Fangtai Wu

MetaFusion: Instance-Aware Meta-Prompting and Token Refinement for VLMs Generalization

Rethinking Classifier-Free Guidance in On-Policy Diffusion Distillation

Positive--Direction Matching (PDM), a branch-aware OPD objective that separately constrains the positive prediction and the CFG conditional direction, is introduced to dense-to-sparse video control, where naive guided matching is highly sensitive to inference guidance scales, while branch-aware supervision enables more...

EDITBRIDGE: Towards Faithful and Efficient Ultra-High-Resolution Image Editing

This work proposes EditBridge, a diffusion bridge framework for efficient ultra high-resolution editing that achieves high-fidelity editing with superior perceptual quality at resolutions up to 4K, delivering 3.6--8.4$\times$ speedup at 2K and enabling practical 4K editing in 61 seconds.