<div dir="ltr">Marc, I think you might be thinking of SK53's work. I think he wrote several posts about how lidar can help identify buildings, e.g. here: <a href="http://sk53-osm.blogspot.be/2016/05/bristol-new-brighton-buildings-from.html">http://sk53-osm.blogspot.be/2016/05/bristol-new-brighton-buildings-from.html</a><div><br></div><div>There is quite a bit of lidar altitude data available for Flanders, both raw and processed. The 3D GRB for example was based on that data. See:</div><div><a href="http://www.geopunt.be/catalogus/search?facet=catalog&q=lidar">http://www.geopunt.be/catalogus/search?facet=catalog&q=lidar</a><br></div><div><br></div><div>Building heights do have a wiki page: <a href="https://wiki.openstreetmap.org/wiki/Key:height#Height_of_buildings">https://wiki.openstreetmap.org/wiki/Key:height#Height_of_buildings</a></div><div>But then a rule of thumb is we don't map that which can easily be automatically generated, so I don't really see the point of using something like 3D GRB for OSM.</div><div><br></div><div>An interesting thing about raw lidar data is that it can help identify trees, as they have a special kind of pattern in the data. So you could use processed data to identify potentially missing landuse=forest / tree rows / trees.</div><div><br></div><div class="gmail_extra">-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Joost Schouppe<br></div></div></div></div></div>
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