This paper presents a novel approach to the Extreme Structure from Motion
(E-SfM) problem, which takes a set of room layouts as polygonal curves in the
top-down view, and aligns the room layout pieces by estimating their 2D
translations and rotations, akin to solving the jigsaw puzzle of room layouts.
The biggest discovery and surprise of the paper is that the simple use of a
Diffusion Model solves this challenging registration problem as a conditional
generation process. The paper presents a new dataset of room layouts and
floorplans for 98,780 houses. The qualitative and quantitative evaluations
demonstrate that the proposed approach outperforms the competing methods by
significant margins.

本文提出了一种新颖的方法来解决 “极端结构运动” 问题，通过估计 2D 平移和旋转来对齐房间布局，解决仿佛房间布局拼图的问题，并使用扩散模型解决了具有挑战性的注册问题。该论文还提出了一个新的数据集，用于 98,780 幢房屋的房间布局和平面图，并经定量和定性评估证明，所提出的方法表现出比竞争方法更好的性能。