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Supervised learning has held 3D Vision back for too long. Meet RayZer — a self-supervised 3D model trained with zero 3D labels: ❌ No supervision of camera & geometry ✅ Just RGB images And the wild part? RayZer outperforms supervised methods (as 3D labels from COLMAP is noisy) 🌐... show more

Hanwen Jiang

2,379 subscribers

71,634 просмотров • 1 год назад •via X (Twitter)

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Комментарии: 9

Фото профиля Hanwen Jiang

Hanwen Jiang1 год назад

🔍 How does RayZer work? It performs 3D-aware image auto-encoding, which first disentangles images into scene + camera (reconstruction), then re-entangles them back into images (rendering) and learn via RGB loss. The key is splitting the images into two sets — one set to reconstruct scene, and the other to provide supervision, which avoids trivial non-3D solutions.

Фото профиля Hanwen Jiang

Hanwen Jiang1 год назад

🤯 RayZer outperforms supervised methods — why? Turns out, 3D labels from COLMAP are noisy. GS-LRM and LVSM consistently fail on scenes of glasses, high luminance intensity, and white walls. These are cases where COLMAP usually fail. This highlights the need for self-supervised learning — and shows just how powerful it can be.

Фото профиля Hanwen Jiang

Hanwen Jiang1 год назад

RayZer is similar to video generation models philosophically: ❌ No 3D-aware architecture ❌ No 3D representation & rendering equation ❌ No 3D supervision ✅ But 3D awareness emerges. (We show more inference results)

Фото профиля Hanwen Jiang

Hanwen Jiang1 год назад

Joint work with @HaoTan5 @totoro97_ @Haian_Jin @__yuezhao__ @Sai__Bi @KaiZhang9546 @fujun_luan Kalyan Sunkavalli @qixing_huang @geopavlakos

Фото профиля Dmytro Mishkin 🇺🇦

Dmytro Mishkin 🇺🇦1 год назад

Amazing! Dare to try it in Image Matching Challenge? :)

Фото профиля Hanwen Jiang

Hanwen Jiang1 год назад

haha, I don't think it works on images with different lighting conditions now

Фото профиля relu

relu1 год назад

Super cool. I’ve been looking for pose estimation without any supervision from SfM and couldn’t find any papers! Was super surprised. I’m glad someone finally got this working

Фото профиля Jeffrey Ouyang-Zhang

Jeffrey Ouyang-Zhang1 год назад

cool work!

Фото профиля Jang Hyun (Vincent) Cho

Jang Hyun (Vincent) Cho1 год назад

amazing

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