alt Hacker NewsI haven't visited the map, but I wouldn't be surprised to learn they didn't attempt to re-create the building shapes, just location and estimated size. The real shape seems pointless for this dataset.
I haven't visited the map, but I wouldn't be surprised to learn they didn't attempt to re-create the building shapes, just location and estimated size. The real shape seems pointless for this dataset.
Building shapes are actually pretty accurate in urban areas. I haven't read the paper, but I think what they were after is building volume. Which obviously requires the footprint shape and height