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Enhancing Photogrammetric Digital Surface Models with Pretrained Diffusion Models and Multimodal Conditioning
The authors adapt Stable Diffusion 3 with a pruned text stream and patch‑wise normalization to condition on photogrammetric DSMs and Pléiades imagery, refining elevation maps. In French city tests the method halves RMSE, reaching 3.45 m in‑context and 2.77 m on a held‑out city.
Hugging Face Daily Papersarxiv.org1 minpaper