Date: 28 Sep 90 11:52:53-PST
From: Vision-List moderator Phil Kahn <Vision-List-Request@ADS.COM>
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Vision-List Digest	Fri Sep 28 11:52:53 PDT 90

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Today's Topics:

 Vision Through Stimulation of Phosphors
 Still Image Compression JPEG
 Image scaling
 Grey-level interpolation
 Preprints available on color algorithms
 Symposium on Automated Inspection of Flat Rolled Metal Products
 Third ISAI in Mexico

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

Date: Fri, 28 Sep 90 12:47:48 GMT
From: nigel@ATHENA.MIT.EDU (Sublime + Perfect One)
Subject: Vision Through Stimulation of Phosphors
Organization: Massachusetts Institute of Technology

About two (?) weeks ago I heard or read something about research
in the area of hooking up signals from a small video camera to the
cells in the brain responsible for those groovy color patterns
you see when you rub your eyes or when you stare at bright lights.

Does anyone have any references about this work or similar work 
that they would not mind e-mailing to me.  If there is a large 
request for this info I'll post it etc...

thanks
nigel

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

Date: 20 Sep 90 19:51:31 GMT
From: bedros@umn-ai.cs.umn.edu
Subject: Still Image Compression JPEG
Keywords: visual quantization matrix needed
Organization: University of Minnesota, Minneapolis

I am trying to implement the JPEG algorithm and compare it to other algorithms.
Can somebody please send me the visual quatization matrix for Y,U,V
of the JPEG algorithm , and the Hoffman table of the quantizer. 
I would appreciate some results on the Lena image ( snr,mse) .
Thanks
Saad Bedros
U.of Minnesota
bedros@ee.umn.edu

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

Date: Tue, 25 Sep 90 16:27:59 +0200
From: vlacroix@prlb.philips.be
Subject: image scaling

Suppose a digitalized image of NxN pixels. How would you transform it to
have a MxM pixels image? (M>N)

Clearly there are many possible transformations, but some of them will 
produce nice looking images, while other won't.

Please send me yours ideas or pointers to literature, I'll summarize them
for the net.

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

Date: Wed, 26 Sep 90 01:22:27 CDT
From: stanley@visual1.tamu.edu (Stanley Guan)
Subject: grey-level interpolation

Hi,

Does there exist a canned method to solve the gray level interpolation
for a deformed image.  The deformation is quivalent to a mapping which
may be expressed as
          x' = r(x, y)
and
	  y' = s(x,y).

If r(x, y) and s(x, y) were known analytically it might be possible in
principle to find non-integer values for (x, y) given integer values
of the coordinates(x', y').  Then methods such as bilinear interpolation,
cubic convolution interpolation may be applied for calculating the gray
level at (x', y').

The deformation I am interested in has no easy way to find the inverse
mapping.  So, the question is how am I going to solve the gray-level
assignment for my deformed image efficiently and systematically.  

Any suggestion or helpful hints ?  Please email me at 
	stanley@visual1.tamu.edu

Thanks in advance!

Stanley
Visualization Lab
Computer Science Dept
Texas A&M University
College Station, TX 77843-3112
Tel: (409)845-0531

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

Date: 20 Sep 90  8:33 -0700
From: mark@cs.sfu.ca
Subject: Preprints available on color algorithms

Technical report and preprint available.

Using finite dimensional models one can recover from camera RGB values
the spectra of both the illumination and the reflectances participating
in interreflections, to reasonable accuracy.
   As well, one recovers a geometrical form factor that
encapsulates shape and orientation information.

Mark S. Drew and Brian V. Funt
School of Computing Science 
Simon Fraser University
Vancouver, British Columbia, CANADA  V5A 1S6
(604) 291-4682
e-mail: mark@cs.sfu.ca

@TechReport(      FUNT89D
    ,title      = "Color constancy from mutual reflection"
    ,author     = "B.V. Funt, M.S. Drew, and J. Ho"
    ,key        = "Funt"
    ,Institution= "Simon Fraser University School of Computing Science"
    ,Number     = "CSS/LCCR TR 89-02"
    ,year       = "1989"
        )
@InProceedings(    DREW90C
    ,title      = "Calculating surface reflectance using a single-bounce
                   model of mutual reflection"
    ,author     = "M.S. Drew and B.V. Funt"
    ,key        = "Drew"
    ,organization = "IEEE"
    ,booktitle  = "Proceedings: International Conference on Computer 
                   Vision, Osaka, Dec.4-7/90"
    ,pages      = " "
    ,year       = "1990"
        )
	 	 
------------------------------

Date: Thu, 20 Sep 90 10:57:56 -0400
From: Herb Schilling <schillin@SCL.CWRU.Edu>
Subject: Symposium on Automated Inspection of Flat Rolled Metal Products

                          CALL FOR PAPERS

            12th Advanced Technology Symposium on Automated
             Inspection of Flat Rolled Metal Products


   The Advanced Technology Committee of the Iron and Steel Society will
   sponsor this symposium on November 3-6, 1991 in Orlando, Florida. The
   Symposium will focus on automated inspection - surface and internal - of 
   flat rolled metal products at all stages of production. Inspection methods
   will include those for defect detection as well as those for determination 
   of physical properties. Non-contact vision methods are of particular
   interest. The committee is soliciting abstracts on the
   following topics :

    From Instrumentation Suppliers / Researchers
    --------------------------------------------

              -   Advanced sensors/ automated systems
              -   New applications
              -   Research results
              -   Technology trends

    From Users of Inspection Systems
    --------------------------------

              -   Experiences with current inspection technologies
              -   Inspection system start-up/tuning challenges
              -   Benefits derived from the application of automated
                         inspection systems
              -   Future inspection needs


     Reply, by January 15, 1991 , to :


	Mr. E. A. Mizikar
	Senior Director, Process Development
        LTV Technology Center
        6801 Brecksville Road
        Independence, Ohio 44131
        USA

	Telephone : (216) 642-7206
        Fax No    : (216) 642-4599


	Or send email to : Herb Schilling at schillin@scl.cwru.edu

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

Date:         Fri, 28 Sep 90 09:40:06 CST
From: "Centro de Inteligencia Artificial(ITESM)" <ISAI@TECMTYVM.MTY.ITESM.MX>
Subject:      THIRD ISAI IN MEXICO

     To whom it may concern:
          Here you will find the information concerning the
      "THIRD INTERNATIONAL SYMPOSIUM ON ARTIFICIAL INTELLIGENCE".

          Please also display it in your bulletin board.
          Thank you very much in advance.
              Sincerely,
                        The Symposium Publicity Committee.
====================================================================
          THIRD INTERNATIONAL SYMPOSIUM ON
               ARTIFICIAL INTELLIGENCE:
  APPLICATIONS OF ENGINEERING DESIGN & MANUFACTURING IN
          INDUSTRIALIZED AND DEVELOPING COUNTRIES

             OCTOBER 22-26, 1990
                ITESM, MEXICO

   The Third International Symposium on Artificial Intelligence will
   be held in Monterrey, N.L. Mexico on October 22-26, 1990.
   The Symposium is sponsored by the ITESM (Instituto Tecnologico y
   de Estudios Superiores de Monterrey)  in cooperation with the
   International Joint Conferences on Artificial Intelligence Inc.,
   the American Association for Artificial Intelligence, the Sociedad
   Mexicana de Inteligencia Artificial and IBM of Mexico.

   GOALS:
   * Promote the development and use of AI technology in the
     solution of real world problems. Analyze the state-of-the-art
     of AI technology in different countries. Evaluate efforts
     made in the use of AI technology in all countries.

   FORMAT:
   ISAI consists of a tutorial and a conference.
           Tutorial.- Oct. 22-23
           Set of seminars on relevant AI topics given in two days.
   Topics covered in the Tutorial include:
   "Expert Systems in Manufacturing"
   Mark Fox, Ph.D., Carnegie Mellon University, USA
   "A.I. as a Software Development Methodology"
   Randolph Goebel, Ph.D., University of Alberta, Canada

            Conference.- Oct. 24-26
            Set of lectures given during three days. It consists of
   invited papers and selected papers from the "Call for Papers"
   invitation. Areas of application include: computer aided product
   design, computer aided product manufacturing, use of industrial
   robots, process control and ES, automatic process inspection and
   production planning.
   Confirmed guest speakers:
   Nick Cercone, Ph.D, Simon Fraser University, Canada
   "Expert Information Management with Integrated Interfaces"

   Mitsuru Ishizuka, Ph.D, University of Tokyo, Japan
   "Fast Hypothetical Reasoning System as an Advanced
   Knowledge-base Framework"

   Alan K. Mackworth, Ph.D, University of British Columbia, Canada
   "Model-based Computational Vision"

   Antonio Sanchez, Ph.D, Universidad de las Americas, Mexico

   Sarosh N. Talukdar, Ph.D, Carnegie Mellon University, USA
   "Desing System Productivity: Some bottlenecks and potential
   solutions".

   Carlos Zozaya Gorostiza, Ph.D, CONDUMEX, Mexico

   IMPORTANT:
             Computer manufacturers, AI commercial companies,
   universities and selected papers with working programs could
   present products and demonstrations during the conference.
   In order to encourage an atmosphere of friendship and exchange
   among participants, some social events are being organized.
     For your convinience we have arranged a free shuttle bus
   service between the hotel zone and the ITESM during the three
   day conference.

    FEES:
         Tutorial.-
           Professionals    $ 250 USD + Tx(15%)
           Students         $ 125 USD + Tx(15%)
        Conference.-
           Professionals    $ 180 USD + Tx(15%)
           Students         $  90 USD + Tx(15%)
           Simultaneous Translation   $ 7 USD
           Formal dinner    $ 25 USD *
           *(Includes dinner, open bar, music  (Oct 26))
    Tutorial fee includes:
        Tutorial material.
        Welcoming cocktail party (Oct.22)

    Conference fee includes:
        Proceedings.
        Welcoming cocktail party (Oct.24)
        Cocktail party. (Oct.25)

    HOTELS:
        Call one to the hotels listed below and mention that you
    are going to the 3rd. ISAI. Published rates are single or
    double rooms.
    HOTEL                   PHONE*              RATE
    Hotel Ambassador       42-20-40          $85 USD + Tx(15%)
    Gran Hotel Ancira      42-48-06          $75 USD + Tx(15%)
                           91(800) 83-060
    Hotel Monterrey        43-51-(20 to 29)  $60 USD + Tx(15%)
    Hotel Rio              44-90-40          $48 USD + Tx(15%)
    * The area code for Monterrey is (83).

    REGISTRATION PROCEDURE:
        Send personal check payable to "I.T.E.S.M." to:
              "Centro de Inteligencia Artificial,
               Attention: Leticia Rodriguez,
               Sucursal de Correos "J", C.P. 64849,
               Monterrey, N.L. Mexico"

        INFORMATION:
              CENTRO DE INTELIGENCIA ARTIFICIAL, ITESM.
              SUC. DE CORREOS "J", C.P. 64849 MONTERREY, N.L. MEXICO.
              TEL.    (83) 58-20-00 EXT.5132 or 5143.
              TELEFAX (83) 58-07-71, (83) 58-89-31,
              NET ADDRESS:
                          ISAI AT TECMTYVM.BITNET
                          ISAI AT TECMTYVM.MTY.ITESM.MX


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

End of VISION-LIST
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