This paper presents a novel algorithm that utilizes a 2D floorplan to align
panorama RGBD scans. While effective panorama RGBD alignment techniques exist,
such a system requires extremely dense RGBD image sampling. Our approach can
significantly reduce the number of necessary scans with the aid of a floorplan
image. We formulate a novel Markov Random Field inference problem as a scan
placement over the floorplan, as opposed to the conventional scan-to-scan
alignment. The technical contributions lie in multi-modal image correspondence
cues (between scans and schematic floorplan) as well as a novel coverage
potential avoiding an inherent stacking bias. The proposed approach has been
evaluated on five challenging large indoor spaces. To the best of our
knowledge, we present the first effective system that utilizes a 2D floorplan
image for building-scale 3D pointcloud alignment. The source code and the data
will be shared with the community to further enhance indoor mapping research.

该文提出了一种新算法，利用 2D 平面图对全景 RGBD 扫描进行校准，该算法可以大幅减少所需扫描数，并在五个大型室内空间上进行了评估。这是第一个利用 2D 平面图进行大型室内三维点云重建的有效系统，提出的算法使用多模态图像对应线索 (在扫描和平面图之间)，并避免了固有的堆叠偏差