WorldCrafter: Consistent Video World Model with Implicit 3D-aware Memory
[Widzenie komputerowe] Autorzy: Wangbo Yu, Kunhao Liu, Wenbo Hu i 8 więcej
Video world models enable interactive exploration of dynamic environments, yet struggle to respect prior observations over long horizons and across viewpoints. We present WorldCrafter, a video world model that learns a camera-queryable implicit 3D-aware memory for this purpose. The key insight is to let the requested viewpoint shape how multi-view evidence is compressed into the video generator's limited token budget. Trained jointly with the video generator, a memory encoder and pose-conditioned readout module integrate historical observations into a fixed set of target view-specific tokens before denoising, without explicit depth-based correspondences. By combining this memory with recent temporal context and few-step distillation, WorldCrafter enables streaming scene exploration from a single input image or text prompt. Experiments across static and dynamic scenes show substantial ga…
- Kategoria arxiv
- cs.CV
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- Widzenie komputerowe