Training-Free Rate-Distortion-Perception Traversal With Diffusion
Researchers have developed a novel training-free framework that utilizes pre-trained diffusion models to navigate the rate-distortion-perception (RDP) tradeoff in lossy compression. This approach integrates a reverse channel coding module with a unique score-scaled probability flow ODE decoder. The framework theoretically achieves optimal RDP functions in Gaussian cases and empirically demonstrates flexibility in adapting to different compression needs using existing diffusion models. AI
IMPACT Enables adaptive, perception-aware compression by leveraging pre-trained diffusion models without retraining.