How Many Categories Can you Recognize?

Tuesday, March 7, 2006 - 9:00am - 10:00am
EE/CS 3-180
Pietro Perona (California Institute of Technology)
How many categories can you recognize? Currently the best
estimate is due to Irv Biederman: 3000 entry-level categories and
perhaps 3*104 categories overall. This estimate was obtained
indirectly, by counting words in a dictionary. I will present a method
to obtain a direct estimate. Alongside the estimate one gets
frequencies of objects and categories for free. I will discuss the
implications for visual recognition and other visual problems.
MSC Code: