General 3D Room Layout from a Single View by Render-and-Compare

We present a novel method to reconstruct the 3D layout of a room -- walls,floors, ceilings -- from a single perspective view, even for the case of general configurations. This input view can consist of a color image only, but considering a depth map will result in a more accurate reconstruction. Our approach is based on solving a constrained discrete optimization problem, which selects the polygons which are part of the layout from a large set of potential polygons. In order to deal with occlusions between components of the layout, which is a problem ignored by previous works, we introduce an analysis-by-synthesis method to iteratively refine the 3D layout estimate. To the best of our knowledge, our method is the first that can estimate a layout in such general conditions from a single view. We additionally introduce a new annotation dataset made of 91 images from the ScanNet dataset and several metrics, in order to evaluate our results quantitatively.