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Q: Internal representations of visual objects

Dibyendu Nandy dnandy at hezi.eecs.uic.edu
Wed Apr 23 16:38:18 EST 1997


Hi,

I am interested in pointers towards neuroscience literature in
higher levels of visual processing. Specifically, the internal
representations of 3-D objects.

This question is motivated by abilities like mental rotation 
and pose invariant object recognition. I am interested in modeling 
the acquisition and formation of such representations. While there 
is evidence and modeling efforts both in psychology and computer 
vision literature that support either iconic or 3D representations, 
I was wondering if there are reports of measurements in the inferotemporal
cortex (IT) (an area known to be responsible for object recognition),
that support the view of internal 3D representations.

For instance this could be a record of if and how neuron firing rates change
when an object is rotated or another view of an object is presented
and recognized, or when a mental rotation is imagined by the subject.

The closest literature I have come across is that by Tanaka Keiji
"Neuronal Mechanisms of Object Recognition", in Science V 262, pp. 685-688 
He has several other related publications in Science.

I was also informed that George Opolus (spelling??) may have done
some work in the area. I am not sure of the author's name and
I could not find literature under the name and several variants.
I would appreciate it, if somebody  who has knowledge of the
correct name, can let me know.

My question may seem somewhat naive, specially due my lack of familiarity 
with neuroscience and the extent of functional brain mapping that
is already available. Any pointers to appropriate literature will
be appreciated.


Thanks
Dibyendu
-- 
Computer Vision & Neural Networks
Signal/Image Research Laboratory                   *     *
Elect. Eng. & Comp. Sc.               ***         ***   ***      ***
The University of Illinois at Chicago*****        ***   ***    ******



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