[OSM-talk] protocol for adding buildings using aerial imagery?

[Stephen Hope]

On 28 December 2010 23:51,  <john at jfeldredge.com> wrote:
> Trying to estimate building height via the perspective in aerial pictures will be tricky, as buildings that were closer to the flight path won't show as much parallax as those that were farther away.

It will be even trickier if you are using imagery that has been
morphed using radar height data to try and correct it's horizontal
offsets from angled shots.

Stephen