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Meshroom – Open-source photogrammetry software

alicevision.org

31–40 of 77 posts

Re: Meshroom – Open-source photogrammetry software

#31
Was this always open source? Somehow in my photogrammetry journey I’ve heard of this and not tried it. I guess I assumed it was proprietary. Anyone have any comments on how this compares to COLMAP? Looks like better UI at least.

Also anyone interested in the subject check out http://reddit.com/r/photogrammetry and http://reddit.com/r/3dscanning

Re: Meshroom – Open-source photogrammetry software

#32
post #21
post #12

Earlier quoted context omitted.

Agisoft Metashape is pretty good as well. Results are comparable to RealityCapture (depending a bit on what you want) but personal license is only 179$. I tried all sorts of free photogrammetry softwares way back but after I tried Metashape I decided to buy a license. With 32 GB of memory it's great. I'm taking photogrammetry models as a hobby - here's a recent one made with Metashape https://skfb.ly/6S6NR

Btw, super shameless plug: If you're looking for 3D capture where photogrammetry doesn't work well (indoors, complex environments) you may find Dot3D ( https://www.dotproduct3d.com/dot3dpro.html ) quite helpful. It uses depth sensors and works on any recent Android or Windows device. You can get a 14 day free trial and we're happy to extend if needed.

That's really cool. I haven't seen photogrammetry offerings that much in the space you are targeting.

How good is the spatial resolution? Do you see your gear competing with Lidar pointcloud scanners any time soon?

Re: Meshroom – Open-source photogrammetry software

#33

Was this always open source? Somehow in my photogrammetry journey I’ve heard of this and not tried it. I guess I assumed it was proprietary. Anyone have any comments on how this compares to COLMAP? Looks like better UI at least. Also anyone interested in the subject check out http://reddit.com/r/photogrammetry and http://reddit.com/r/3dscanning

The install process for Alicevision and Meshroom is a pain in the ass, I basically gave up at some point, would love to hear some input from others though. I'm currently using OpenSFM and it works great, just very slow.

Re: Meshroom – Open-source photogrammetry software

#34

It seems like this has good promise, but scale is random on the output. I've been looking for a good way to make a customized face mask using photogrammetry and my 3d printer, so I'm going to give this a shot. The only issue will be scaling the model so that my head is the right size for the modeling process.

The scale issue is a problem with any software like this unfortunately, it makes doing this type of processing in chunks very difficult as you are getting different scale outputs and nothing really relating the chunks together. OpenSFM does some neat stuff where they use location data and just search for matches between images near that location.

Re: Meshroom – Open-source photogrammetry software

#35
post #19
post #12

Earlier quoted context omitted.

Agisoft Metashape is pretty good as well. Results are comparable to RealityCapture (depending a bit on what you want) but personal license is only 179$. I tried all sorts of free photogrammetry softwares way back but after I tried Metashape I decided to buy a license. With 32 GB of memory it's great. I'm taking photogrammetry models as a hobby - here's a recent one made with Metashape https://skfb.ly/6S6NR

I would echo the recommendation, but add that you really also need a good GPU. All the steps are highly parallelisable and take significantly longer on a CPU only. Agisoft has a relatively simple interface, but there's a lot of complexity underneath if you need to tweak things.

Yeah, GPU helps a lot. I did not mention it as I personally find the idea of a desktop machine without a good GPU... crippled :)

Re: Meshroom – Open-source photogrammetry software

#36

It seems like this has good promise, but scale is random on the output. I've been looking for a good way to make a customized face mask using photogrammetry and my 3d printer, so I'm going to give this a shot. The only issue will be scaling the model so that my head is the right size for the modeling process.

The scale issue is a problem with any software like this unfortunately, it makes doing this type of processing in chunks very difficult as you are getting different scale outputs and nothing really relating the chunks together. OpenSFM does some neat stuff where they use location data and just search for matches between images near that location.

Dumb question: could you not simply include an object in the scene that is of known dimensions and use that to calibrate scale?

Re: Meshroom – Open-source photogrammetry software

#38

Was this always open source? Somehow in my photogrammetry journey I’ve heard of this and not tried it. I guess I assumed it was proprietary. Anyone have any comments on how this compares to COLMAP? Looks like better UI at least. Also anyone interested in the subject check out http://reddit.com/r/photogrammetry and http://reddit.com/r/3dscanning

The install process for Alicevision and Meshroom is a pain in the ass, I basically gave up at some point, would love to hear some input from others though. I'm currently using OpenSFM and it works great, just very slow.

Huh. I downloaded the binaries from their website and they run directly on my Ubuntu 18.04 machine with Cuda 10.2. Which is rare.

Re: Meshroom – Open-source photogrammetry software

#39

It seems like this has good promise, but scale is random on the output. I've been looking for a good way to make a customized face mask using photogrammetry and my 3d printer, so I'm going to give this a shot. The only issue will be scaling the model so that my head is the right size for the modeling process.

I'm doing custom face masks as we speak! Buy yourself a set of calipers or mark out a distance on your face before you scan...

Re: Meshroom – Open-source photogrammetry software

#40
post #32
post #21

Earlier quoted context omitted.

Btw, super shameless plug: If you're looking for 3D capture where photogrammetry doesn't work well (indoors, complex environments) you may find Dot3D ( https://www.dotproduct3d.com/dot3dpro.html ) quite helpful. It uses depth sensors and works on any recent Android or Windows device. You can get a 14 day free trial and we're happy to extend if needed.

That's really cool. I haven't seen photogrammetry offerings that much in the space you are targeting. How good is the spatial resolution? Do you see your gear competing with Lidar pointcloud scanners any time soon?

Yes, we're getting there. Of course a > $50k laser scanner will still outperform it in terms of accuracy but the new generation of depth sensors (e.g. Intel RealSense L515) is really quite good. We're going to announce support for this very soon and will also put some datasets online for comparison.
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