Newsgroups: comp.ai.neural-nets
Path: utzoo!censor!geac!maccs!nimios!ukrainec
From: ukrainec@nimios.eng.mcmaster.ca (Andy Ukrainec)
Subject: Re: Please help: unoriented spatial kernel; Motion OC
Message-ID: <1991Feb6.230655.8479@maccs.dcss.mcmaster.ca>
Organization: Communications Research Laboratory
References: <3701.27afbe0e@miavx1.acs.muohio.edu>

>        I am a student at Miami University (in Ohio!), and I'm trying to
>program a C implementation of the Motion OC filter described by Grossberg
>and Rudd in _NN_, Nov. 1989.  There is a term in Equation 6 that I don't
>understand; it is F[j,i], "where F[j,i] is an unoriented spatial kernel."

I'm not sure of the specifics, but "unoriented spatial kernel" I would
guess to mean something like a circular Gaussian function, where the
covariance matrix is

			\sigma^2 I

where I is the identity matrix.  Take a look in some vision books.  They
discuss oriented spatial kernels which are convolved with an image.
Don't know if this helps, but here it is anyway.
-- 
 =====================================------===================================
[|         Andrew Ukrainec            |    |   ukrainec@sscvax.mcmaster.ca    |]
 |           <  (*)    >              |====|           < (*)     >            |
  \Communications Research Laboratory/      \McMaster Univ, Hamilton, Ontario/