Date: 23 Oct 91 11:43:53-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 10.45
To: Vision-List@ADS.COM

VISION-LIST Digest    Wed Oct 23 11:43:53 PDT 91     Volume 10 : Issue 45

 - 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:

 Info requested on guilding robot arm with vision...
 Discrete Laplacian Calculation
 2K x 2K frame buffers
 Compressing Framebuffers
 Re:  compression
 ANNOUNCEMENT: beta version of Internet image browser
 Returned mail: User unknown
 Brodatz images at incisal.rutgers.edu: can't connect
 Final CFP: AI, Simulation and Planning 1992
 Final CFP: AI, Simulation and Planning 1992

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

Date: Mon, 21 Oct 91 08:48:20 EDT
From: hwang@starbase.MITRE.ORG (Vincent Hwang)
Subject: Info requested on guilding robot arm with vision...

We are currently investigating the use of visual cues 
to guide robot arm to perform precision mating. Instead of using 
the conventional visual-servoing method which maps the changes of
image features directly to joint movement, we would like to
extract relative motion and range between pairs of the following:
1) the camera, 2) the mating object (held by robot arm), and 
3) the mated object (on the table). The motion and range info can then
be used to direct robot motion.

I would appreciate any info on work (research & commercial), systems, 
and papers on this subject. I will summarize if I get sufficient response.

Thanks.

Vincent Hwang, MITRE Autonomous System Laboratory

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

Date: Wed, 23 Oct 91 14:06 GMT
From: GLYNN PETER ROBINSON <GROBINSON@portia.umds.lon.ac.uk>
Subject: Discrete Laplacian Calculation

Hi,

A colleague of mine has asked me to post this question to you guys!
Any replys can come directly to me and I'll forward them. Thanks...

**********************
I am currently calculating the Laplacian of an image using the 9-point
template

1/6 | 1 4 1 |
    | 4 -20 4 |
    | 1  4  1 |

I am looking for a 25 point (5x5 pixel) template to calculate the Laplacian
to a higher accuracy. If anyone knows of such a template or a reference that
details one I would be very grateful to hear.

Reply to:
Glynn Robinson
Dept. of Neurology
Guy's Hospital
LONDON SE1 9RT
grobinson@uk.ac.lon.umds.portia

071 955 4162 (tel)
071 955 4864 (fax)

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

Date: Mon, 21 Oct 91 06:42:55 EDT
From: dsc@stapes.ent.hmc.psu.edu (david s. channin)
Subject: 2K x 2K frame buffers

Does anyone know of a source for 2K x 2K framebuffers and monitors?
Preferably for Sbus (Suns)? I know of the Megascans but they seem
rather expensive still and are based on VME technology.

dsc@ortho.hmc.psu.edu

David S. Channin
Department of Radiology
Pennsylvania State University

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

Date: Tue, 22 Oct 91 13:31:40 GMT
From: webb+@cs.cmu.edu (Jon Webb)
Organization: Carnegie Mellon University
Subject: Compressing Framebuffers

I was looking for a VME board that could compress a video stream using
JPEG, potentially turning a color video stream at frame rate (or 22 
MB/s) into something that could be fed across the VME bus.  (JPEG can
compress 20:1 without visible loss, and it is feasible to handle a 1-2
MB/s datastream on VME.)  There doesn't seem to be anything released
right now.  However, someone did refer me to the following company,
saying they would have such a board out real soon now:

Storm Technology
1101 San Antonio Rd., Suite 101
Mountain View, CA 94043
PHONE 415-691-1111
FAX 415-691-9825
STORMTECH@AppleLink.Apple.COM 

They have a board available for the Mac right now -- as do several other
companies, e.g., SuperMac at (408) 245-2202.

Thanks for all the replies.  If anyone has more information on VME
compressing framebuffers, please let me know.

        -- J

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

Date: Sat, 19 Oct 1991 12:56:07 +0100
From: Waku K. Jules <waku@imag.fr>
Organization: IMAG Institute, University of Grenoble
Subject: Re:  compression

                      Hello !

  I need informations, descriptions or references on
  i) Criterion other than visual to appreciate a compression algorithm 
     for signal or image.
 ii) The revolutionaries Intel processors : 'Intel A82750DA and A82750PA' able
     to compress an image of 720Ko to 4.50Ko, i.e compression rate of 160:1 ?!?

                                          Waku K. Jules
                                        Lab. TIM3 - IMAG
                                        Bat. CERMO, BP 53x
                                        F - 38041 Grenoble

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

Date: Tue, 22 Oct 91 21:49:48 EDT
From: jimg@zeno.gso.uri.edu (James Gallagher)
Subject: ANNOUNCEMENT: beta version of Internet image browser

Hello,

I am looking for `beta' testers for a remote image archive browsing tool I
have written.  Below is a short description of the program. If you are
interested, please send me email at `jimg@zeno.gso.uri.edu'. The client
software which will enable browsing our AVHRR satellite image archive is
available via anonymous ftp from `zeno.gso.uri.edu'. If there is sufficient
interest, I will also make the server software available via annonymous ftp.

XBROWSE DESCRIPTION

We at the University of Rhode Island's Graduate School of Oceanography (GSO)
have developed a tool for remotely browsing images over the Internet.  The
program uses the common client/server approach. The client (xbrowse), running
on the users machine, is used to connect to the image server running on an
archive machine. The server then transmits imagery to the client which
displays that information for the user. Rather than transmitting the
information verbatim, xbrowse initially transmits a low resolution image
derived from the original image using a simple sampling algorithm. At typical
Internet transfer rates, displaying the initial frame typically take 1-3
secs. Once displayed, the initial image is repeatedly embellished with
greater detail until the information displayed is equivalent to the image in
the archive. Users can stop this iterative process at any time and can also
select areas of the image for presentation at increased resolution against a
lower resolution background.  The user can also save what is on their screen
and/or look at other images.

The program was originally designed to allow oceanographers at one site to
scan through archives of AVHRR satellite sea surface temperature images
stored at another site.  However, it could easily be be used with other 2-d
images.  As mentioned above, I am looking for people who are interested in
becoming beta testers for this software. Installing and running it requires
the X Window System and some flavor of UNIX. In addition to testing the
client program, some people might wish to experiment with installing t he
server software at their site. Since the xbrowse server (browsed) assumes
only that the images are simple raster-type images, it should be simple to
modify it to work with your particular image file format.  I am willing to
help people make these modifications as my time permits.

I should make it clear that at some time GSO intends to charge for some of
the imagery obtained from our archives via xbrowse, but those details have
yet to be worked out.  There is currently no charge for browsing any of the
data in our archive using this software. When GSO does start to charge for
data, the changeover will be unambiguous - so you don't need to worry about
being charged unexpectedly.

James Gallagher
jimg@zeno.gso.uri.edu

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

Date: Tue, 22 Oct 91 10:47:22 -0500
From: wolf@fangio.cipl.uiowa.edu
Subject: Brodatz images at incisal.rutgers.edu: can't connect

After reading about the brodatz image set I attempted to ftp them from the
location specified in VISION-LIST digest 10.41.

The location noted was at the site incisal.rutgers.edu (128.6.45.13).

I have been unable to connect to this site via ftp.

Are there any other sites which contain these images?

Any help is appreciated.

Thanks

Michael

 wolf@fangio.cipl.uiowa.edu          Disclaimer?  Hell, I don't even know her!

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

Date: 22 Oct 91 07:54:08 GMT
From: OZais@cutmcvax.cs.curtin.edu.au (Perth - AIS)
Organization: Curtin University of Technology, Computing Science
Subject: Final CFP: AI, Simulation and Planning 1992
Keywords: AI, simulation, planning, high autonomy systems

                       **** FINAL CALL FOR PAPERS ****

                                   AIS'92

                          3rd Annual Conference on
                ARTIFICIAL INTELLIGENCE, SIMULATION & PLANNING
                                    in
                           High Autonomy Systems

                               sponsored by
        Schools of Computing Science and Electrical & Computer Engineering
                       Curtin University of Technology

                              Conference theme:

                  INTEGRATING PERCEPTION, PLANNING AND ACTION
                  8 - 10 July, 1992, Perth, Western Australia

The design and development of autonomous systems requires expertise from a
multitude of areas.  The theme of this conference is  the integration of
perception, planning and action using a task-directed approach.  Years of
research in fields of vision and perception, planning, knowledge
representation, modelling, reasoning, control, simulation and many others,
have culminated in the development of models that are useful in limited and
separate domains.  However, integration of these modules in automated
intelligent systems has proved too computationally expensive.  In all these
fields there is a shift towards situated reasoning and task directed problem
solving.  Action requires intelligent decision making, and the choice of
action is based on results of close interaction between task directed sensory
perception and situated reasoning.  The underlying issue is the
representation and modelling of the relevant aspects of the environment, and
problems encountered here are closely related to those in intelligent
simulation.  Techniques in computer simulation can provide useful models that
serve as the foundation for simulating the behaviour of autonomous agents,
and such simulation can provide meaningful insight into the agent's
behaviour. This conference seeks to provide an opportunity for researchers
from a range of disciplines and application domain projects to interact and
address these issues.

SUGGESTED TOPICS:

The topics covered in this conference will include (but will not be limited to)
the conceptual as well as application-oriented issues in the following areas:

* Active vision systems with task-oriented or purposive problem-solving 
* Temporal, spatial, and situated reasoning in automated planning
* Integration of qualitative and quantitative reasoning
* Process planning and control
* Reasoning with uncertainty
* Rule-based modelling and simulation
* Intelligent integrated systems
* Learning in highly autonomous systems
* Adaptive and neural based control
* Fuzzy logic control systems
* Distributed and parallel intelligent simulation

INVITED SPEAKERS:

Rodney A. Brooks     AI Robotics laboratory, MIT
Bernard Zeigler      University of Arizona
Kit Po Wong          University of Western Australia

CONFERENCE CO-CHAIRS:

Dorota Kieronska                       Svetha Venkatesh
School of Computing Science            School of Computing Science
Curtin University of Technology        Curtin University of Technology
Western Australia                      Western Australia
dorota@cutmcvax.cs.curtin.edu.au       svetha@cutmcvax.cs.curtin.edu.au

ORGANIZING COMMITTEE:

Paul A. Fishwick       University of Florida, USA
Franz Pichler          University of Linz, Austria
Jerzy W. Rozenblit     University of Arizona, USA
Suleyman Sevinc        University of Sydney, Australia
Robin Stanton          Australian National University, Australia


PROGRAMME COMMITTEE:

Narendra Ahuja         University of Illinois, USA
Panos Antsaklis        Notre Dame University, USA
E. Balagurusamy        Institute of Public Enterprise, India
Felix Bretschneider    Siemens, Germany
Terri Caelli           University of Melbourne, Australia
F. Y. L. Chin          University of Hong Kong, Hong Kong
Silvano Colombano      NASA Ames Research Centre, USA
John Debenham          University of Technology Sydney, Australia
Vu Duong               Schlumberger Laboratory, France
Norman Foo             University of Sydney, Australia
Michael Georgeff       Australian AI Institute, Australia
Roderick Girle         Griffith University, Australia
Witold Jacak           Technical University of Wroclaw, Poland
Tag Gon Kim            University of Kansas, USA
C.T. Leondes           University of Washington, USA
Olivier Monga          INRIA, France
Ram Nevatia            University of Southern California, USA
Herbert Praehofer      University of Linz, Austria
Ethan Scarl            Boeing Computer Services, USA
Reid Simmons           Carnegie Mellon University, USA
Chuck Thorpe           Carnegie Mellon University, USA
C.P. Tsang             University of Western Australia, Australia
Haruki Ueno            Tokyo Electrical Institute, Japan

PANEL CHAIRS:

Paul A. Fishwick       University of Florida
Jerzy W. Rozenblit     University of Arizona

LOCAL ARRANGEMENTS:

Mary Simpson
Ken Swain
Lance C. C. Fung
Wladyslaw Mielczarski

SUBMISSIONS:

Five (5) copies of extended abstracts (2000 words) must be received by
November 1, 1991 (hard copies only).  A separate sheet should contain the
title of the paper, full names, addresses and email-addresses of the authors,
a short (200 words) summary and keywords indicative of the theme of the
paper.  The abstracts will be refereed, and the authors will be notified of
acceptance by January 15, 1992.  Camera-ready copy sheets will be sent to
authors of accepted papers, and the final papers will be due on March 2,
1992.  The final proceedings will be published by IEEE Press. After the
conference, selected authors may be requested to submit a paper in special
issues of archival journals related to the conference theme.
One author of each paper is expected to present the paper at the
conference.  Any technical inquiries should be directed to one of the
co-chairs of the conference.  All submissions and registration queries should
be directed to:

             Ms. Mary Simpson
             AIS'92
             School of Computing Science
             Curtin University
             PO Box U1987
             Perth, WA 6001
             Australia

             Phone:     +61 - 9 - 351 7298
             Fax:       +61 - 9 - 351 2819
             email:  OZais@cutmcvax.cs.curtin.edu.au

TIMETABLE:

Extended abstracts due:              1 November 1991
Notification of acceptance:          15 January 1992
Formatted papers due:                   2 March 1992
Registration for one author:            2 March 1992
Conference dates:                     8-10 July 1992

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

End of VISION-LIST digest 10.45
************************
