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Tianwei Xiong

3 accepted papers

2026

EVATok: Adaptive Length Video Tokenization for Efficient Visual Autoregressive Generation

CVPR 2026

Autoregressive (AR) video generative models rely on video tokenizers that compress pixels into discrete token sequences. The length of these token sequences is crucial for balancing reconstruction quality against downstream generation computational cost. Traditional video tokenizers apply a uniform

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2025

GigaTok: Scaling Visual Tokenizers to 3 Billion Parameters for Autoregressive Image Generation

ICCV 2025poster

In autoregressive (AR) image generation, visual tokenizers compress images into compact discrete latent tokens, enabling efficient training of downstream autoregressive models for visual generation via next-token prediction. While scaling visual tokenizers improves image reconstruction quality, it o…

2024

LVD-2M: A Long-take Video Dataset with Temporally Dense Captions

NeurIPS 2024poster

The efficacy of video generation models heavily depends on the quality of their training datasets. Most previous video generation models are trained on short video clips, while recently there has been increasing interest in training long video generation models directly on longer videos. However, th…