Author

Xin Li

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Preprint Sep 2026

VideoTok4D: A 4D-Aware Video Tokenizer for Compact World Representation

Video tokenizers have emerged as a cornerstone of modern video modeling, underpinning progress in compression, reconstruction and generation by mapping high-dimensional visual signals into compact latent spaces. However, despite this progress, current tokenization paradigms largely remain within the 2D visual domain, t...

Xin-Yi Chen, Han-Xin Zhu, Xi-Jun Wang et al. · 0 citations

Preprint Aug 2026

CoT-Edit: Let CoT Guide Instruction Video Editing

Text-driven instruction-based video editing in complex scenes remains challenging: purely textual prompts often fail to capture precise spatial relationships and physical constraints, resulting in target ambiguity and physically implausible outcomes. To address this, we propose a plan--guide--edit framework that explic...

Sen Liang, Fengbin Guan, Youliang Zhang et al. · 5 citations