> There exists technology that will match photos based on their
> content...  I seem to recall some sort of 'fuzzy checksum' type
> methodology somewhere.   It looks like 'image comparison' on google
> reveals some interesting hits.

That would be good BUT I have in some cases got many very similar photos. eg 
I got up at 5:30 to walk up to the the Long Ji rice terraces before sunrise, 
took many hundreds of photos, walked back down and had breakfast with my 
wife and then we went up again and i took hundreds more :-).  I suspect that 
image matching software would be hard put to separate that lot out ;-).

> I also remember watching a presentation on one of the Dish Network
> research channels about some researchers doing some really cool stuff
> where they'd take photos from flikr which were tagged with a given
> location, and it would build a 3d model of the site, and automatically
> figure out where the picture was taken... I guess not applicable to your
> application, but seriously cool that they figured out how to take a
> whole pile of images and stich them together automatically to build the
> 3d model.

The 3D site builder would have a ball though. I stupidly did not GPS log the 
location and have not been able to locate it with certainty on Google 
Earth - resolution in that area is too low.



Russell

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