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

2010-12-28 Thread Milo van der Linden
It would be interesting to have editor support for estimating the building height depending on that displacement, or depending on the extent of the shadow - that would have to be calibrated for each imagery and location of course but so does the displacement of the whole image, and we're

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

2010-12-28 Thread Milo van der Linden
note to self: take course to learn how to be funny in english. 2010/12/28 Steve Bennett stevag...@gmail.com: On Tue, Dec 28, 2010 at 7:49 PM, Milo van der Linden m...@dogodigi.net wrote: The first person that automates tracing buildings from yahoo images on Aruba will be slapped by me!

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

2010-12-28 Thread Anthony
On Tue, Dec 28, 2010 at 3:59 AM, Milo van der Linden m...@dogodigi.net wrote: It would be interesting to have editor support for estimating the building height depending on that displacement, or depending on the extent of the shadow - that would have to be calibrated for each imagery and

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

2010-12-28 Thread Anthony
On Tue, Dec 28, 2010 at 7:54 AM, Anthony o...@inbox.org wrote: On Tue, Dec 28, 2010 at 3:59 AM, Milo van der Linden m...@dogodigi.net wrote: It would be interesting to have editor support for estimating the building height depending on that displacement, or depending on the extent of the

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

2010-12-28 Thread john
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. ---Original Email--- Subject :Re: [OSM-talk] protocol for adding buildings using aerial

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

2010-12-28 Thread Stephen Hope
On 28 December 2010 23:51, j...@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

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

2010-12-27 Thread Erin Korris
Hello: I am wondering if there is a rule to follow when tracing buildings using aerial imagery. On the default, Yahoo imagery, the buildings are slightly displaced so in addition to the roof you can see the foundation of certain sides of the building. Should this be ignored and the building

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

2010-12-27 Thread Phil! Gold
* Erin Korris ekor...@yahoo.com [2010-12-27 16:02 -0800]: I am wondering if there is a rule to follow when tracing buildings using aerial imagery. On the default, Yahoo imagery, the buildings are slightly displaced so in addition to the roof you can see the foundation of certain sides of

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

2010-12-27 Thread charlie
Erin Korris (ekor...@yahoo.com) wrote: Hello: I am wondering if there is a rule to follow when tracing buildings using aerial imagery. On the default, Yahoo imagery, the buildings are slightly displaced so in addition to the roof you can see the foundation of certain sides of the