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VISION-LIST Digest 1990 03 15
Vision-List Digest Thu Mar 15 09:39:46 PDT 90
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Today's Topics:
Vector correlation
Use of Artificial Neural Networks in Image Processing
Additions to List of IP Source Code Packages
Australian AI Conference
Call for discussion: comp.robotics
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Date: Tue, 13 Mar 90 04:00:21 GMT
From: us214777@mmm.serc.3m.com (John C. Schultz)
Subject: vector correlation
Organization: 3M - St. Paul, MN 55144-1000 US
A friend gave me a copy of an article from the Jan 1990 (p 138-9) Photonics
Spectra on "Vector Correlation" which was the first I have heard of the
concept of vector correlation.
As I understand what the author was talking about, you use a high-pass filter
such as a Sobel to determine edge magnitude and gradient (the article only
discussed 4 angles vs. Sobel's 8). The correlation for object location can
then be done much more robustly wrt lighting variations by correlating the 4
(or 8 for Sobel?) images for each direction vector and summing the resulting
correlation images.
The advantages of this approach would seem to be:
1. insensivity to light level even as compared to normalized correlation
2. greater location precision since the object location is completely
determined by its edge location(s)
The disadvantage is the computational complexity - what was one correlation
has suddenly become 4 (or 8 in the case of Sobel?).
My questions:
Why vector correlation? Seems to me this is just a fancy name for object edge
correlation.
Does anyone know have any references for this technique? Possibly under a
different name? The author was from Applied Intelligent Systems Inc. and
neglected to include any references :-).
Anyone have any experience with this technique? Any code they would be
willing to share?
As a final note, I think this is what Intelledex uses internally to their
"turn-key" vision system and they do get 1/10 pixel location precision under a
lot of variable and/or poor lighting conditions.
John C. Schultz EMAIL: jcschultz@mmm.3m.com
3M Company, Building 518-01-1 WRK: +1 (612) 733 4047
1865 Woodlane Drive, Dock 4
Woodbury, MN 55125
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Date: Wednesday, 14 Mar 1990 13:37:03 EST
From: m20163@mwvm.mitre.org (Nahum Gershon)
Subject: Use of Artificial Neural Networks in Image Processing
I am looking for references on the use of Artificial Neural Networks
in image processing and also in biomedical imaging. Does anyone have
any information?
* * Nahum
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Date: Tue, 13 Mar 90 12:09:16 PST
From: Scott E. Johnston <johnston@odin.ads.com>
Subject: Additions to List of IP Source Code Packages
In a recent posting to the vision-list I listed packages of image
processing source code, available in the public domain or for a
one-time license. I inadvertently left out the HIPS software package
developed by Michael Landy. My apologies to Professor Landy. Here is
the information on HIPS. In addition I received information about
a package called XVision available from the University of New
Mexico. Once again, I welcome any additions or corrections to this list.
Scott E. Johnston
johnston@ads.com
Advanced Decision Systems, Inc.
Mountain View, CA 94043
========================================================================
HIPS
Contact: SharpImage Software
P.O. Box 373
Prince St. Station
NY, NY 10012
Michael Landy (212) 998-7857
landy@nyu.nyu.edu
Description:
HIPS consists of general UNIX pipes that implement image processing
operators. They can be chained together to implement more complex
operators. Each image stores history of transformations applied.
HIPS is available, along with source code, for a $3000 one-time
license fee.
HIPS supports the following:
- simple image transformations
- filtering
- convolution
- Fourier and other transforms
- edge detection and line drawing manipulation
- image compression and transmission
- noise generation
- image pyramids
- image statistics
- library of convolution masks
- 150 programs in all
========================================================================
XVision
Contact: John Rasure
Dept. of EECE
University of New Mexico
Albuquerque NM 87131
505-277-1351
rasure@bullwinkle.unm.edu
XVision is a C-based system developed at the University of New Mexico.
It includes: 1) an image processing library of 150 algorithms from early
processing to classification and shape analysis
2) a graphical form/menu interface and a command line interface
3) a visual language for configuring complex image processing
pipelines
4) an extensive 2d and 3d plotting capability
5) an interactive image analysis capability
6) code generators for generating the command line user
interface and the X windows user interface C code.
The system runs on most UNIX systems and they have a limited number of
licenses that they can give at no cost.
------------------------------
Date: Wed, 14 Mar 90 13:24:11 +0800
From: les@wacsvax.cs.uwa.oz.au (Les Kitchen)
Subject: Australian AI Conference
CALL FOR PAPERS
4th Australian Joint Conference on Artificial Intelligence
AI'90
21-23 November, 1990
Hyatt Regency, Perth, Western Australia
Everyday AI - New Tools for Society
This conference is a major regional forum for
the presentation of recent research on the
theory and practical applications of Artificial
Intelligence. It acts as a catalyst to
stimulate further research and cooperation in
this important area within the Australasia and
Indian-Pacific region. The theme of this year's
conference aims to encourage and promote AI
techniques and tools for solving everyday
problems.
Topics Include (but not limited to):
* Logic and Reasoning
* Knowledge Representation and Acquisition
* Machine Learning
* Artificial Neural Networks
====> * Computer Vision and Robotics
* Natural Language and Speech Recognition
* Expert Systems and development tools
* Applied AI in Civil, Electrical, Electronic, and Mechanical
Engineering
* Knowledge Engineering in Business Applications
* Applications in Government and Mining
Criteria for acceptance
This conference welcomes high quality papers which have a
significant contribution to the theory or practice of A.I.
Papers in the application areas will be judged by their
novelty in the application, its formulation, application of
new A.I. techniques, and the success of the application
project.
Requirement for submission
Authors must submit four copies of their full papers to AI'90
Programme Committee by 11th May 1990. Submissions after the
deadline may be returned without being opened. Notification of
acceptance and format of the camera ready copy will be posted
by the 27th July 1990. The camera ready final paper will be
due on 24th August 1990.
Paper Format for Review
The paper should be about 5000 words in length. It should be
at least one and a half spacing and clearly legible. Authors
should try to limit their paper to not more than 15 pages not
including diagrams. Each paper must include a title, an
abstract about 100 words, but no other identifying marks. The
abstract of 100 words with the title, authors names, and
correspondence address should accompany the submission on a
separate page.
Publication
All papers accepted in the conference will be published in the
conference proceedings. Following the tradition of this
conference, effort will also be made to publish selected
papers from the conference in book form for wider circulation.
Submission Check List
When submitting your paper, please include the following: Name
of contact, postal address, telephone (with country code if
applicable), fax number, e-mail address, FOUR copies of the
paper, an abstract, and a biographical note of the authors.
Submit papers to:
AI'90 Programme Committee
c/o Department of Computer Science,
University of Western Australia,
Nedlands, W.A. 6009,
AUSTRALIA
Enquiries to:
Dr. C.P.Tsang, AI'90 Programme Chair,
Tel: +61-9-380-2763
Fax: +61-9-382-1688
email: ai90paper@wacsvax.oz.au
This conference is sponsored by the Australian Computer
Society through the National Artificial Intelligence and
Expert Systems Committee.
------------------------------
Date: 9 Mar 90 00:18:30 GMT
From: ttidca.TTI.COM!hollombe%sdcsvax@ucsd.edu (The Polymath)
Subject: Call for discussion: comp.robotics
Organization: Citicorp/TTI, Santa Monica
[ I post this for your information only. Please direct responses to
the poster of this message.
phil... ]
The broad distribution of this proposal should give some idea as to why I
consider the creation of this group appropriate. The subject of robotics
can draw on information from all of these groups and more, yet none is
particularly appropriate to it. There is no one group I could go to with
a specific robotics problem with a high probability of finding anyone who
even has the same problem, let alone a solution. Rather than broadcast
such questions to the net, I'd like to see a dedicated group formed.
I therefore propose a new group:
Name: comp.robotics
Moderation: Unmoderated
Charter: The discussion and exchange of information on the practical
aspects of real-world robots and their applications --
industrial, personal and experimental.
I put in the "real-world" qualification deliberately to exclude
discussions of positronic brains, R2D2 and who, if anyone, was really
inside Robbie in "Forbidden Planet." I suggest that Asimov's laws are also
best left to a more philosophically or socially oriented group.
For those interested in leading edge research, AI, machine vision, etc. a
sci.robotics group might be more appropriate and can also be discussed at
this time. I don't think the two groups are mutually exclusive. (i.e.:
Creation of one doesn't necessarily remove the need for the other).
Follow-ups are directed to news.groups
The Polymath (aka: Jerry Hollombe, hollombe@ttidca.tti.com) Illegitimis non
Citicorp(+)TTI Carborundum
3100 Ocean Park Blvd. (213) 450-9111, x2483
Santa Monica, CA 90405 {csun | philabs | psivax}!ttidca!hollombe
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