On Wednesday 13 August 2014, John Sturdy wrote: > Announced in typical Register style: > http://www.theregister.co.uk/2014/08/13/creepy_satellites_will_be_abl >e_to_zoom_in_on_your_face/
Mapbox has some more detailed explanations: https://www.mapbox.com/blog/worldview-3-launch/ including an positional accuracy number (3.5 meter) which is of course just a claim at the moment and is likely for points exactly in nadir position. Note the resolution number is a bit like the Megapixels in digital cameras, it does not say much about the actual ability to resolve details although in case of earth observation satellites pushing the nominal resolution much beyond the optical resolution abilities makes much less sense since it is very costly. In contrast to what the register article seems to imply these high resolution satellites are not systematically mapping the whole planet, they generally take images on demand for customers. Practically it will probably mean that in the long term more up-to-date imagery will become available but mostly in areas where there generally are already less up-to-date high resolution aerial images. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
