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L3G-World: Real-Time Infinite World Generation with Latent 3D Gaussian Memory

Generates explorable video worlds from a single image and camera trajectory while using persistent 3D Gaussian memory to preserve spatial consistency. Storing VAE features in the memory enables direct latent-space conditioning and reported generation at 9 FPS.

Introduction

Long-horizon world generation faces a counterintuitive bottleneck: a scene can remain visually coherent only if its past is remembered, but accumulating every generated frame makes that memory increasingly expensive. The key idea here is to make memory grow with newly explored space—not with the length of the video—and to store it in the same latent representation used by the generator.

Information

  • Websitearxiv.org
  • OrganizationsKAIST AI, Ewha Womans University, KAIST Urban AI Institute
  • AuthorsJinhyeok Choi, JoungBin Lee, Jongmin Lee, Minkyeong Jeon, Jiyoung Kim, Kaeun Han, Yoonjin Yoon, Seungryong Kim
  • Published date2026/10/29

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