arXiv Computer Vision By Ivan Listopadov, Maksim Nakhodnov, Aibek Alanov

Policy-Mask: Budget-Aware Adaptation of Diffusion Features to Discriminative Tasks

Read the original on arXiv Computer Vision →

Policy‑Mask is a budget‑aware policy that jointly selects a timestep, a diffusion block, and a subset of channels from a frozen diffusion model to optimize downstream discriminative tasks. By normalizing channel scores and training on the downstream objective, it outperforms fixed‑extraction baselines on segmentation, classification, and semantic correspondence, achieving state‑of‑the‑art results on ADE20K, CIFAR‑100, and SPair‑71k. The method also extends to diffusion transformers by mapping U‑Net channels to image‑token hidden dimensions.

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