[OSGeo-Discuss] Finding position based on horizon profile?

Michael P. Gerlek mpg at flaxen.com
Mon Mar 28 14:27:13 PDT 2011

Well, yes, I did do that first and have some angles on the more conventional
aspects of this, e.g. missile guidance.  Being new to this area, though, I
thought I'd put out a query to see what else might turn up in the open
source realm (pure R&D being one thing; hackable code is something quite
different sometimes).

[that said, sometimes it's hard to even frame the right questions when one
is in a brand new area..]


> -----Original Message-----
> From: Stephen Woodbridge [mailto:woodbri at swoodbridge.com]
> Sent: Monday, March 28, 2011 2:16 PM
> To: mpg at flaxen.com; OSGeo Discussions
> Subject: Re: [OSGeo-Discuss] Finding position based on horizon profile?
> On 3/28/2011 4:48 PM, Michael P. Gerlek wrote:
> > Consider the following hypothetical problem:
> >
> > Assume we have a good elevation data set for a large region of the
> > earth -- say, an entire mountain range.  Now let's say we have a
> > photograph taken from the ground, the horizon of which shows the
> > profile of a couple of the mountains in that range.  Can you tell me
> > where the photograph was taken from?
> >
> > Any pointers to research in this area would be appreciated.
> Micheal,
> Does this help?
> http://www.google.com/#q=matching++"terrain+profile"
> -Steve

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