How humans identify a group of people?



Folks,
I'm stuck in a so called scientific problem known
as anit-collision (When multiple RFID [Radio Frequency Identifier] tags
or labels are exposed to reader [reader: A device which can reads
individual tag with unique identity] ).
There are plenty of solutions with standardization available out there
but they all face more or less same degradation problem.

Now what I want you from you folks is what can be the *More Human*
solution for that, think about that when you come to see a group of
people (That you already know) in a glimpse; how are you gonna react or
say how human mind will identify all of them?

To me if I come to see all my friends at once then there will be no
problem to identify any one of them, how we can make machines to do
that? There should be some thing to work upon;-)

Allow me to put my question in few words, how humans identify a group
of people?


I know that this NG is not f* technology group rather it is about films
and art thats why i'm sure i'll get some real *human* ideas.

Thanks for your time,
ali

.



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