SceneAligner: 3D-Grounded Floorplan Localization in the Wild

Researchers introduced SceneAligner, a new method for floorplan localization using reconstructed 3D scenes.

It converts the 3D scene into a 2D density map and matches it to rasterized floorplans with learned cross-modal alignment.

The approach improves indoor localization in unconstrained real-world buildings and works with sparse input images.

By handling limited data and cross-modal correspondence, it addresses key limits of earlier floorplan-based methods.