On Mon, Jun 17, 2013 at 2:00 PM, Marcus G. Daniels <[email protected]>
 wrote:

> On 6/17/13 1:48 PM, Roger Critchlow wrote:
>
> Seems like it should be a standard cell phone camera surveying application
> to compute the angular altitude of an object above the horizon and the
> range of possible linear altitudes given the range of visible distances
> along the azimuth.
>
>    Wouldn't it be necessary in general to do Photosynth and/or have a
calibrated fisheye lens?

Why?  Point the camera at the object in question, if you can get an
accurate pose for the camera plane, then the rest is classical surveying
geometry and classical optics.  Getting a full panoramic image doesn't
locate the object of interest any better, just all the objects of
non-interest.

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