SteamVR

SteamVR

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3D scan of a ruin in a forest
   
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360.696 MB
25 Jun, 2022 @ 9:31am
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3D scan of a ruin in a forest

Description
This scan is reconstructed from videos taken by a helmet-held 360 camera (Gopro Max) and by walking about 400 meters in a ruin and a forest (somewhere in France). It has 1.7M triangles and 5 8k textures. It is computed by photogrammetry methods that i design, implement and experiment, without manual clean up (see the "true" result).

The series of small gray cones show poses of the 360 camera, which are selected by/for the computations. The scan is best viewed by navigating at the neighborhood of these cones.

This example and many others are available at https://maximelhuillier.fr/ for many VR headsets such that the user can move continuously as a pedestrian in the scans. See also https://sidequestvr.com/user/330664 for installations using SideQuest.
5 Comments
byteframe 12 Sep, 2022 @ 11:14am 
thank you for porting all your environments from sidequest to steamvr that's very nice of you.
ancient 24 Aug, 2022 @ 4:47pm 
Sadly my motorolla phone lagged and turned off after trying to download and load your 3D model as preview, so now I'm gonna watch Your video on YouTube instead from PC.
I guess1.7M triangles is way too much for 2017 phone XD :yay:
maxime.lhuillier  [author] 9 Jul, 2022 @ 10:57am 
This is more clear with indentation: i would like to say

1: for i from 1 to 1000
2: -- Walk one small step of about 40cm
3: -- for j from 1 to 4
4: ---- take one shot by clicking on a button, turn about 90 degrees
maxime.lhuillier  [author] 9 Jul, 2022 @ 9:29am 
Hi Puffycheeks.
I take two synchronized 4096*1344 videos at 30hz by walking about 400m during 509 seconds for this 3D model.

Now assume that i redo the same trajectory with a second acquisition method that needs to rotate the camera by myself:

1: for i from 1 to 1000
2: Walk one small step of about 40cm
3: for j from 1 to 4
4: take one shot by clicking on a button, turn about 90 degrees

Assume that line 4 takes about one second (and neglect the walk time).
Then the second method takes about 4000 seconds and i need to click/rotate 4000 times.
The first method is not only faster but also less tiring than the second one.

Note that
- 2330 keyframes are automatically extracted from the video for the 3D computations, which equivalent to a step of about 17cm (instead of 40cm).
- small enough (but not too small) steps are needed for the computations
Puffy 8 Jul, 2022 @ 2:35pm 
All these maps are very interesting to look at, I wonder long how this takes you compared to taking every angle of each photo. Also would really enjoy the option to remove the camera markers.