3 papers
cs.CV2026
World-R1: Reinforcing 3D Constraints for Text-to-Video Generation
Weijie Wang, Xiaoxuan He, Youping Gu +9
Recent video foundation models demonstrate impressive visual synthesis but frequently suffer from geometric inconsistencies. While existing methods attempt to inject 3D priors via…
cs.CV2025
PSA: Pyramid Sparse Attention for Efficient Video Understanding and Generation
Xiaolong Li, Youping Gu, Xi Lin +2
Attention mechanisms are the core of foundation models, but their quadratic complexity remains a critical bottleneck for scaling. This challenge has driven the development of effic…
cs.CV2025
BLADE: Block-Sparse Attention Meets Step Distillation for Efficient Video Generation
Youping Gu, Xiaolong Li, Yuhao Hu +2
Diffusion Transformers currently lead the field in high-quality video generation, but their slow iterative denoising process and prohibitive quadratic attention costs for long sequ…