My entry to the stonehenge reddit challenge proposed by @aligato. Thanks for the source material: https://www.reddit.com/r/GaussianSplatting/comments/1tyeel5/stonehenge_splatoff_same_video_who_gets_the/
Heres my run at the splat-off. Trained this completely on-device with RadianceKit (my Mac app), no colmap, no cuda, no cloud.
The numbers:
- 400 sharpest frames from the shared video at 2048px
- Camera poses: 6 min 43 s (apple photogrammetry backend, 400/400 cameras registered, 166k points)
- Training: 7 min 45 s, 20k iterations at ~43 it/s
- Total from frames to finished ply: about 15 minutes
871k splats, SH degree 3. Hardware was an m3 ultra so ur mileage may vary on smaller machines, but the whole pipeline runs on any apple silicon mac.
Interesting bit I learned during this: I also did a 2 million splat version that scores better on psnr but actually looks worse, way more of that grainy confetti in the grass and on the stones. Less splats trained well beat the big budget visually, the metric just doesnt see it. So this entry is deliberately the smaller one because it looks more natural.
Small note, the hybrid trainer that produced this isnt in the app store build yet, its coming with the next RadianceKit update. Whats live today gets close but this exact recipe is the new one.
The source being a 1440p youtube re-encode definately eats some fine texture detail on the stones, curious how the other entries deal with that.