Thanks. I must confess to my usual confusion/ignorance here - but perhaps I
should really have talked of "solid" rather than "3-D mapping."
When you sit in a familiar chair, you have, I presume, a solid mapping (or
perhaps the word should be "moulding") - distributed over your body, of how
it can and will fit into that chair. And I'm presuming that the maps in the
brain may have a similar solid structure. And when you're in a familiar
room, you may also have brain maps [or "moulds"] that tell you automatically
what is likely to be in front of you, at back, and on each side.
Does your sense of "3-D mapping" equate to this?
Bob/JAR.. MT:>>> What are the implications for computing - how would it have
to
change - if
the brain uses literal 3D maps - and they turn out to be a necessity?
[Computers, I take it, can't currently produce them?]
2D mapping has been achievable for a while, but 3D mapping is a fairly
recent phenomena because it's not until recent years that enough
processing power has been available to handle this kind of task in
anything like real time. To a large extent the DARPA urban challenge
was all about 3D mapping and the accompanying sensor technologies
needed to support it.
DARPA challenges are mostly 2.5D, which is a much simpler problem. On the
other hand, 3D mapping is pretty cheap if you have decent algorithms. The
sensors are dirt cheap, so it is mostly knowing what to do with the data
once you have it.
J. Andrew Rogers
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