Generating the parts of an object
+
“square”
• One way to maintain the
constraints between the parts is
to generate each part very
accurately
– But this would require a lot of
communication bandwidth.
• Sloppy top-down specification of
the parts is less demanding
– but it messes up relationships
between features
– so use redundant features
and use lateral interactions to
clean up the mess.
• Each transformed feature helps
to locate the others
– This allows a noisy channel
pose parameters
sloppy  top-down
activation of parts
features with
top-down
support
clean-up using
known interactions
Its like soldiers on
a parade ground