DaTaobao Tech

Jul 3, 2026 · Artificial Intelligence

LocalDPO: A CVPR 2026 Method for Fine‑Grained Preference Optimization in Video Diffusion Models

LocalDPO introduces a zero‑annotation, region‑aware DPO framework that uses high‑quality real videos as positive samples and automatically generated locally degraded negatives to align video diffusion models with human preferences, achieving significant gains in visual quality, temporal consistency, and subjective ratings on CogVideoX and Wan2.1.