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TZID:Asia/Hong_Kong
X-LIC-LOCATION:Asia/Hong_Kong
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TZOFFSETFROM:+0800
TZOFFSETTO:+0800
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DTSTART:19911015T033000
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BEGIN:VEVENT
DTSTAMP:20251218T030656Z
LOCATION:Meeting Room S423+S424\, Level 4
DTSTART;TZID=Asia/Hong_Kong:20251217T112300
DTEND;TZID=Asia/Hong_Kong:20251217T113400
UID:siggraphasia_SIGGRAPH Asia 2025_sess135_papers_1915@linklings.com
SUMMARY:WorldExplorer: Towards Generating Fully Navigable 3D Scenes
DESCRIPTION:Manuel-Andreas Schneider, Lukas Höllein, and Matthias Niessner
  (Technical University of Munich)\n\nGenerating 3D worlds from text is a h
 ighly anticipated goal in computer vision. Existing works are limited by t
 he degree of exploration they allow inside of a scene, i.e., produce strec
 hed-out and noisy artifacts when moving beyond central or panoramic perspe
 ctives. To this end, we propose WorldExplorer, a novel method based on aut
 oregressive video trajectory generation, which builds fully navigable 3D s
 cenes with consistent visual quality across a wide range of viewpoints. We
  initialize our scenes by creating multi-view consistent images correspond
 ing to a 360 degree panorama. Then, we expand it by leveraging video diffu
 sion models in an iterative scene generation pipeline. Concretely, we gene
 rate multiple videos along short, pre-defined trajectories, that explore t
 he scene in depth, including motion around objects. Our novel scene memory
  conditions each video on the most relevant prior views, while a collision
 -detection mechanism prevents degenerate results, like moving into objects
 . Finally, we fuse all generated views into a unified 3D representation vi
 a 3D Gaussian Splatting optimization. Compared to prior approaches, WorldE
 xplorer produces high-quality scenes that remain stable under large camera
  motion, enabling for the first time realistic and unrestricted exploratio
 n. We believe this marks a significant step toward generating immersive an
 d truly explorable virtual 3D environments.\n\nRegistration Category: Full
  Access, Full Access Supporter\n\nSession Chair: Or Patashnik (Tel Aviv Un
 iversity, Snap Research)\n\n
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