Preprint Open access
REACT: Rolling Denoising and Dual Decoupling for Reactive Robot Control with VLA Models
Flow-based vision-language-action (VLA) models generate action chunks for temporally coherent robot motion, but chunked control creates a fundamental closed-loop trade-off: long chunks provide smooth execution, whereas frequent replanning improves reactivity at the cost of action discontinuities. We introduce REACT, a …