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One good site
MDN
Nelson Minar
Blog licensed under a Creative Commons License
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There's a
terrific article
in today's SFChron about counting the crowd at last week's peace
protest, including a
detailed
description of the counting method and links to download 10 megs of high
resolution photos.
Air Flight Service, a company that specializes in high-resolution
aerial photography, produced 9-by-9-inch black and white negatives ...
[they] then applied a grid pattern to the prints to provide units in which
the marchers could be counted.
What I love about this is how simple and low-tech the method is. They took
pictures. They counted the people in the pictures. We've been doing
this kind of thing since at least World War II. Why has it been so difficult
to do this for political actions?
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