stevefaeembra
trying to identify trees in Edinburgh
Using open lidar data dem/dsm at 2m resolution to try to identify trees in edinburgh, using standard QGIS tools. Used os open data to mask out buffered building outlines (crown copyright and database rights 2016)
lots of false positives (probably down to out-of-date building outlines.. should try again with more recent OS data and OSM). results look promising, though.
trees are taken to be objects between 7 and 15 meters high which don't overlap part of a known building.
trying to identify trees in Edinburgh
Using open lidar data dem/dsm at 2m resolution to try to identify trees in edinburgh, using standard QGIS tools. Used os open data to mask out buffered building outlines (crown copyright and database rights 2016)
lots of false positives (probably down to out-of-date building outlines.. should try again with more recent OS data and OSM). results look promising, though.
trees are taken to be objects between 7 and 15 meters high which don't overlap part of a known building.