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 <[EMAIL PROTECTED]> 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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