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Complexity descriptor

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Mon Jan 8 18:56:06 EST 1996

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>To:	neur-sci at net.bio.net
>From:	kramer at rullf2.MedFac.LeidenUniv.NL (C Kramer)
>Subject: Complexity descriptor
>Date:	Mon, 8 Jan 1996 09:45:49 -0300
>Message-ID: <4cr3lt$kpq at highway.leidenuniv.nl>
>Reply-To: kramer at rullf2.MedFac.LeidenUniv.NL
>NNTP-Posting-Host: rullf2.medfac.leidenuniv.nl
>Dear reader,
>I am searching for information about describing the complexity or
>roughness of surfaces. The surfaces I work with are mapped outputs
>of calculated parameters from neuromuscular signals measured in a 
>grid of points at the skin-surface above the muscle of interest.
>The output looks like a kind of reliefmap. Describing this maps in
>one or a few numbers is necessary in order to compare them. First
>order descriptors as mean heigth and mean slopes in both grid 
>coordinate directions are useful but not enough, because loss of
>distributional information. The complex shapes of relief in the
>maps has to be reflected in a descriptor.
>I think this kind of a problem may be familiar in your institute
>somewhere too. I will be grateful if in any way someone can help 
>me .
>Cor G.S. Kramer, dept. Clinical Neurophysiology
>University Hospital Leiden, the Netherlands.
>e-mail : Kramer @ rullf2.leidenuniv.nl
>tel. : ..31-(0)71-5262194
           Dear netter Kramer:   The subject certainly requires high mathematics (or, for most clinicians, specialized technical help).  Just recently, there was a most interesting applicable exchange in  <bio-info at net.bio.net>.  You can retrieve it by the Biosci at net helper; see its FAQ for retrieval instructions.  The mails you can begin to read under the name of netter Don Foster <SproutsRad at aol.com>.    I advice you to ponder upon the posted abstract of Catherine Macken, of Los Alamos Natl. Lab., New Mexico, on "Evolution of Rugged Landscapes". Then perhaps you can ask her or Don for mathematical implementation.  I hope that (and shall be curious about how) these new tools fare to your purposes.     
       Prof. Mariela Szirko,
       <postmaster at neubio.sld.ar> 
       Centro de Investig. Neurobiologicas, Ministry of
Health & Welfare, Argentine Republic; and 
       Lab. of Electroneurobiological Res., 
Hospital "Dr. Jose Tiburcio Borda", Municipality of Buenos Aires,
       Office:  Phone/Fax (54 1) 306 -7314
                e-mail <postmaster at neubio.gov.ar>
       Standard disclaimer: Las opiniones de este mensaje son
personales y no comprometen las dependencias a cargo de la firmante
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