I did something similar over a decade ago as part of my master thesis back in university [1]. IIRC this was before most of the tools existed that were mentioned in the article. If you don’t have anything else other than a camera at hand (and no recent iPhone), this should be the most straight forward/cost effective way to generate metrically correct 3d models
Modeling my Grandpa with 3D Photogrammetry (2021)
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Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#12If you have an IPhone I warmly recommend Luma AI for these sort of scans. Their nerf (neural field, not the toy) based photogrammetry pipeline is close to magic.
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#13Scaniverse from Niantic is (really) free on iOS and makes this almost trivial: https://scaniverse.com Apple’s Object Capture looks impressive too: https://developer.apple.com/augmented-reality/object-capture...
somewhat related, apple room plan is really cool
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#14Wonder if anyone has experience with RealityCapture (https://www.capturingreality.com/realitycapture), they also have an iOS app but it seems the original service was for generating 3D models from photos like the author took.
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#15Can we call this photogranpammetry then?
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#16If you have an IPhone I warmly recommend Luma AI for these sort of scans. Their nerf (neural field, not the toy) based photogrammetry pipeline is close to magic.
I heard that the mesh from nerf is rather shabby. Not good enough for 3D printing or (in our case) VFX. Was this your experience?
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#17Does anyone have experience with anything like this on android?
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#18Scaniverse from Niantic is (really) free on iOS and makes this almost trivial: https://scaniverse.com Apple’s Object Capture looks impressive too: https://developer.apple.com/augmented-reality/object-capture...
As far as I can see, It uses LiDAR. Unlike photo-based PG, LiDAR does not get confused by lighting conditions. It is also good for large scenes and environments. The downside of apples lidar is that the mesh is too low resolution for most practical uses.
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#19Scaniverse from Niantic is (really) free on iOS and makes this almost trivial: https://scaniverse.com Apple’s Object Capture looks impressive too: https://developer.apple.com/augmented-reality/object-capture...
As far as I can see, It uses LiDAR. Unlike photo-based PG, LiDAR does not get confused by lighting conditions. It is also good for large scenes and environments. The downside of apples lidar is that the mesh is too low resolution for most practical uses.
I've been playing around with LiDAR apps and I agree; they are amazing for quickly building up models, but especially for anything not room-scale, the resolution is too low for detail work (like 3D printing reproduction) without a lot of touch ups.
More advanced apps seem to combine the data but take a bit longer to come up with a usable model or require post processing.
Re: Modeling my Grandpa with 3D Photogrammetry (2021)
#20Scaniverse from Niantic is (really) free on iOS and makes this almost trivial: https://scaniverse.com Apple’s Object Capture looks impressive too: https://developer.apple.com/augmented-reality/object-capture...
As far as I can see, It uses LiDAR. Unlike photo-based PG, LiDAR does not get confused by lighting conditions. It is also good for large scenes and environments. The downside of apples lidar is that the mesh is too low resolution for most practical uses.
Scaniverse uses both LiDAR and photogrammetry. There are some examples here:
https://sketchfab.com/scaniverse/collections/made-with-scani...
In general, I think the iPhone LiDAR works quite well, even at small scales.