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VISION-LIST Digest Volume 10 Issue 43
VISION-LIST Digest Tue Oct 15 14:56:34 PDT 91 Volume 10 : Issue 43
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Today's Topics:
Brodatz, revisited
Looking for implemented ERD code in C.
Datacube Image Processing System
C code sought for 3-D Voronoi or Delaunay Triangulation
3d skeleton program request
More info. on Image Proc. Software (long)
Chinese Outline Fonts
Job vacancy: Image Analysis in MRI
Call for Papers: Maths of Surfaces 5 Conference
----------------------------------------------------------------------
Date: Mon, 14 Oct 91 8:31:08 EDT
From: Stanley Dunn <smd@occlusal.rutgers.edu>
Subject: Brodatz, revisited
> From: "David A. Honig" <honig@aster.ICS.UCI.EDU>
> Subject: Brodatz
>
> >Date: Wed, 18 Sep 91 7:41:27 EDT
> >From: Stanley Dunn <smd@occlusal.rutgers.edu>
> >Subject: Brodatz Textures
> >
> >I have 23 of the plates from the Brodatz album digitized. These were....
> >.
>
> These plates were probably accompanied by a little (c) which
> may attract the attention of people with little J.D.'s after their name...
>
Probably not! Last week at the Motion Workshop in Princeton, Shmuel
Peleg and I were discussing this and he seemed to think that the
copyright statement included permission to use and distribute the
texture samples. In fact, Shmuel was right; the statement gives
permission to use and distribute the textures. After all, the book is
called ``A Photographic Album for Artists and Designers'' and it seems
difficult to copyright something meant for artists and designers.
After checking the copy in my lab, I called Dover in New York and
discussed the electronic distribution of the samples. The editor did
not have any problem as long as I was not collecting any fees.
It does give rise to a new idea, though. What about a new ``brodatz-like''
album of textures of other natural forms? Say, for example, texture samples
of sharks and of lawyers. Can your texture classifier discriminate these
two samples?
Stan Dunn
------------------------------
Date: Thu, 10 Oct 91 23:57:48 -0400
From: nogueira@park.bu.edu (Carlos Antonio Marques Nogueira)
Subject: Looking for implemented ERD code in C.
I am looking for any C implementation of the Elaborated Reichardt
Detector (van Santen and Sperling, 1984). It is my intention to make
some tests and compare ERD with the model proposed by Grossberg and
Rudd (1989).
Discussions and suggestions are welcome.
Thanks in advance
C. A. M. Nogueira | email: nogueira@cns.bu.edu
Center for Adaptive Systems | phone: (617) 353- 6741
Boston University |
------------------------------
Date: Fri, 11 Oct 91 15:46:35 EDT
From: ravi@sparrms.ists.ca (Ravi Lingarkar)
Organization: Spar Aerospace Ltd, Toronto, Canada
Subject: Datacube Image Processing System
Does somebody on the network use Datacube's IP system or know somebody
who uses it? I have a couple of questions. Can you please send email to
me.
Thanks in advance,
ravi lingarkar
ravi@sparrms.ists.ca
------------------------------
Date: Mon, 14 Oct 91 15:38:07 -0400
From: "Niranjan Mayya" <nrm@mosquito.cis.ufl.edu>
Subject: C code sought for 3-D Voronoi or Delaunay Triangulation
I am looking for C code for the construction of the 3-D Voronoi
diagram or its dual - the Delaunay Triangulation of a set of points.
Any pointers or help will be appreciated.
Thanks very much,
Niranjan Mayya
Center for Computer Vision Research, Univ. of Florida
email: nrm@ufl.edu
------------------------------
Date: Fri, 11 Oct 91 11:23:21 +0200
From: Werman michael <werman@cs.huji.ac.il>
Subject: program request
I would appreciate a 3d skeleton program.
Input binary voxels
Output skeleton
Thanks
------------------------------
Date: Sun, 13 Oct 91 14:10:43 EDT
From: dorai@cps.msu.edu (Chitra Dorai)
Subject: More info. on Image Proc. Software.
Hi,
Here is an addendum to the summary I posted earlier on Image
Processing Software tools.
Chitra.
*************************************
HIPS is a set of image processing modules which together
provide a powerful suite of tools for those interested in
research, system development and teaching. Originally
developed at New York University, HIPS now represents one of
the most extensive and flexible vision and image processing
environments currently available. It runs under the UNIX
operating system. It is modular and flexible, provides
automatic documentation of its actions, and is almost
entirely independent of special equipment. It handles
sequences of images (movies) in precisely the same manner as
single frames. Programs have been developed for simple
image transformations, filtering, convolution, Fourier and
other transform processing, edge detection and line drawing
manipulation, digital image compression and transmission
methods, noise generation, and image statistics computation.
Over 200 such image transformation programs have been
developed. As a result, almost any image processing task
can be performed quickly and conveniently. Additionally,
HIPS allows users to easily integrate their own custom rou-
tines. New users become effective using HIPS on their first
day.
HIPS features images that are self-documenting. Each
image stored in the system contains a history of the
transformations that have been applied to that image. HIPS
includes a small set of subroutines which primarily deals
with a standardized image sequence header, and a large
library of image transformation tools in the form of UNIX
``filters''. Almost all HIPS facilities are also available
as subroutines at several levels of abstraction. HIPS comes
complete with source code, on-line manual pages, and on-line
documentation. HIPS is now in use on a variety of computers
including Vax and Microvax, Sun, Apollo, Masscomp, NCR
Tower, Iris, IBM AT, and so on. For image display and
input, drivers are supplied for the Adage and DataCube image
processors and the SunView, X and XView windowing libraries.
We also supply user-contributed drivers for a number of
other framestores and windowing packages (Sun gfx, Sun con-
sole, Matrox VIP-1024, ITI IP-512, Lexidata, Macintosh II, X
windowing system, NeXT, and Iris). It is a simple matter to
interface HIPS with other framestores. HIPS can be easily
adapted for other image display devices because 98% of HIPS
is machine independent.
HIPS has proven itself a highly flexible system, both
as an interactive research tool, and for more production-
oriented tasks. It is both easy to use, and quickly adapted
and extended to new uses. HIPS is supplied on magnetic tape
in UNIX tar format (either reel-to-reel or Sun cartridge),
and comes with source code, libraries, a library of convolu-
tion masks, and on-line documentation and manual pages.
HIPS has been described in Computer Vision, Graphics,
and Image Processing (Vol. 25, 1984, pp. 331-347), and in
Behavior Research Methods, Instrumentation, and Computers
(Vol. 16, 1984, pp. 199-216).
SharpImage software distributes the HIPS package and a
number of related software products. These include HIPSAD-
DON (a set of additional image processing and pattern recog-
nition tools), SUNANIM (a tool for viewing HIPS images and
animation sequences under SunView), CTOOL (a tool for edit-
ing HIPS images under SunView), and COLORHIPS (extensions
for manipulating color lookup tables).
HIPS is undergoing continuous extension in laboratories
in both the US and Europe. A new product we have introduced
is HIPSPLUS. Purchasers of HIPSPLUS are, in effect, joining
a club of image processing users, and are provided with
updates to the system. Any HIPSPLUS purchaser who provides
new HIPS modules, can exchange copies and so get an update
to their system. At any time, members of the `club' may
submit a tape and will receive an updated version with all
user-contributed software gathered by SharpImage Software in
New York, and The Turing Institute in Glasgow (who distri-
bute HIPSPLUS in Europe and who wrote HIPSADDON). HIPSPLUS
includes HIPS, HIPSADDON, and Sunanim at a single discounted
price.
For information and to order HIPS, contact:
Michael Landy (212) 998-7857
SharpImage Software ...!cmcl2!xp!msl
P.O. Box 373 landy@nyu.edu
Prince Street Station
New York, NY 10012-0007
Features of the HIPS Image Processing Software
o Written in `C'
o Command-level and subroutine interface
o Runs on any Unix system
o Drivers are available for a variety of displays
o Conveniently adapted to other displays
o Easy to learn, easy to use, easy to extend
o Fourier, Walsh, and dozens of other image transformations
o Over 200 transformations on pixels, frames, and movies (image sequences)
o Facilities for color image processing
o Unrestricted image size and sequence length
o Stored images are self-documenting. HIPS maintains a complete
log of the file history within the header file.
Every image file contains a record of who owns it, when it was created,
file format as well as a record of all HIPS operations performed on it.
o Operates on individual images or sequences of images (e.g., time 1,
time 2, ...; red, green, blue; left, right; slice 1, slice 2, ....)
o Comes with source, a complete set of on-line Unix manual pages, and
detailed documentation.
HIPS programs perform:
o Filtering, convolution, and edge detection
o Image transform processing
o Formatting and type conversion
o Image compression methods
o Image statistics
o Image arithmetic
o Image sequence manipulation
o Single frame manipulation
o Pixel value transformation (Point-transformation)
o 3D vector plotting
o Noise generation
o Device handling and halftoning
o Image generation
o Scaling and geometric transformation
o Image header manipulation
o Gaussian and Laplacian pyramids
o Colormap manipulation
o User-contributed software
------------------------------
Date: Tue, 15 Oct 91 19:06 +08:00
From: "KAM-CHEUNG KWOK MATHEMATICS DEPT." <89400062%BC750.BITNET@YALEVM.YCC.Yale.Edu>
Subject: Chinese Outline Fonts
Does anyone know the methodology of generating outline fonts, especially
Chinese outline fonts? Can anyone give me some suggestions on detecting
critical points in the outline of Chinese characters and generating the
outline based on the critical points?
Thanks!
K. C. Kwok
Email : 89400062@bc750.bitnet
------------------------------
Date: Tue, 15 Oct 1991 13:55:13 +0100
From: andys@mph.sm.ucl.ac.uk (Andrew Simmons)
Subject: Job vacancy: Image Analysis in MRI
Image Analysis in MRI
We are seeking a post-doctoral physical scientist with image analysis
experience to work on magnetic resonance images of multiple sclerosis
patients, in the NMR Research Group at the Institute of Neurology
(part of the University of London).
The Institute of Neurology is one of the leaders in neuroscience
research, where basic scientists and clinicians come together to
develop new techniques to study the brain. The NMR Research Group is
funded by the Multiple Sclerosis Society, and the MRC, to research
exclusively into multiple sclerosis using NMR. There is strong
emphasis on the development of basic physical and biological
techniques to study the disease process and its response to therapy.
A General Electric 1.5 T Signa whole body scanner has recently been
installed. This will be connected to a network of seven Sun
workstations, used for data processing and image analysis.
There are twelve staff in the group including four physicists. The
physicists in our group are affiliated to the Department of Medical
Physics, University College London. There is an active NMR physics
programme, with access to three experimental imaging spectrometers.
The person appointed will be responsible for pursuing the following
areas of research:
- Image segmentation
- lesion volume measurement
- Non-uniformity correction,
- Texture analysis
- Multi-parametric display methods
- Data-base design
- Tracking lesions in space and time.
In addition he or she will have partial responsibility for managing
the network of Suns, and giving advice to members of the group on the
use of Suns and PCs. There will be opportunities to work with other
members of the Institute, including work on histological image
analysis. The person appointed should have a good background in
general computing; some knowledge of UNIX is desirable, as is
experience of C, Fortran, and the X and Sunview window systems.
The post is initially funded for two years.
Salary: 1A scale #11,969 - #19,073 plus London weighting #2,042.
Enquiries to Dr P S Tofts (tel 071-837 3611 ext. 4301) or Dr G Barker
(ext. 4269). Applications, with c.v. and names of two referees to: Dr
P S Tofts, NMR Research Group, Institute of Neurology, Queen Square,
London WC1N 3BG by 1st November 1991
Andrew Simmons JANET : andys@uk.ac.ucl.sm.mph
Dept. of Medical Physics BITNET : andys%uk.ac.ucl.sm.mph@ukacrl.bitnet
University College London INTERNET: andys@mph.sm.ucl.ac.uk
Capper St,LONDON WC1E 6JA,UK Tel: +44 71-380-9700 Fax: +44 71-380-9577
------------------------------
Date: Tue, 15 Oct 1991 14:40:50 +0000
From: Ralph Martin <ralph@computing-maths.cardiff.ac.uk>
Subject: Call for Papers: Maths of Surfaces 5 Conference
THE INSTITUTE OF MATHEMATICS AND ITS APPLICATIONS
Fifth IMA Conference on THE MATHEMATICS OF SURFACES
University of Edinburgh 14th - 16th September 1992
CALL FOR PAPERS
The fifth IMA Conference on The Mathematics of Surfaces will be held at the
University of Edinburgh on 14th - 16th September 1992.
The recent development of computer-based methods for the construction,
representation, and manipulation of complicated surfaces has led to an
upsurge of interest in surface mathematics. A wide number of applications
now require the use of such surface descriptions, ranging from the more
obvious applications in computer aided design and machining to robot vision
and inspection of manufactured parts. Other areas where the description of
surfaces are of interest include many fields of science, medicine,
cartography, television and the film industry. This diversity and the wide
range of applicability of the subject has already enabled the IMA to hold
four very successful conferences on the mathematics of surfaces. The fifth
such conference has now been scheduled. Several international authorities
will be presenting invited papers, and contributed papers are now called
for. These will be refereed by an international program committee.
Papers will be of three types. Firstly, survey papers will describe the
state of the art of an aspect of the mathematics of surfaces. Secondly,
research papers will present new developments in the visual recognition,
manipulation, representation, design, and approximation of surfaces, with
an emphasis on computational methods and their underlying mathematical
principles. Thirdly, applications papers will cover a broad spectrum of
practical uses of surface mathematics.
This combination of topics will make the conference of interest to a wide
audience of mathematicians, computer scientists, engineers and many others
who are already developing or using computer aided descriptions of surfaces
or who wish to become acquainted with its underlying ideas and potential
applications. A key feature will be the interplay of ideas between the
theoreticians in the subject and the users of the techniques.
Confirmed invited speakers include:
Prof. A. A. Ball (University of Birmingham), Dr. M. G. Cox (National
Physical Laboratory),
Prof. T. Lyche (University of Oslo), Prof. H. Hagen (University of
Kaiserslautern),
Prof.F. Yamaguchi (Waseda University), Prof. H. W. McLaughlin (Rensselaer
Polytechnic Institute),
Dr. T. Varady (Hungarian Academy of Sciences)
Contributed papers are invited in any of the categories outlined above.
Papers will be accepted on the basis of an extended abstract (l to 2 typed
pages), which should be sent to Dr. R. R. Martin, Dept. of Computing
Mathematics, UWCC, PO Box 916, Cardiff, UK, CF2 4YN by 1st March 1992.
Abstracts may also be electronically mailed to ralph@cm.cf.ac.uk. Authors
will be notified of acceptance by 1st April, 1992. Suggestions for poster
sessions and software demonstrations will also we welcomed; the same dates
apply. Papers will be refereed by an international program committee: Prof.
R. E. Barnhill, Prof. P. Brunet, Dr. R. B. Fisher, Prof. C. M. Hoffmann,
Prof. J. Hoschek, Dr. R. R. Martin, Dr. A. Massabo, Prof. A. Myklebust,
Prof. H. Nowacki and Prof. M. J. Pratt; those judged suitable will be
included in the proceedings to be published by Oxford University Press in
the IMA Conference Proceedings series.
Enquiries regarding possible contributions should be addressed to one of
the members of the organising committee:
Dr. R. B. Fisher
(Edinburgh University, Tel.: +44 31 650 1000, Email: rbf@aifh.ed.ac.uk)
Dr. R.R. Martin
(University of Wales College of Cardiff, Tel.: +44 222 874000, Email:
ralph@cm.cf.ac.uk)
Professor M.J. Pratt
(Cranfield Institute of Technology, Tel.: +44 234 750111)
All other enquiries should be sent to Miss Pamela Irving, The Institute of
Mathematics and its Applications, 16 Nelson St., Southend-on-Sea, Essex,
England SS1 1EF.
Dr Ralph Martin
Dept of Computing Maths,
University of Wales College of Cardiff
PO Box 916, Cardiff, CF2 4YN, United Kingdom
------------------------------
End of VISION-LIST digest 10.43
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