Description: MS building footprint polygons - 2022***** See original source download and supplemental Information for details on data creation by Microsoft.https://github.com/Microsoft/USBuildingFootprintsMicrosoft explaination: “The gap areas contain image tiles taken with different cameras, which is causing the creation of artificial edges between neighboring tiles. These confuse our detection network which hasn't learned to deal with them.We took a very conservative approach of skipping such tiles. I think we could add additional effort in order to properly deal with this problem.”