Date: 12 Dec 91 10:07:26-PST
From: Vision-List moderator Phil Kahn <Vision-List-Request@ADS.COM>
Errors-to: Vision-List-Request@ADS.COM
Reply-to: Vision-List@ADS.COM
Subject: VISION-LIST digest 10.52
To: Vision-List@ADS.COM

VISION-LIST Digest    Thu Dec 12 10:07:26 PDT 91     Volume 10 : Issue 52

 - Send submissions to Vision-List@ADS.COM
 - Vision List Digest available via COMP.AI.VISION newsgroup
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   membership to Vision-List-Request@ADS.COM
 - Access Vision List Archives via anonymous ftp to ADS.COM

Today's Topics:

 IU constructs and environments
 Request for Realtime Image Processing Systems on Sun Stations
 Invariant pattern recognition with ANNs
 Hilbert transform
 One pass bandreject algorithm wanted
 Data compression hardware
 Pseudocolor algorithms
 Job Announcement
 Promising Directions in Active Vision
 OPTICOMP@TAUNIVM is now named OPT-PROC@TAUNIVM
 Japanese Artificial Intelligence Industry

----------------------------------------------------------------------

Date: Thu, 12 Dec 91 13:11:33 -0800
From: pkahn@ads.com (Philip Kahn)
Subject: IU constructs and environments

I am compiling a list of IU constructs and environments that are
CURRENTLY AVAILABLE.  Please respond to me (pkahn@ads.com) ASAP.

thanks,
phil...

------------------------------

Date: Wed, 11 Dec 91 08:58:36 +0100
From: ka%bsun7@ztivax.siemens.com (Ingolf Karls)
Subject: Request for Realtime Image Processing Systems on Sun Stations

Dear Colleagues:

We are planning the installation of a closed realtime image processing 
system which should meet the following requirements: 

1) connection to Sun SPARC environment via VMEbus or better Sbus
2) I/O capabilities like frame grabber utility for RGB, video input/output
3) addition of processing boards for scaling of processing performance is 
   possible
4) fast internal bus system (video rate)
5) flexibility through HLL or ASM programming of processing boards
6) integration in the SunOS 4.1 environment (X11R5 interface)

We have checked systems like DataCube and Wavetracer, does anybody know a multiprocessor system based on digital signal processors (TMS320C30, TMS320C40 for example) that is able for using as an image processing system ?

I will summarize all incoming information, thanks in advance.

Ingolf Karls                        |  Siemens AG
Image Processing Group              |  ZFE ST SN61
                                    |  Otto-Hahn-Ring 6 
email: ka%bsun3@ztivax.siemens.com  |  8000 Munich 83
phone: 089-636-49479                |
fax  : 089-636-2393                 |

------------------------------

Date: Thu, 05 Dec 1991 14:35:30 GMT
From: infko!evol@ads.com
Organization: University of Koblenz, Germany
Subject: Invariant pattern recognition with ANNs

I am interested in translation, rotation and scaleing invariant
pattern recognition with ANNs. I already know about Fokushima's
Neocognitron and Hubel & Wiesels work about the human visual cortex. I
also read some papers about complex logarithmic mapping and Fast
Fourier Transformation (H. Haken, H. J. Reitboeck & J. Altmann, H.
Wechsler & G. L. Zimmerman). Nevertheless this complex logarithmic
mapping seems to take place in the human visual cortex, I think it is
not sufficient for the task. Especially scaleing invariant recognition
is still a very hard problem.  Are there any additional related works
about scaleing invariant pattern recognition ?

        Thanks in advance
                Randolf Werner

Randolf Werner FB Informatik, Uni Koblenz,                    evol@infko.UUCP
Rheinau 3-4, D-5400 Koblenz, Germany         ...!uunet!mcsun!unido!infko!evol

------------------------------

Date: Tue, 3 Dec 91 14:14 GMT
From: GLYNN PETER ROBINSON <GROBINSON@portia.umds.lon.ac.uk>
Subject: Hilbert transform

Can anyone help me? I am trying to work out the Hilbert transform
of the 2nd derivative of the Gaussian. I want a symbolic solution
not a numerical approximation.

The Hilbert transform of a function is defined to be the convolution 
of the function with 1/x.

If g(x;s) is the Gaussian distribution of width s then its 2nd derivative
is g''(x;s)=(x^2/s^2-1)g(x;s)/(s^2).

If anyone can solve this for me or knows where the solution can be found
then I would be very interested.

                                        Yours,
                                                        Lewis Griffin
------------------------------

Date: Wed, 4 Dec 91 00:59 GMT
From: Roy <SN=Roy%GI=Rajiv%C=US%TI@mcimail.com>
Subject: One pass bandreject algorithm wanted

I am looking for a 3x3 or 5x5 operator that can do a bandreject
in one pass over a frame. Would appreciate any pointers or the kernel
itself.

I mean "essentially subtracting a bandpass from the original signal".
At the end of one frame, after the image goes through a 3x3 convoluter, I would
like to have an image that retains the DC component and the high frequency
component. I suspect, from Gonzalez and Wintz Pg 188, that one could perform
a Moore-Penrose generalized inverse on a radially symmetric Butterworth
bandreject filter (Pg 200) and arrive at the kernel. I do not quite follow
the logic on Pg 188 to do it.
 
Thanks for the follow up.
Regards, Rajiv        Rajiv.Roy%RROY@timsg.ti.com
 
------------------------------

Date: 4 Dec 91 17:02:08 GMT
From: Expressio Veri <chettri@udel.edu>
Organization: University of Delaware
Subject: Data compression hardware
Keywords: data compression hardware, neural nets, conventional techniques

Hello fellow netters:

I am interested in getting information on data compression hardware
(company, university etc), platforms on which it works, algorithms
implemented etc.

In addition, I would like to pointers in the literature regarding
neural nets and data compression.

If you feel that this is not important enough to flood the net with, 
please reply directly to me. 

Samir
(chettri@huey.udel.edu)

------------------------------

Date: Tue, 10 Dec 91 19:29:45 GMT
From: mulberry%triton.unm.edu@lynx.unm.edu ()
Organization: University of New Mexico, Albuquerque
Subject: Pseudocolor algorithms

Does anyone know of algorithms and/or software that does
pseudocoloring, false coloring, color enhancement, color to
black-and-white conversion, etc?

I need such for an IBM PC 286 compatible system.

Thanks.

Bill (mulberry@triton.unm.edu)
College of Pharmacy
University of New Mexico
Albuquerque, New Mexico

------------------------------

Date: Wed 4 Dec 1991 15:16:33 EST
From: Scott Musman <musman@radar.nrl.navy.mil>
Subject: Job Announcement

	Radar Division
	Naval Research Laboratory
	Washington, D.C.

	The Radar division of NRL now has position available for an
applied researcher into Automatic Recognition of Radar Imagery. 
The work involves data driven and model based approaches to feature 
extraction, classification and multi-frame image understanding. 
Applicants with experience in C, Unix and X are preferred (experience
with Lisp is a plus but is not required). The ability to obtain a 
Security Clearance will be required to be eligible for the position.
	Any people who are interested in hearing more details
about the job opening, or who may have any specific questions, should 
contact Scott Musman, by phone at 202-767-3610, or by e-mail at 
musman@radar.nrl.navy.mil.

------------------------------

Date: Thu, 05 Dec 91 17:16:42 -0600
From: swain@gargoyle.uchicago.edu
Subject: Promising Directions in Active Vision

This summer the National Science Foundation sponsored a workshop on the
subject of Active Vision, an approach to computer vision that stresses
the tight coupling of vision and action.  At the workshop a group of
researchers within this emerging discipline wrote a document intended to help
guide research and funding entitled ``Promising Directions in Active
Vision''.  Thanks to funding from the NSF, IBM and Hughes Research
Laboratories, copies are available free of charge.  If you would like a
copy, please send e-mail to riss@cs.uchicago.edu, or write to:

Nerissa Walton
Department of Computer Science
University of Chicago
1100 E 58th St.
Chicago, IL 60637

A postscript version of the document can be obtained via anonymous ftp
from gargoyle.uchicago.edu.  It is the file active-vision.ps in the 
pub/vision directory.  There is also a compressed version of the
postscript file in the same directory, named active-vision.ps.Z.

The abstract reads:

		PROMISING DIRECTIONS IN ACTIVE VISION
      Written by the attendees of the NSF Active Vision Workshop
	       University of Chicago, August 5-7, 1991
	    Edited by Michael J. Swain and Markus Stricker

Active vision systems have mechanisms that can actively control camera
parameters such as position, orientation, focus, zoom, aperture and
vergence (in a two camera system) in response to the requirements of
the task and external stimuli.  They may also have features such as
spatially variant (foveal) sensors.  More broadly, active vision
encompasses attention, selective sensing in space, resolution and time,
whether it is achieved by modifying physical camera parameters or the
way data is processed after leaving the camera.

In the active vision paradigm, the basic components of the visual
system are visual behaviors tightly integrated with the actions they
support; these behaviors may not require elaborate categorical
representations of the 3-D world.  Because the cost of generating and
updating a complete, detailed model of our everyday environment is too
high, this approach to vision is vital for achieving robust, real-time
perception in the real world.  In addition, active control of imaging
parameters has been shown to simplify scene interpretation by
eliminating the ambiguity present in single images.

This document describes promising directions for research in active
vision and possible applications of this research.  It also discusses
progress in experimental equipment for supporting this research and
potential applications.  Important research areas in active vision
include attention, foveal sensing, gaze control, eye-hand coordination,
and integration with robot architectures.

The contributors to the document were:

A. Lynn Abbott 		 	Virginia Polytechnic Institute
Narendra Ahuja 		  	University of Illinois
Peter K. Allen 		  	Columbia University
John (Yiannis) Aloimonos 	University of Maryland
Minoru Asada 		  	Osaka University
Ruzena Bajcsy 		  	University of Pennsylvania
Dana H. Ballard 		University of Rochester
Ben Bederson 		  	Vision Applications Inc. 
Ruud M. Bolle 		  	IBM 
Peter Bonasso 		  	The MITRE Corporation
Christopher M. Brown 		University of Rochester
Peter J. Burt 		  	SRI/David Sarnoff Research Center
David Chapman 		  	Teleos Research
James J. Clark 		  	Harvard University 
Jonathon H. Connell 		IBM 
Paul R. Cooper 		  	Northwestern University 
Jill D. Crisman 		Northeastern University 
James L. Crowley 		LIFIA (France) 
Michael J. Daily 		Hughes Research Laboratories 
Jan-Olaf Eklundh 		Royal Institute of Technology, Sweden
Frank P. Ferrie 		McGill University
R. James Firby 		  	University of Chicago
Martin Herman 		  	National Institute of Science and Technology
Philip Kahn 		  	Advanced Decision Systems
Eric Krotkov 		  	Carnegie Mellon University 
Niels da Vitoria Lobo 		University of Toronto
Howard Moraff 		 	National Science Foundation
Randal C. Nelson 		University of Rochester 
H. Keith Nishihara 		Teleos Research
Thomas J. Olson 		University of Virginia
Daniel Raviv 		 	Florida Atlantic University
Giulio Sandini 		  	University of Genoa
Eric L. Schwartz 		New York University / Vision Applications Inc.
Markus Stricker 		University of Chicago
Michael J. Swain 		University of Chicago
John K. Tsotsos 		University of Toronto 
Richard Wallace 		Vision Applications Inc. 

------------------------------

Date:         Mon, 09 Dec 91 17:13:37 IST
From: Shelly Glaser      972 3 545 0060 <GLAS@TAUNIVM.TAU.AC.IL>
Organization: TAU
Subject:      OPTICOMP@TAUNIVM is now named OPT-PROC@TAUNIVM

The mailing list formerly known  as OPTICOMP@TAUNIVM was renamed in order
to avoid confusion with OptiComp Corp.,  with which it has no connection.

The new name for this list is OPT-PROC.

The OPT-PROC  mailing list is a  moderated mailing list, and  is involved
with optical computing, optical information processing and holography.

To join OPT-PROC send the message

SUBSCRIBE OPT-PROC your-everyday-name

to LISTSERV@TAUNIVM.bitnet or listserv@vm.tau.ac.il  (those are two forms
of the same address).
                                        Yours
                                                            Shelly Glaser
                                                      Moderator, OPT-PROC
------------------------------

Date:         Mon, 09 Dec 91 13:51:15 EST
From: "James W. Reese" <R505040@UNIVSCVM.CSD.SCAROLINA.EDU>
Subject:      Japanese Artificial Intelligence Industry

I am the editor of AJBS-L@NCSUVM (The Association of Japanese
Business Studies List at North Carolina State University, USA).
During the next few months, we will be adding Japanese industry
analysis files to the existing AJBS-L datafiles.

We are seeking contributor(s) for a file called JAPAN AI which
will cover the nature and characteristics of the Japanese artificial
intelligence industry (e.g. major competitors, market shares, etc.).

If you have research which would be useful, please send it to:
James W. Reese
AJBS-L Editor
R505040@UNIVSCVM.CSD.SCAROLINA.EDU (Internet)
R505040@UNIVSCVM  (Bitnet)

The address for AJBS-L is:
AJBS-L@NCSUVM.CC.NCSU.EDU (Internet)
AJBS-L@NCSUVM (Bitnet)

Thank you in advance for your assistance.

------------------------------

End of VISION-LIST digest 10.52
************************
