I do not think that in ten years automated image recognition will be
capable to map buildings correctly. I remember that still in 70s I read
that computer translation will replace human translators. However, half
a century later it is still humans who translate texts, though with the
assistance of specialized computer programs.
Sometimes I myself cannot recognize on a satellite image what kind of
building it is, - a warehouse, a cowshed, a factory, etc., or how many
levels it has got. I have to look at its shadow, surroundings, roof
surface, to make a guess. I wish in future it would be possible to
switch in an editor from the satellite imagery to the aerial low
altitude oblique image to see a building from a different angle.
I do some experiments in this field. For example, recently I filmed this
historical fort
https://www.openstreetmap.org/relation/5807132#map=18/46.50897/6.07790
from the air at low altitude from different angles. These aerial images
can be accessed from the map in two clicks at the fort's commons category:
https://commons.wikimedia.org/wiki/Category:Fort_du_Risoux
If in future the cost of SSDs capacity drops further, perhaps it would
be possible to store such oblique aerial images at the map (and editor)
itself as an addition to the major satellite imagery. And then it will
be obvious and indisputable at what kind of structure we are looking
vertically from the space. One such 4K aerial image covers at least 4
hectares (the approximate area of this fort).
With best regards,
Oleksiy
On 7/4/2018 10:16 AM, Jean-Marc Liotier wrote:
...
I am convinced that the immense majority of those buildings will never be
corrected. In ten years, we can expect massive campaigns of automated
image recognition to produce new building layers - but even then the
extensive conflation will be an horribly tedious job.
...
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