FlatLands: Generative Floormap Completion From a Single Egocentric View

arXiv:2603.16016 · cs.CV, cs.AI, cs.RO, eess.IV · Submitted 2026-03-16 · Read on arXiv

cs.CV, cs.AI, cs.RO, eess.IV

Submitted: 2026-03-16

Updated: 2026-09-02

Comments: Under Review

Code: https://github.com/1ssb/Flat_Lands

License: http://creativecommons.org/licenses/by/4.0/

The gist: A single egocentric image typically captures only a small portion of the floor, yet a complete metric traversability map of the surroundings would better serve applications such as indoor navigation.

Terminology

Abstract

A single egocentric image typically captures only a small portion of the floor, yet a complete metric traversability map of the surroundings would better serve applications such as indoor navigation. We introduce FlatLands, a dataset and benchmark for single-view bird's-eye view (BEV) floor completion. The dataset contains 270,575 observations from 17,656 real metric indoor scenes drawn from six existing datasets, with aligned observation, visibility, validity, and ground-truth BEV maps, and the benchmark includes both in- and out-of-distribution evaluation protocols. We compare training-free approaches, deterministic models, ensembles, and stochastic generative models. Finally, we instantiate the task as an end-to-end monocular RGB-to-floormaps pipeline. FlatLands provides a rigorous testbed for uncertainty-aware indoor mapping and generative completion for embodied navigation.

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