Specialists of "Sovzond", Ph.D., Dmitry Nikolsky spoke in detail about how detailed satellite images are used to update maps and demonstrated it with concrete examples. He noted in particular that, in mobile applications, users often prefer to satellite images of cartographic images, due to the fact that they have greater clarity.
Watch the film: http://www.youtube.com/watch?v=bQCyTVhy4AA
http://sovzond.ru/