[From: Bruce Nevin (Fri 921002 13:14:03)]
I'm back from my month's field trip among the Indians, jet-lagged, and
with much to catch up on. The following of possible interest was
forwarded to me from the MIT AI list.
···
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WHY DO WE SEE THREE-DIMENSIONAL OBJECTS?
Thomas Marill
October 1, 1992
4pm
8th floor playroom
Abstract
When we look at certain line-drawings, we see three-dimensional objects.
The question is why; why not just see two-dimensional images?
In this talk we explore the theory that we see objects rather than
images because the objects are, in a certain mathematical sense, less
complex than the images.
However, there are infinitely many objects that project to any drawing.
As a result, a second question arises: Given that we are going to see an
object when we look at a drawing, which one will it be?
The theory under discussion holds that the object selected by the vision
system will be the least complex of the available alternatives.
Experimental data supporting the theory will be reported.
This work is based on the pioneering ideas of Solomonoff and Kolmogorov,
and on the more recent ``minimum description length'' concept of
Rissanen.
****Revolving Seminar****Revolving Seminar****Revolving Seminar****
The schedule for the rest of the semester:
Oct. 8: Bart Selman
Oct. 14: David Liddle
Oct. 22: open
Oct. 29: Eric Sven Ristad
Nov. 5, 12, 19: open
Dec. 3: Brian Subirana
Dec. 10: Andrew W. Moore
If you are interested in giving a talk send email to mdlm@ai.mit.edu.
The Revolving Seminar has a small budget for reimbursing the travel
expenses of senior researchers. If you are interested in a particular
speaker, please let us know. We are particularly interested in
inviting people who espouse views that are not widely represented
within the lab.
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