الباحثون

Dingwei Xian

المنشورات 2

نسخة أولية وصول مفتوح

DynStream: Online Streaming 4D Gaussian Reconstruction of Dynamic Worlds from Unposed Video

Dingwei Xian, Xiaoyu Zhou, Yajiao Xiong وآخرون · 2026

Online reconstruction of dynamic 4D scenes from long, unposed streaming videos requires both continuous processing and photorealistic rendering, which existing methods struggle to achieve simultaneously. Existing feed-forward Gaussian methods are restricted to offline processing, whereas online point-cloud approaches s …

نسخة أولية وصول مفتوح

ChronoWorld: Camera-Controlled Consistent 4D World Generation via Spatiotemporal Cues and Geometric Reflections

Xiaoyu Zhou, Dingwei Xian, Zhenyu Wang وآخرون · 2026

While existing camera-controllable video generation models can produce visually compelling sequences, preserving intrinsic 4D spatiotemporal coherence remains challenging. To address this limitation, we propose ChronoWorld, an "Observation--State--Reflection" framework that leverages spatiotemporal causal cues and reco …

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