There are some prior work that can digitize (vectorize) floorplans: https://github.com/art-programmer/FloorplanTransformation https://github.com/art-programmer/

There are some prior work that can digitize (vectorize) floorplans: https://github.com/art-programmer/FloorplanTransformation https://github.com/art-programmer/FloorplanTransformation. This can detect rooms as polygons, doors/windows as line segments and bounding boxes around objects (e.g. cabinets, sinks etc. indicated on floorplans).