Roomer repairs 3D indoor layouts with object-grounded local edits
cn-scut · hf · 2026-08-04
Roomer repairs indoor layouts by local, object-grounded edits
The paper presents Roomer, a reflective repair framework for 3D indoor layout synthesis. It targets common residual violations in generated layouts—collisions, out-of-bounds objects, blocked openings, and blocked circulation—by treating them as sparse, object-grounded repair problems.
How it works
- Layouts are encoded as RoState.
- RoReview links measured violations to the specific objects responsible.
- A geometry-conditioned vision-language planner proposes structured local edits.
- A deterministic solver validates edits and can generate a finite set of candidates.
- A candidate is committed only if full-scene verification confirms it fixes the target issue without introducing new hard violations or breaking protected constraints.
Training and evaluation
- The authors train the planner on Roomer-CC, a controlled-corruption dataset pairing faulty layouts with evidence and feasible inverse patches.
- They also introduce Roomer-Eval, which checks distributional quality, physical validity, and practical usability.
Results
Roomer improves physical validity and usability, repairs residual violations while preserving valid regions, and transfers to external layout generators.
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