Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!decwrl!ucbvax!ADS.COM!Vision-List-Request From: Vision-List-Request@ADS.COM (Vision-List moderator Phil Kahn) Newsgroups: comp.ai.vision Subject: Vision-List delayed redistribution Message-ID: <9010020400.AA13768@deimos.ads.com> Date: 28 Sep 90 19:52:53 GMT Sender: usenet@ucbvax.BERKELEY.EDU Reply-To: Vision-List@ADS.COM Distribution: inet Organization: The Internet Lines: 334 Approved: vision-list@ads.com Vision-List Digest Fri Sep 28 11:52:53 PDT 90 - Send submissions to Vision-List@ADS.COM - Send requests for list membership to Vision-List-Request@ADS.COM 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 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)" 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 ********************