I'm not sure if this link has been posted before, but for those wondering how Google got their new buildings, there is a link at PC Magazine http://www.pcmag.com/article2/0,2817,2411232,00.asp. Apparently they recently uploaded 25M buildings done through an automated image recognition software.
I've manually added most of the buildings in the city of Gilroy ( http://tools.geofabrik.de/mc/?lon=-121.56369&lat=37.00553&zoom=17) so I was curious to find out where they got their data from. I thought maybe the city or county had a secret source that I hadn't found. And I checked everywhere I could to find buildings that could have been imported. I was wondering if OSM could do the same thing. Could we buy as a group a program like Feature Analyst, eCognition or Imagine Objective and add buildings that way? We could combine the buildings with any existing address points available. I checked into it earlier this year and one program was about $2,000. But the money could be quickly raised. I know I would be willing to donate.
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