3 ms·
Where do they get their ground truth from? They show a lake near me which no longer exists, as of a few years ago when the dam was removed. (OSM gets this rig
by lupusreal 2y ago
Where do they get their ground truth from? They show a lake near me which no longer exists, as of a few years ago when the dam was removed.
(OSM gets this right, FWIW.)
- eppp 2y agoLidar and some sort of algorithm probably. It seems to work ok but not perfectly and depending on your area the lidar point cloud could be almost 10 years old.