Panorama activity

[Samuel Klein]

Ben, this post makes my day.  do we have a way of telling or
estimating the XO's swivel angle from hardware?

SJ

On 6/20/07, Eben Eliason <eben.eliason at gmail.com> wrote:
> I think this is truly fantastic.  It's the perfect example of leveraging the
> technology in previously unthought of ways.  In my mind this makes perfect
> sense within the Capture activity (which, for the record, we're referring to
> as "Record" this week).  I'm also fairly impressed by the output of the
> simple algorithm, and think it's perfectly suitable for use on the XO.
>
> Erik, let me know your thoughts on incorporating this.  I can mock up some
> designs for the step-by-step procedure.  Ben, what's the viewing angle of
> the camera?  Is 6 shots sufficient?
>
> - Eben
>
>
> On 6/20/07, Benjamin M. Schwartz < bmschwar at fas.harvard.edu> wrote:
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> > The XO happens to be perfect for shooting stitched panoramic photographs,
> due to
> > the swivel design.  I tested it out in the OLPCHQ lobby. Then, I wrote a
> simple
> > panorama stitcher in 50 lines of Python.  It runs in 3.4 seconds on my
> Core Duo,
> > producing this output:
> >
> > http://people.fas.harvard.edu/~bmschwar/lobby_ugly.jpg
> >
> > The results aren't too bad.  I also tried stitching this scene with Hugin,
> the
> > most powerful panorama stitcher I know of.  Hugin required significant
> user
> > intervention and half an hour of computing time, producing this output:
> >
> > http://people.fas.harvard.edu/~bmschwar/lobby_pretty.jpg
> >
> > This scene is unusually difficult because of the huge indoor-outdoor
> contrast.
> > Given this positive result, I would like to work on a panorama-making
> activity,
> > possibly inside Capture.  I know that at age 10, I loved making panoramas
> out of
> > photographs.  Panoramas provide an immersive way for children to
> communicate
> > their environments to each other and to the world.
> >
> > - --Ben Schwartz
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