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VISION-LIST Digest 1989 08 22
Vision-List Digest Fri Aug 18 10:18:42 PDT 89
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Today's Topics:
ICIP'89 (IEEE 1989 Int Conf on Image Processing) last announcement
GYPSY
MORPHOLOG and VISILOG update information
some ideas on image analysis methods & vision
Sensor Fusion
Postdoctoral Positions-- Yale University
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Date: Mon, 14 Aug 89 14:12:02 -0500
From: teh@cs.wisc.edu (Cho-huak Teh)
Subject: ICIP'89 (IEEE 1989 Int Conf on Image Processing) last announcement
[ I significantly shortened this announcement please contact
teh@cs.wisc.edu for a full application form and more information.
phil... ]
This is the final announcement through email of IEEE ICIP'89 to be held
in Singapore from 5 to 8 September next month. There will be presentations
of about 250 papers from 25 countries covering 26 dynamic and high-tech
topics of image processing. The Conference and its related activities
will be conducted in English.
(A) In-depth tutorials will be held from 5 to 6 Sept :
The technical sessions include :
- Biomedical Image Processing I & II
- Applications of Machine Vision
- Computer Graphics
- 3D Vision I & II
- Image Coding I, II & III
- Feature Extraction I & II
- Character Recognition
- Image Registration
- Image Segmentation
- Artificial Intelligence Techniques
- Systems and Architectures I & II
- Edge Detection
- Image Enhancement and Restoration
- Remote Sensing
- Object Recognition
- 2D Signal Processing
- Dynamic Vision I & II
- Pattern Recognition
- Video Communications
------------------------------
Date: Wed, 16 Aug 89 03:29:55 GMT
From: us214777@mmm.3m.com (John C. Schultz)
Subject: GYPSY
Organization: 3M - St. Paul, MN 55144-1000 US
In a recent article I noticed a reference to GYPSY. I and my lab had the
misfortune to purchase GYPSY several years ago (for quite a bit more
than $5000). My opinion is that it is not worth $.10.
Our version ran very slowly on a VAX 11/780 under VMS. All operations
involved reading and writing disk files so disk performance was
critically important. Even such simple tasks as negating an image
would
chew up another 512 x 512 byte disk chunk (for example). This filled up
disks very rapidly needless to say.
The FORTRAN (or RATFOR I forget which) made it difficult for me to
maintain although I did manage to add some modules. The difficulty was
the semi-infinite number of functions, arguments were passed through
before the generally small routine to do the actual number crunching.
Perhaps the most disappointing aspect was that while there were lots of
seemingly neat functions (mostly based on Haralick's facet models if you
like those), the documentation only told you what the functions did, not
why or what preprocessing was required to permit operations.
For example, I never got the region-adjacency graph to work because I
could never get the proper file(s) preprocessed correctly.
My feeling is that GYPSY is intended to be used only by Haralick's
former students and close associates. I do not fall in either category.
We use a general purpose mathematical processing package called IDL
with the VAX. Vision work uses memory mapped devices with another
image processing
package I won't recommend, on smaller systems.
You mileage may vary.
------------------------------
Date: Wed, 16 Aug 89 17:37:29 +0200
From: mohr@saturne.imag.fr (Roger Mohr)
Subject: MORPHOLOG and VISILOG update information
A previously postinf wrote:
"A few people at the University of Maryland working with Rosenfeld refered
me to a few existing software packages. There is one written by Serra's
team. It's called MORPHOLOG, or its new version which is called VISILOG;
the latter one is on sale by a French company (NOESIS) for about $8000.
If you want more information on MORPHOLOG, you may want to contact La"y
at the School of Mines in Paris. The software works on an hexagonal grid,
and a description of it can be found in :
B. La"y, Descriptors of the programs of the Software Package Morpholog,
Ecole des Mines, Paris."
This has to updated :
First af all, Bruno La"y is no more at Ecole des Mines but with his
own company: Noesis
centre d'affaires de Jouy
5 bis rue du Petit-Robinson
78950 Jouy en Josas, France
tel :(33)(1)34 65 08 95
The product Visilog is also distributed by
Noesis Vision Inc
6800 Cote de Liesse
Suite 200
Monreal, Que, H4T2A7
CANADA
tel (514) 345 14 00
Il runs not only on hexagonal grid but also ond standard rectagular grid
and runs on PC with MS-DOS and almost all the Unix workstations and support
several external devices like Matrox or Imaging and integrates more than 200
functions with few tens devoted to mathematical morphology (including grey level).
Several academic research lab in France are using this software.
I have no information about the prices, but usually you can get an
academic discount.
Roger Mohr
------------------------------
Date: Thu, 17 Aug 89 16:00:36 +0100
From: prlb2!ronse@uunet.UU.NET (Christian Ronse)
Subject: some ideas on image analysis methods & vision
I have written down some ideas on the relevance of certain image analysis
methodologies (Fourier analysis and mathematical morphology) to vision.
They are not finalized, but a few people around have told me that the question
is interesting. I would like to have other people's thoughts on the subject.
So, if you think you have something to say about it, feel free to ask me a
copy of my working document, and if you are brave enough, send back any
comments.
To get that document, send me your complete PHYSICAL ("snail") mail address,
not the electronic one (I will not send source files, only printed text).
Don't forget your country, Belgian postmen can't guess it.
PRLB Working Document WD54, June 1989
Fourier analysis, mathematical morphology, and vision
Abstract:
Two opposite orientations in image analysis are given on the one hand by
linear filtering, spectrometry, and Fourier analysis, and on the other
hand by mathematical morphology, which emphasizes order relations and
set-theoretical properties. The former derives its appeal from its wide
application in the processing of sound signals, while the latter has
been sucessfully used in the analysis of materials or in cytology. We
make a fundamental study of issues at hand in the choice of such
methodologies in image analysis and vision. We start by outlining the
difference in purpose of vision and audition and its physical basis, the
scattering of waves. We criticize Serra's arguments on this matter. Then
we consider the general limitations of linear filtering methodologies
and the unsuitability of phase-independent spectrometry. We propose a
paradigm of concurrent processing and of sorting of information rather
than a single sequence of processing modules with a controlled loss of
information. Finally we analyse the domain of applicability of
mathematical morphology to the visual process and suggest that it is
restricted to certain types of tasks.
Christian Ronse
Internet: maldoror@prlb.philips.be
UUCP: maldoror@prlb2.uucp
ARPA: maldoror%prlb.philips.be@uunet.uu.net
maldoror%prlb2.uucp@uunet.uu.net
BITNET: maldoror%prlb.philips.be@cernvax
maldoror%prlb2.uucp@cernvax
Philips Research Laboratory Brussels
Av. E. Van Becelaere, 2 b. 8
B-1170 Brussels, Belgium
------------------------------
Date: Thu, 17 Aug 89 13:51 EDT
From: Bartholomew Tschi-Quen 5C40 <tschi-quen@lewis.crd.ge.com>
Subject: Sensor Fusion
I would like to know if anyone on this list has information
Concerning Sensor Fusion since we are looking into this area
and are very much interested in it. Thanks you.
-Tschi-Quen, Tech. liason
Com. Vision group, GE
[ You might check the Proceedings of the AAAI 1987 Workshop on
Spatial Reasoning and Sensor Fusion, Oct. 1987, Pheasant Run Resort,
St. Charles, IL; also, Rosenfeld's bibliography in CVGIP is always
useful (better than Science Citation Index). What are other sources?
phil... ]
------------------------------
Date: Fri, 18 Aug 89 11:41 EDT
From: DUNCAN%DUNCAN@Venus.YCC.Yale.Edu
Subject: Postdoctoral Positions-- Yale University
YALE UNIVERSITY
Postdoctoral Positions in Medical Image Analysis
One to two positions are open within a research group interested in
developing computer vision- and image understanding- based approaches
to several medical image analysis problems. We are particularly
interested in using model-based optimization strategies for locating
and quantifying anatomical structure, and are in the process of
extending these ideas to handle three-dimensional and four-dimensional
data sets now becoming available from several diagnostic imaging
modalities (including Magnetic Resonance). The group has four faculty
members performing medical image processing/image analysis research, 8
Ph.D. students and 2 full-time programmers. The positions are joint
between the Departments of Diagnostic Radiology and Electrical
Engineering. In addition, the research group has strong ties with
faculty members in the Computer Science Department. Those who apply
should have a Ph.D. in Electrical Engineering or Computer Science,
preferably with a strong programming background and some familiarity
with, and coursework in, image processing and computer vision. The
initial appointment will be for one year, renewable for a second year
contingent upon the availability of funds and by mutual agreement.
Salary will be based on background and experience, but is expected to
be in the $28K - $32K range. Review of applications will begin
immediately and will be accepted until the positions are filled.
Applicants should send a resume and the names and addresses of three
references to: Professor James Duncan, Departments of Diagnostic
Radiology and Electrical Engineering, Yale Unversity, 333 Cedar Street
(327 BML), New Haven, Connecticut, 06510, and/or contact him at
Duncan@Venus.YCC.Yale.edu.
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End of VISION-LIST
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