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VISION-LIST Digest 1990 04 25
Vision-List Digest Wed Apr 25 00:29:51 PDT 90
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Today's Topics:
character recognition testing
References to Automated Character Recognition wanted
Apparent Motion Simulator !
Multiplexed Codes
CVGIP table of contents, vol. 50, no. 1, April 1990: plus issues to come...
3rd Australian Conf. on Robotics
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Date: Tue, 24 Apr 90 10:40:47 EDT
From: Handprint Sample Form Account <hsf@magi.ncsl.nist.gov>
Organization: National Institute of Standards and Technology
formerly National Bureau of Standards
Subject: character recognition testing
The National Institute of Standards and Technology (NIST)
formerly National Bureau of Standards (NBS) has developed
a data base for testing handprint character recognition.
The database is on a ISO-9660 formated CD and is
described briefly below. Please forward this to
interested parties.
NIST Handprint Database
The NIST handprinted character database consists of 2100
pages of bilevel, black and white, image data of hand
printed numerals and text with a total character count of
over 1,000,000 characters. Data is compressed using CCIT
G4 compression and decompression software is provided in
C.
The total image database, in uncompressed form, contains
about 3 Gigabytes of image data, with 273,000 numerals
and 707,700 alphabetic characters. The handprinting
sample was obtained from a selection of field data
collection staff of the Bureau of the Census, with a
geographic sampling corresponding to the population
density of the United States. The geographical sampling
was done because previous national samples of
handprinted material have suggested that there are
significant regional differences in handprinting style.
Most of the individuals who participated in the sampling
are accustomed to filling out forms relatively neatly,
and so this sample may represent a "best possible" sample
of handprinting. Even so, the range of characters and
spatial placement of those characters is broad enough to
present very difficult challenges to the image
recognition systems currently available or likely to be
available in the near future.
Typical Use
This test data set was designed for multiple uses in the
area of image (character) recognition. The problem of
computer recognition of document content from images is
usually broken down into three operations. First the
relevant areas containing text are located. This is
usually referred to as field isolation. Next the entire
field image containing one or more characters is broken
into the images of individual characters. This process is
usually referred to as segmentation. Finally, these
isolated characters must be correctly interpreted. The
images in the data base are designed to test all three
of the processes.
The test data can be used for any one of the three
operations, although it is important to recognize that
the success of all subsequent steps in this process is
dependent on the success of the previous steps.
for further information contact:
Joan Sauerwine
301-975-2208
FAX 301-975-2183
------------------------------
Date: Tue, 24 Apr 90 18:17:25 PDT
From: John W. Dye Jr. <jdye@alta.ads.com>
Subject: References to Automated Character Recognition wanted
I would like to include some simple automated character
recognition into a system we are building. From the little
research I have done sofar, there appears to be a rich literature
on the subject. I would like to find out if any vision-list'ers
could point me to a "canonical" paper in the area. I am
interested in both Printed character and handwritten character
recognition. I am willing to consider neural net approaches
if they perform better than explicit approaches.
Please email responses and I'll summarize to the net.
Thanks,
JD
John Dye
Computer Scientist
Advanced Decision Systems
email: jdye@ads.com
------------------------------
Date: 20 Apr 90 15:18:52 GMT
From: rc05@GTE.COM (Ramesh Chandak)
Subject: Apparent Motion Simulator !
Organization: GTE Laboratories, Inc., Waltham, MA
I have developed a simple APPARENT MOTION simulator for the Mac just
out of my own interest in the field of Computer Vision. It simulates
Braddick's and Koler's experiments. Possible applications/uses are : run
experiments in apparent motion, a demonstration tool, etc. at the Psychology
and Vision Labs of various Universities.
Technical Information :
Works on Mac SE, Mac II and higher
Amount of Free Memory required on the system :
at least 2 Meg.
Application takes : 55K
Source Code written in THINK C
[ Features: ]
It is a simple, flexible application with
Macintosh "look-and-feel" alike user interface.
It allows the experimenter to generate PICT
frames that can be stored and recalled later.
Constant : Number of frames that can be
created and then alternated -> 2
Variables that are user- controlled :
1) Number, Size, Shape and Color of Picture
Elements
2) Background color (from black, grey, white)
2) Spatial Separation Between the two frames
3) Interstimulus duration and presentation
duration
4) Ability to store and retrieve picture
frames
Cost of the package : $20 ( manual included )
If interested, write to :
Ramesh Chandak
19 Davis Road, Apt. A16
Acton, MA 01720 (USA)
or email :
rc05@gte.com
Thank You !
Ramesh
******************************************************************************
DISCLAIMER : All the views expressed here are my own and has nothing to do
with my employer.
******************************************************************************
------------------------------
Date: 22 Apr 90 23:37:27 GMT
From: reynolds@bucasd.bu.edu (John Huntington Reynolds)
Subject: Multiplexed Codes
Organization: Boston University Center for Adaptive Systems
I'm very interested in "multiple meaning" theories (e.g. Raymond and
Lettvin, and now Optican and Richmond), the informational role that
conduction blocks in axon arbors might play, and the function of
temporally modulated pulse codes in general.
I'm writing in order to gather references to related work. I'm really
just getting my feet wet at this point -- I joined Steve Grossberg's
Cognitive and Neural Systems program as a PhD student in September,
and with courses and my R.A. work I've been too snowed under to really
pursue these interests very fully.
Work in temporal pulse encoding I am aware of includes
Chung, Raymond, and Lettvin (1970) Multiple meanings in single visual
units. Brain Behavior and Evolution 3:72-101.
Gray, Konig, Engel, and Singer (1989) Oscillatory Responses in Cat
Visual Cortex Exhibit inter-Columnar Synchronization Which
Reflects Global Stimulus Properties. Nature Vol. 338, March
1989.
Optican, Podell, Richmond, and Spitzer (1987) Temporal Encoding of
Two-Dimensional Patterns by Single Units in Primate Inferior
Temporal Cortex. (three part series) Journal of Neurophysiology.
Vol 57, No 1, January 1987.
Pratt, Gill (1990) Pulse Computation. PhD Thesis. MIT, January, 1990.
Steve Raymond and Jerry Lettvin (1978) Aftereffects of activity in
peripheral axons as a clue to nervous coding. In: Physiology
and Pathobiology of Axons. SG Waxman, ed. Raven Press, New York.
Richmond, Optican, and Gawne (1990) Neurons Use Multiple Messages
Encoded in Temporally Modulated Spike Trains to Represent
Pictures. Preprint of a chapter in Seeing Contour and Color
ed. J. Kulikowski, Pergamon Press.
... and a lot of work that has been done in the area of temporal
coding in the auditory nerve and cochlear nucleus (average localized
synchrony response (ALSR) coding).
I've finally reached a (brief) lull in my activities here, and I'd
appreciate any advice you'd care to offer.
--thanks in advance, John Reynolds
------------------------------
Date: Tue, 24 Apr 90 12:38:44 -0700
From: graham@cs.washington.edu (Stephen Graham)
Subject: CVGIP table of contents, vol. 50, no. 1, April 1990
The following is the table of contents for volume 50, Nos. 1-3:
Computer Vision, Graphics, and Image Processing
Volume 50, Number 1, April 1990
CONTENTS
M.J. Korsten and Z. Houkes. The Estimation of Geometry and Motion of a Surface
from Image Sequences by Means fo Linearization of a Parametric Model,
p. 1.
Clifford A. Shaffer and Hanan Samet. Set Operations for Unaligned Linear Quadtrees,
p. 29.
Phillip A. Veatch and Larry S. Davis. Efficient Algorithms for Obstacle
Detection Using Range Data, p. 50.
David C. knill and Daniel Kersten, Learning a Near-Optimal Estimator for Surface
Shape from Shading, p. 75.
NOTE
Amelia Fong. Algorithms and Architectures for a Class of Non-Linear
Hybrid Filters, p. 101.
Hung-Tat Tsui, Ming-Hong chan, Kin-Cheong Chu, and Shao-Hua Kong.
Orientation Estimation of 3D Surface Patches, p. 112.
BOOK REVIEW
Michael Lachance. An Introduction to Splines for Use in Computer
Graphics and Geometric Modeling. By R.H. Bartels, J.C. Beatty,
and B.A. Barsky, p. 125.
ABSTRACTS OF PAPTERS ACCEPTED FOR PUBLICATION, p. 127.
Computer Vision Graphics and Image Processing
Volume 50, Number 2, May 1990
CONTENTS
David B. Salzman. A Method of General Moments for Orienting 2D Projections
of Unknown 3D Objects, p. 129.
Jean-Bernard Martens. Deblurring digital Iamges by Means of Polynomial
Transforms, p. 157.
NOTE
Cheng-Hsiung Liu and Wen-Hsiang Tsai. 3D Curved Object
Recognition from Multiple 2D Camera Views, p. 177.
SURVEY
Azriel Rosenfeld. Image Analysis and Computer Vision: 1989, p. 188.
BOOKS RECEIVED FOR REVIEW, p. 241.
ABSTRACTS OF PAPERS ACCEPTED FOR PUBLICATION, p. 242.
Computer Vision Graphics and Image Processing
Volume 50, Number 3, June 1990
CONTENTS
H.J.A.M. Heijmans and C. Ronse. The Algebraic Basis of Mathematical
Morphology I: Dilations and Erosions, p. 245.
Long-Wen Chang and Kuen-Long Leu. A Fast Algorithm for the Restoration of
Images Based on Chain Codes Description, and Its Application, p. 296.
Jisheng Song and Edward J. Delp. The Analysis of Morphological Filters with
Multiple Structuring Elements, p. 308.
Muralidhara Subbarao. Bounds on Time-to-Collision and Rotational Component
from First-Order Derivatives of Image Flow, p. 329.
NOTES
B. White and d. Brzakovic. Two Methods of Image Extension, p. 342.
Prabir Bhattacharya and Azriel Rosenfeld. Contour Codes of Isothetic
Polygons, p. 353.
AUTHOR INDEX FOR VOLUME 50, p. 364.
------------------------------
Date: 24 Apr 90 05:15:28 GMT
From: eln561x@monu1.cc.monash.OZ.AU (Dr. kp dabke)
Subject: 3rd Australian Conf. on Robotics
Keywords: robotics, ai, vision, manufacturing
Organization: Dept. Electrical & Computer Systems Engineering, Monash University
AUSTRALIAN ROBOT ASSOCIATION
THIRD NATIONAL CONFERENCE ON ROBOTICS
MONDAY 4th - WEDNESDAY 6th JUNE 1990
TUTORIALS SUNDAY 3rd JUNE 1990
MELBOURNE EXHIBITION BUILDING
WITH
AUTOMATE AUSTRALIA EXHIBITION
REGISTRATION FORM
CONFERENCE PROGRAM
ANSETT
YOUR OFFICIAL AIRLINE
SUPPORTED BY THE DEPARTMENT OF INDUSTRY TECHNOLOGY AND RESOURCES VICTORIA
Co-sponsored by
Institution of Engineers, Australia
Institution of Electrical & Electronics Engineers
Australian Computer Society National Committee on AI & Expert systems
Manufacturing Systems Engineering RMIT
CAMTROM
INVITED SPEAKERS
******** KEYNOTE ADDRESS ********
MEDICAL APPLICATIONS OF ROBOTICS
Dr. Russell H. Taylor
******** PLENARY TALKS ********
MOBILE ROBOT NAVIGATION
Prof. Raymond A. Jarvis
Intelligent Robotics Research Centre, Monash University
HOW COMPATIBLE ARE ROBOTS AND USERS?
Dr. Laszlo Nemes
Research Advisor, CSIRO Div. Manufacturing Technology
******** PANEL DISCUSSION ********
Dr. Bob Brown (Chairman)
Chief, CSIRO Div. Manufacturing Technology, Melbourne
Prof. Malcolm Good
Mechanical and Manufacturing Engineering, University of Melbourne
Prof. Chris Cook
Electrical and Computer Engineering, University of Wollongong
Dr. Mark Rehn
Managing Director, Aptech Aust. Pty. Ltd., Melbourne
Mr. John Marshall
School of Management, Chisholm Institute of Technology
Dr. Michael Kassler
Michael Kassler & Assoc. Sydney
******** AFTER DINNER ********
Emeritus Prof. Ken H. Hunt
Department of Mechanical Engineering, Monash University
SOME SELECTED PAPERS
* Robots, AGVs and Australia
* Islands of Automation and the Stone Age - How To Get It Right
* Pilot Studies on Computer Vision Techniques for an Automated Mine
Environment (Canada)
* A Case Study of Flexible Robotic Assembly and Cycle Time Evaluation
* A Region-Based Object Tracker
* Adaptive Tracking Control of Robotic Manipulators
* A System for Programming Painting Robots (Canada)
* The Use of Imaginary Actuators in Kinematically Redundant
Mechanisms for Obstacle Avoidance
* Robotic Construction with Sequence Planning
* Parallel Robot Navigation Algorithms
* A Compliant Tactile Sensory Skin Based on Piezoresitive Elastomer
* Some Thoughts on Robotic Fuel Dispensing
* Project NUMBAT - An Emergency Mine Survey Vehicle
* Self-Tuning of Robot Program Parameters as an Improvement
Strategy for Robotic Assembly (UK)
__________________________________________________________________________
THIRD NATIONAL CONFERENCE ON ROBOTICS
TUTORIALS
SUNDAY 3RD JUNE, 1990
MORNING SESSION
A DESIGN FOR ASSEMBLY
by Roger LaBrooy
Manufacturing Systems Engineering RMIT
B MEDICAL APPLICATIONS
by Dr. Russell H. Taylor IBM USA
AFTERNOON SESSION
C MACHINE PERCEPTION
by Prof. Raymond A. Jarvis
Intelligent Robotics Research Centtre, Monash University
D ROBOT SELECTION
by ASEA BROWN BOVERI ROBOTICS DIV. STAFF
cut and send cut and send cut and send
-------------------------------------------------------------------------------
REGISTRATION FORM
THIRD NATIONAL CONFERENCE ON ROBOTICS
MONDAY 4th - WEDNESDAY 6th JUNE 1990
TUTORIALS SUNDAY 3rd JUNE 1990
The conference will be held at the Exhibition Convension Centre which is part
of the Royal Exhibition Building at Carlton, Melbourne Vic 3053. Delegates
will be required to make their own accommodation arrangements, guided by the
separate hotel data sheet obtainable from the conference organisers.
PERSONAL DETAILS OF DELEGATE:
Surname______________________________ First Name __________________________
Title ______________________________ Organisation ________________________
_____________________________________________________________________
Address_____________________________________________________________________
_____________________________________________________________________
_________________________________________________Postcode____________
Telephone ______________ Fax _______________ email _______________________
REGISTRATION FOR CONFERENCE/TUTORIALS
**** SURCHARGE FOR REGISTRATION AFTER 15 MAY 1990 $ 50.00
ARA Members A$ 215 ------
Non Members A$ 250 ------
Students * A$ 50 ------
Conference Dinner A$ 35 ------
Tutorials (details above)
Tutorial A : # A$ 100 ------
: MORNING
Tutorial B : # A$ 100 ------
Tutorial C : # A$ 100 ------
: AFTERNOON
Tutorial D : # A$ 100 ------
SURCHARGE A$ 50 ------
* with certificate from Supervisor
# A$20 for students with certificate
from supervisor
T O T A L
======
Send cheques (PAYABLE TO `ARA90') and the form to:
Dr. K.P. Dabke / Dr. C.S. Berger
Department of E&CS Engineering
Monash University
CLAYTON VIC 3168
(Melbourne)
AUSTRALIA
FAX: +61 3 565 3454 email: eln561x@monu1.cc.monash.edu.au
------------------------------
End of VISION-LIST
********************
