[FoRK] question for you guys

Gary Stock gstock at nexcerpt.com
Sat Jun 25 06:22:18 PDT 2011

Duh!  CD or DVD -- or any visibly branded Lifesaver candy...


On 6/25/11 9:10 AM, Gary Stock wrote:
> I wonder whether a United States dollar bill might be sufficiently 
> "common" -- if not counterfeited.
> Any chance the top (or at least the diameter of the rim) of a Coca 
> Cola can is identical everywhere?
> That's a more ubiquitous object than credit cards or paper -- at 
> least, in the middle of nowhere ;-)
> Beyond that, can the transmission of these vital photos wait until a 
> cloudless day with a full moon?
> You won't always have smoked glass to use, so the diameter of the Sun, 
> though stable, is problematic.
> But, the reference object must be in the same location/plane (possibly 
> parallax-corrected)... right?
> GS
> On 6/25/11 7:37 AM, Damien Morton wrote:
>> You are in the middle of nowhere, in any country in the world, but 
>> not so
>> remote that you dont have internet.
>> You want to send photos of a large, flat object to a service which 
>> will then
>> measure that object.
>> To measure the object accurately, there need to be some rectangular or
>> circular reference objects of known size in the photos.
>> Ideally some coded photogrammetry targets should be printed and used.
>> If you dont have a printer, then A4 or US Letter paper sheets can be 
>> used.
>> These are pretty much the ideal size.
>> No paper, then credit cards can be used. Smaller than ideal, a 
>> problems with
>> the printing on them, but usable.
>> Can anyone think of any other common flat rectangular or circular 
>> objects
>> that have standardised sizes globally?
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