Date: 09 Aug 90 14:11:53-PST
From: Vision-List moderator Phil Kahn <Vision-List-Request@ADS.COM>
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Vision-List Digest	Thu Aug 09 14:11:54 PDT 90

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Today's Topics:

 Suppliers of real time digital video display equipment ??
 Gould image processor for trade
 A bug in PBM software ( .pcx => pbm)
 Research Associate post in Neural Networks and Image Classification
 New book
 CVPR-91 CALL FOR PAPERS
 Vision Conference
 Summary of Computer Controllable Lenses (long)

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

Date: Tue, 7 Aug 90 09:17:24 +0200
From: jonh@tele.unit.no
Subject: Suppliers of real time digital video display equipment ??

Hi!

	Does anybody know of  any suppliers of equipment for 
real time display of digitized video sequences? Here is some
background:

	Our signal processing group has for some time been involved in
in research work in still image coding and to a lesser extent in coding
of image sequences. As we are planning to increase our activities
in the coding of image sequences, we are contemplating on acquiring equipment
for real time display digitized sequences, both monochrome and color.
All the coding algoriths will be runnning on a network of SUN SPARC stations.
We are planning to work on various image formats ranging from 352x288 pels
and up to HDTV resolution and at various frame rates. 
Also, we would prefer equipment that is based on RAM rather 
than real-time disks.

Any advice would be greately appreciated!

	John Haakon Husoy
	The Norwegian Institute of Technology
	Department of Electical and Computer Engineering
	7034 Trondheim - NTH

	NORWAY
	email: jonh@tele.unit.no
	tel:   ++ 47 + 7 + 594453
	fax:   ++ 47 + 7 + 944475

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

Date: 8 Aug 90 16:40:35 GMT
From: hughes@azroth.csee.usf.edu (Ken Hughes)
Subject: Gould image processor for trade
Organization: University of South Florida, College of Engineering

The department of Computer Science and Engineering here has a Gould IP8400
image processor that they are considering decomissioning and selling.  It
was suggested to us that instead of selling this system we might consider
trading it with another organization for a mobile robot platform somewhere
along the lines of a Cybermation robot.  If you or someone you know
might be interested in stch a trade, please contact me via e-mail.

Ken Hughes  (hughes@sol.csee.usf.edu) |  "If you were happy every day of
sysadm	     (root@sol.csee.usf.edu)  |   your life you wouldn't be human,
Dept of Comp Sci and Eng	      |   you'd be a game show host."
University of South Florida	      |     Winona Ryder, in "Heathers"

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

Date: Tue, 7 Aug 90 20:03:07 GMT
From: brian@ucselx.sdsu.edu (Brian Ho)
Subject: A bug in PBM software ( .pcx => pbm)
Organization: San Diego State University Computing Services

I have found a bug (may not appear in other system) in the PBM software.
The bug is in the program which converts a .PCX (paint brush image format)
to a Pbm portable bitmap.

The bug (very small) appear at line 102 in program "pcxtopbm.c" which is
under /pbmplus/pbm/.  The orignal code read :

    if (b & 0xC0 == 0xC0) 
      ..
      ..

However, some system (e.g. Sun 3/50) does not like this.  It miss interpret it
as  
    if (b & (OxCO == 0xC0) 
      ..
      ..

Therefore,  I have simply put a parentesis around the '&' clause

    if ((b & OxC0) == 0xC0)
      ..
      ..

  and it works Great!!!!!!!


I don't if it (the bug) appears in other system.. keep me posted...

my E-mail address is

brian@yucatec.sdsu.edu
eden@cs.sdsu.edu

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

Date:        6 Aug 1990 12:35:37 GMT
From: austin@minster.york.ac.uk
Subject: Research Associate post in Neural Networks and Image Classification

		     University	of York
Departments of Computer	Science, Electronics and Psychology

		 Research Associate post in
	  Neural Networks and Image Classification

Applications are invited for a three year  research  associ-
ateship	 within	 the  departments of Computer Science, Elec-
tronics	 and  Psychology  on  a	 SERC  image  interpretation
research  initiative. Applicants should	preferably have	pro-
gramming and research experience  of  image  interpretation,
neural networks	and psychology.

The project is aimed at	the development	of neural models  of
classification	 tasks	 and   involves	 characterizing	 the
processes involved in learning and  applying  classification
skills	in  clinical  screening	 tasks.	 A  major  aim is to
develop	models based on	current	advances in neural networks.

Salaries will be on the	 1A  scale  (  11,399  ---   13495).
Informal  enquiries  may  be  made  to	Dr. Jim	Austin (0904
432734,	email: austin@uk.ac.york.minster). Further  particu-
lars  may  be  obtained	 from  The  Registrar's	 Department,
University of York, Heslington,	York, YO1 5DD,	UK  to	whom
three copies of	a curriculum vitae should be sent. The clos-
ing date for applications  is  24  Aug	1990.  Please  quote
reference number J2.

		       August 6, 1990

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

Date: Tue, 7 Aug 90 09:47:36 PDT
From: shapiro@lillith.ee.washington.edu (Linda Shapiro)
Subject: new book

One more entry in the vision books category.  A new vision book by
Robert Haralick and Linda Shapiro is being completed this summer. It
will be published by Addison-Wesley. The following is the table of
contents.

COMPUTER AND ROBOT VISION
Table of Contents

1.  Computer Vision Overview
2.  Binary Machine Vision: Thresholding and Segmentation
3.  Binary Machine Vision: Region Analysis
4.  Statistical Pattern Recognition
5.  Mathematical Morphology
6.  Neighborhood Operators
7.  Conditioning and Labeling
8.  The Facet Model
9.  Texture
10. Image Segmentation
11. Arc Extraction and Segmentation
12. Illumination Models
13. Perspective Projection Geometry
14. Analytic Photogrammetry
15. Motion and Surface Structure 
    from Time Varying Image Sequences
16. Image Matching
17. The Consistent Labeling Problem
18. Object Models and Matching
19. Knowledge--Based Vision
20. Accuracy
21. Glossary of Computer Vision Terms

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

Date: Tue, 7 Aug 1990 10:43:32 PDT
From: Gerard Medioni <medioni%iris.usc.edu@usc.edu>
Subject: CVPR-91 CALL FOR PAPERS

                         CALL FOR PAPERS

 IEEE COMPUTER SOCIETY CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION
                  Maui Marriott on Kaanapali Beach
                    Lahaina, Maui, HI 96761
                      June 3-6, 1991

 GENERAL CHAIR:
Shahriar Negahdaripour, Department of Electrical Engineering 
Department, University of Hawaii, Honolulu, HI 96822, 
E-mail: shahriar@wiliki.eng.hawaii.edu

 PROGRAM CO-CHAIRS:
Berthold K.P. Horn, MIT Artificial Intelligence Lab, 545 Technology 
Square, Cambridge, MA  02139, E-mail: bkph@ai.mit.edu

 Gerard Medioni, Institute for Robotics and Intelligent, 
232 Powell Hall, University of Southern California, Los Angeles, CA 90089,
E-mail: medioni@iris.usc.edu

 LOCAL ARRANGEMENTS CHAIR:
Tep Dobry, Department of Electrical Engineering, University of
Hawaii  Manoa, Honolulu, HI 96822, E-mail tep@wiliki.eng.hawaii.edu

 PROGRAM COMMITTEE

 N. Ahuja     A. Blake           K. Ikeuchi     J. Malik     R. Szeliski  
 N. Ayache    A. Bovik           K. Kanatani    J. Mundy     D. Terzopoulos
 D. Ballard   E. Delp            C. Koch        R. Nevatia   W. Thompson   
 H. Baker     K. Ganapathy       C. Liedtke     H. Samet     A. Yuille     
 B. Bhanu     D. Huttenlocher    J. Little      B. Schunck   S. Zucker 

THE PROGRAM
The program consists of high quality contributed papers on all aspects
of computer vision and pattern recognition. Papers will be
refereed by the members of the program committee. Accepted papers will
be presented as long papers in a single track, short papers in two
parallel tracks, and poster papers.

PAPER SUBMISSION
Four copies of complete papers should be sent to Gerard Medioni at the address
given above by November 12, 1990. The paper should include two title 
pages, but only one containing the names and addresses of the authors, to 
permit an anonymous review process. Both title pages should contain the title 
and a short (up to 200 words) abstract. Authors  MUST restrict the 
length of the papers to 30 pages, which includes everything, meaning the two 
title pages, text (double-spaced), figures, tables, bibliography, etc. 
Authors will be notified of acceptance by February 15, 1991. Final 
camera-ready papers, typed on special forms, will be due no later than March 
15, 1991.


 FOR FURTHER INFORMATION
 Please write to:

 CVPR-91, The Computer Society of IEEE, 1730 Massachusetts Ave, N.W.,
Washington, DC 20036-1903.

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

Date: 9 Aug 90 16:17:29 GMT
From: colin@nrcaer.UUCP (Colin Archibald)
Subject: Vision Conference
Keywords: Call for Papers
Organization: NRCC-Aeroacoustics, Ottawa, Ontario

V i s i o n  I n t e r f a c e  ' 9 1

	Calgary, Alberta, Canada
	3-7 June 1991

CALL FOR PAPERS

Vision Interface '91 is the fifth Canadian Conference devoted to
computer vision, image processing, and pattern recognition.  This is
an annual conference held in various Canadian cities and is sponsored
by the Canadian Image Processing and Pattern Recognition Society.  The 1991
conference will be held in Calgary, Alberta, June 3-7 1991 in conjunction
with Graphics Interface '91. 

IMPORTANT DATES:

Four copies of a Full Paper due:	31 Oct. 1990
Tutorial Proposals due:			15 Nov. 1990
Authors Notified:			 1 Feb. 1991
Cover Submissions due:			 1 Feb. 1991
Final Paper due:			29 Mar. 1991

TOPICS:

Contributions are solicited describing unpublished research results and
applications experience in vision, including but not restricted to the
following areas:

	Image Understanding and Recognition	Modeling of Human Perception
	Speech Understanding and Recognition	Specialized Architecture
	Computer Vision				VLSI Applications
	Image Processing			Realtime Techniques
	Robotic Perception			Industrial Applications
	Pattern Analysis & Classification	Biomedical Applications
	Remote Sensing				Intelligent Autonomous Systems
	Multi-sensor Data Fusion		Active Perception


Four copies of full papers should be submitted to the Program Co-chairmen
before Oct.31 1990. Include with the paper full names, addresses, phone
numbers, fax numbers and electronic mail addresses of all the authors. One
author should be designated "contact author"; all subsequent correspondence
regarding the paper will be directed to the contact author. The other
addresses are required for follow-up conference mailings, including the
preliminary program.

FOR GENERAL INFORMATION:		SUBMIT PAPERS TO:

Wayne A. Davis				Colin Archibald and Emil Petriu
General Chairman			VI '91 Program Co-chairmen
Department of Computing Science		Laboratory for Intelligent Systems
University of Alberta			National Research Council
Edmonton, Alberta, Canada		Ottawa, Ontario, Canada
T6G 2H1					K1A 0R6
Tel:	403-492-3976			Tel:	613-993-6580

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

Date: Tue, 7 Aug 90 14:17:40 BST
From: Alan McIvor <bprcsitu!alanm@relay.EU.net>
Subject: Summary of Computer Controllable Lenses

Hi,
	I recently placed the following request:

> Subject: Computer Controllable Lenses
> 
> Hi,
> 	We are currently looking for a lens for our vision system with
> computer controllable focus, focal length, and aperture. Do any of you
> know of a source of such lenses? We have found many motorized lenses 
> but most have auto-apertures and no feedback of settings. 
> 	I recall several years ago that a company called Vicon made such
> a lens but I don't have any details. Anybody know how to get hold of
> them?
> 
> Thanks,
> 
> Dr Alan M. McIvor		
> BP International Ltd    	ukc!bprcsitu!alanm
> Research Centre Sunbury	alanm%bprcsitu.uucp@uk.ac.ukc
> Chertsey Road			bprcsitu!alanm@relay.EU.NET
> Sunbury-on-Thames       	uunet!ukc!bprcsitu!alanm
> Middlesex TW16 7LN		Tel: +44 932 764252
> U.K.                          Fax: +44 932 762999
> 


	What follows is a summary of the responses that I received.


	Many companies make motorized lenses but few make them with
feedback facilities for accurate control of the position. The feedback
is almost invariably provided by potentiometers.

	Several compaines make lenses with potentiometer feedback of the
zoom and focus setting but not the aperture. This is either auto-iris or
open-loop. Examples are:


- Cosmicar (Chori America, Inc.)

  F. Maliwat
  Electronics Division
  350 fifth Ave., Suite 3323
  New York, N.Y. 10118
  (800) 445-4233
  (212) 563-3264

  Vista Vision Systems
  Levanroy House
  Deanes Close
  Steventon
  Oxfordshire OX136SR
  UK
  tel: +44 235 834466
  fax: +44 235 832540


 Ernitec Mechatronic Lenses
  [Henrik I. Christensen <hic@vision.auc.dk> and Kourosh Pahlavan
   <kourosh@ttt1.bion.kth.se> are using these. ]

  Ernitec A/S
  Fjeldhammervej 17
  DK 2610 Rodovre
  Denmark
  Tel +45 31 70 35 11
  Fax +45 31 70 11 55

*  Ernitec UK
  39/41 Rowlands Road
  Worthing
  West Sussex BN11 3JJ
  tel: 0903 30482
  fax: 0903 213333


* Molynx Ltd
  Albany Street
  Newport
  Gwent NP9 5XW
  UK
  Tel: +44 633 821000
  Fax: +44 633 850893


* Vicon Industries, Inc.
  525 Broad Hollow Rd.
  Melville, NY 11747 USA
  Phone:  800-645-9116
  [ Chuck Steward <stewardc@turing.cs.rpi.edu> claims that the rotational
    accuracy is only 1 degree ]

* Video-Tronic
  Lahnstrasse 1
  2350 Neumunster 6
  Germany
  Phone 0 43 21 8 79 0
  Fax   0 43 21 8 79 97
  Telex 2 99 516 vido d


	The only lens that I could find that had potentiometer feedback of
all three axes is:

* TecSec TLZMNDP12575
  Vista Vision Systems
  Levanroy House
  Deanes Close
  Steventon
  Oxfordshire OX136SR
  UK
  tel: +44 235 834466
  fax: +44 235 832540


	Other approaches to the construction of a computer controllable lens
that were suggested are:

* take a normal zoom lens, mount a collar around the
  focus sleeve, the aperture sleeve and the zoom barrel separately, and
  then turn each collar with a high precision stepper motor.
	Chuck Steward <stewardc@turing.cs.rpi.edu> is currrently doing
  this.
  [ This has the benefit of allowing you to use 35mm camera lenses which
    have better optical performance than CCTV lenses]

* from Don Gennery <GENNERY@jplrob.jpl.nasa.gov>
  We also recently talked to Mechanical Technology Inc. of Latham, N. Y.,
  about the possibility of them making some computer-controlled lenses for us.


* from Lynn Abbott <abbott@vtcpe4.dal.ee.vt.edu>
       I assembled a camera system with 2 motorized lenses about 3 years ago
  at the Univ. of Illinois, with N. Ahuja.  At the time, several companies
  sold motorized lenses, but we could not locate any company which 
  produced a controller for these lenses which would interface with a
  host processor.

  We located a small company which specialized in dc servo controllers.  
  This company, TS Products, was willing to customize a pair of motorized
  Vicon lenses so that one of their controllers would drive the lens actuators.
  This controller accepts commands from a host over an RS-232 line or
  via the IEEE-488 bus.  They were willing to work with us in specifying
  the system, and we were happy with the results.
  They were at
		TS Products, Inc.
		12455 Branford St. 
		Bldg-22
		Arleta, CA 91331 USA
		Phone:  818-896-6676

* Use a auto-everything 35mm lens and a lens adaptor.
	I have heard that at the Harvard Robotics Lab they use Canon EOS
  lenses which include all the motors, etc, and talk to the camera body
  via a 4pin serial connection, the protocol for which they have decoded.

* from Shelly Glaser 011 972 3 545 0060 <GLAS@taunivm.earn>
       vandalizing an amateur video cam-corder


* use a Sony B-mount teleconferencing lens via a mount adaptor. These
  have a serial interface for remote control. Very good optics - broadcast
  quality, but quite heavy units.

	Canon UK Ltd.,
	Canon House, Manor Road,
	Wallington, Surrey SM6 OAJ, UK
	(081) 773-3173

	Fujinon Inc.,
	3N, 125 Springvale,
	West Chicago, IL 60185
	(312) 231-7888

* from Reg Willson <Reg.Willson@ius1.cs.cmu.edu>
  A second alternative is to have a motorized lens custom made.  Computer
  Optics is a small company that will build a motorized lens to your specs,
  but we found them to be far too expensive.  They quoted us $US 30,000 for
  the lens we specified - at which point we decided to build our own.
	Computer Optics Inc.,
	G. Kane
	120 Derry Road, 
	P.O. Box 7
	Hudson, New Hampshire 03051
	(603) 889-2116

	Vista Vision Systems
  	Levanroy House
  	Deanes Close
  	Steventon
  	Oxfordshire OX136SR
  	UK
  	tel: +44 235 834466
  	fax: +44 235 832540



	Given a controllable lens with DC servo motors and potentiometer
feedback, there is also the question of how to control it. Unfortunately
most available servo motor controllers assume feedback via resolvers or
optical encoders, so are unapplicable. Possible solutions are:


1) Replace the motors on the lens with servo motors with optical encoders
   or stepper motors, and use an available controller

   - from Reg Willson <Reg.Willson@ius1.cs.cmu.edu>
   The current lens we have is a Cosmicar C31211 (C6Z1218M3-2) TV grade zoom
   lens (apx $US 560).  We replaced the DC servo motors and drive train with AX
   series digital micro stepping motors from Compumotor.  The stepping motors
   have a simple RS232 interface and have far more accuracy and precision than
   the DC servo motors they replaced.  Unfortunately they're rather expensive
   ($US 1700 / degree of freedom).  We also had to have a machinist build an
   assembly for the lens and motors.
	Compumotor Division, Parker Hannifin Corporation
	5500 Business Park Drive
	Rohnert Park, CA 94928
	(800) 358-9070
	(707) 584-7558

   - Galil motor controllers for DC Servo motors
	Galil Motion Control, Inc.
	1054 Elwell Court
	Palo Alto, CA 94303
	tel: (415) 964-6494
	fax: (415) 964-0426

	Naples Controls Ltd
	White Oriels
	Chaddleworth
	Berkshire RG16 0EH
	UK
	tel: 04882 488
	fax: 04882 8802

   - Digiplan motor controllers for Stepper motors

   - Themis 4-axis motor controller for servos

   - MDS-330 Servo Interface Card
     AMC Ltd
     Unit 2, Deseronto Industrial Estate
     St Mary's Road, Langley, Berks SL3 7EW
     tel: (0753) 580660 Fax: (0753)580653
 
   - PeP VMIC intelligent motion controller
     AMC Ltd
     Unit 2, Deseronto Industrial Estate
     St Mary's Road, Langley, Berks SL3 7EW
     tel: (0753) 580660 Fax: (0753)580653
  

2) Use a dedicated PID controller for the control loop and a Digital to
   Analog convertor in the computer to provide the setpoint (i.e., desired
   zoom, focus, aperture) - one per axes.

   Example PID controllers are:

	RS Servo Control Module
	Stock Number 591-663
	RS Components, UK.

	PVP 142 Linear Servo Amplifier
	Naples Controls Ltd
	White Oriels
	Chaddleworth
	Berkshire RG16 0EH
	UK
	tel: 04882 488
	fax: 04882 8802
	

   Example DACs are:

	PeP VDAD
	AMC Ltd
	Unit 2, Deseronto Industrial Estate
	St Mary's Road, Langley, Berks SL3 7EW
	tel: (0753) 580660 Fax: (0753)580653

	MDS-330 Servo Interface Card
	UKP 1195
	AMC Ltd
	Unit 2, Deseronto Industrial Estate
	St Mary's Road, Langley, Berks SL3 7EW
	tel: (0753) 580660 Fax: (0753)580653

	MDS-620 Analogue Output card
	AMC Ltd
	Unit 2, Deseronto Industrial Estate
	St Mary's Road, Langley, Berks SL3 7EW
	tel: (0753) 580660 Fax: (0753)580653

	BVME240 Analogue Output Module
	BVM Limited
	Flanders Road
	Hedge End, Southampton
	SO3 3LG
	tel 0703 270770
	fax 0489 783589

	ACROMAG AVME9210/15
	Universal Engineering and Computing Systems
	5/11 Tower St
	Newtown
	Birmingham B19 3UY
	tel: 021-359 1749
	fax: 021-333 3137

	Motorola MVME605
	Thame Microsystems
	Thame Park Road, Thame
	Oxford OX9 3UQ
	Tel: 0844 261456
	Fax: 0844 261682

	Burr-Brown MVP904
	Thame Microsystems
	Thame Park Road, Thame
	Oxford OX9 3UQ
	Tel: 0844 261456
	Fax: 0844 261682


3) Use an ADC to read the feedback potentiometer and a DAC to provide the
   motor drive voltage (via a power amp):

   Example ADCs are:

	PeP VADI
	AMC Ltd
	Unit 2, Deseronto Industrial Estate
	St Mary's Road, Langley, Berks SL3 7EW
	tel: (0753) 580660 Fax: (0753)580653

	MDS-310
	AMC Ltd
	Unit 2, Deseronto Industrial Estate
	St Mary's Road, Langley, Berks SL3 7EW
	tel: (0753) 580660 Fax: (0753)580653

	BVME250 Analogue Input Module
	BVM Limited
	Flanders Road
	Hedge End, Southampton
	SO3 3LG
	tel 0703 270770
	fax 0489 783589

	ACROMAG AVME9320
	Universal Engineering and Computing Systems
	5/11 Tower St
	Newtown
	Birmingham B19 3UY
	tel: 021-359 1749
	fax: 021-333 3137

	Burr-Brown MVP901
	Thame Microsystems
	Thame Park Road, Thame
	Oxford OX9 3UQ
	Tel: 0844 261456
	Fax: 0844 261682


   Example combined systems are (with onboard CPUs):

	Burr Brown MPV940 controller + ACX945 Analog I/O module
	Thame Microsystems
	Thame Park Road, Thame
	Oxford OX9 3UQ
	Tel: 0844 261456
	Fax: 0844 261682

	Scan Beam A/S SB100
	Scan Beam A/S
	Rosendalsvej 17
	DK-9560 Hadsard
	Tel: +45 98 57 15 99
	Fax: +45 98 57 48 87
	[this has the advantage of onboard power amps. It is being used by
	 Henrik I. Christensen <hic@vision.auc.dk> who warns that the
	 company is unstable.]

	BVME347 + IP-DAC + IP-ADC
	BVM Limited
	Flanders Road
	Hedge End, Southampton
	SO3 3LG
	tel 0703 270770
	fax 0489 783589
 
 Dr Alan M. McIvor 
 BP International Ltd            ukc!bprcsitu!alanm 
 Research Centre Sunbury         alanm%bprcsitu.uucp@uk.ac.ukc 
 Chertsey Road                   bprcsitu!alanm@relay.eu.net 
 Sunbury-on-Thames               uunet!ukc!bprcsitu!alanm 
 Middlesex TW16 7LN              Tel: +44 932 764252 
 U.K.                            Fax: +44 932 762999

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

End of VISION-LIST
********************
