When I need to map well buildings in a residential area I use in addition to
satellite images the oblique low altitude aerial photos. Here are examples of
such images, which I produced with the Phantom quad:
https://en.m.wikipedia.org/wiki/File:Bout-du-Monde-aerial-7.jpg
https://commons.m.wikimedia.org/wiki/Category:Tavria_B#/media/File%3AAltairovskiy-3.jpg
https://commons.m.wikimedia.org/wiki/Category:Bremgartenfriedhof?uselang=de#/media/File%3ABremgartenfriedhof-aerial-1.jpg
Such data fusion provides better understanding of an area. We can see not only
buildings' roofs from above, but also what these buildings are, their height,
etc.
An aerial image covers much larger surface than a "street-view" style image. So
no need to store millions of photos for a town, as a dozen or two of 4K aerial
images would give a good general idea of a place.
The RPAS are becoming lighter (the new DJI Spark is only 300 g), safer,
cheaper, with better cameras.
I found so far only one practical way to connect the oblique low altitude
aerial photos to the main stream OSM map, - it is via Wikimedia Commons
(Wikidata). If you have an idea regarding this field, please, let me know.
Best regards,
Oleksiy
Sent from my acer Liquid Z630
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