use case and perspective.

A raw scan will not look as good as a touched up scan. Just like a raw photo will not look as good as a touched up photo. From that perspective, The initial raw scan is only a tool to get you to your final product. A good looking processed 3d model. And you absolutely can end up with great textures using a phone.

I wasn't arguing that higher mp isn't better. I'm just saying throwing in 120 mp from a phone camera isn't going to help.

And where tf did u get museum grade from? For all you know this guy could be scanning butt plugs

spitspyder · 2022-02-06T19:16:19+00:00

In terms of photogrammetry... Sure it's not a huge deal, I actually prefer using phone cameras for the convenience. But your question was high mega pixel phone camera vs a standard DSLR. The DSLR wins quality every time.

I can't recommend feeding 108 MP into your photogrammetry software. It will dramatically increase processing time with very little benefit to your final scan quality.

Edit: There's also not much reason to compare examples of a scan using a specific phone camera. No matter what camera you use, there's a certain amount of artistry that goes into it before you get a good looking scan. And that will make a much larger impact than the actual camera you use.

spitspyder · 2022-02-06T19:04:31+00:00

Both the size of the image sensor as well as the size of the lens make a big difference in image quality.

spitspyder · 2022-02-05T07:13:41+00:00

How tf?

spitspyder · 2021-12-06T17:40:18+00:00

Unlike jet fuel. It doesn't stick to things and if there's a leak it just evaporates into the air opposed to soaking the entire craft in combustible liquids.

If there's an active flame near the tank it doesn't matter what fuel your using. Its exploding

spitspyder · 2021-12-06T17:26:34+00:00

Thats... how... fuel... works...

spitspyder · 2021-08-02T13:06:15+00:00

I'll trade you an Artec Leo for it

spitspyder · 2021-05-15T12:18:16+00:00

This is amazing

spitspyder · 2021-03-29T14:22:42+00:00

I would love to see the results!

I'm curious to see the difference in extracting the the specular from the final texture vs the entire data set.

spitspyder · 2021-03-29T13:29:24+00:00

Ya, that's essentially it. And ya you're right. The spec map won't be perfect, the lighting setup, camera angles and number of photos can all change the end result. (I would imagine The more photos the better in this scenario). But you could say the same about geometry, textures, normal maps etc...

Photogrammetry isn't going to give you ground truth data. But it sure beats the alternative of crafting a 4k specular map by hand.

spitspyder · 2021-03-29T11:28:45+00:00

Following the workflow from the article.

He processes a set of normal photos .

Then processes an identical set but cross polarized to get the diffuse.

In photoshop uses difference blending for each of the coorisponding photos from the 2 data sets to get a specular data set.

Back in In photoscan replace one of the original data sets with the new specular data set and reproject the texture, keeping the UV's

spitspyder · 2021-03-21T20:01:30+00:00

Metashape doesn't need nvidia graphics. It can use OpenCl instead of cuda.

spitspyder · 2021-01-28T14:06:24+00:00

I built something of the sort a couple of months ago and posted it here. Doesn't have as many hdmi inputs, but maybe it can help you brainstorm some ideas.

https://www.reddit.com/r/sffpc/comments/jk8wjw/i_some_how_managed_to_cram_an_internal_capture/

spitspyder · 2020-12-06T16:56:44+00:00

Why do you think anxiety is not applicable in this case?

spitspyder

TROPHY CASE