Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!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: <8908230500.AA05555@deimos.ads.com> Date: 18 Aug 89 18:18:42 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: Vision-List@ADS.COM Distribution: inet Organization: The Internet Lines: 256 Approved: vision-list@ads.com Vision-List Digest Fri Aug 18 10:18:42 PDT 89 - Send submissions to Vision-List@ADS.COM - Send requests for list membership to Vision-List-Request@ADS.COM Today's Topics: ICIP'89 (IEEE 1989 Int Conf on Image Processing) last announcement GYPSY MORPHOLOG and VISILOG update information some ideas on image analysis methods & vision Sensor Fusion Postdoctoral Positions-- Yale University ---------------------------------------------------------------------- Date: Mon, 14 Aug 89 14:12:02 -0500 From: teh@cs.wisc.edu (Cho-huak Teh) Subject: ICIP'89 (IEEE 1989 Int Conf on Image Processing) last announcement [ I significantly shortened this announcement please contact teh@cs.wisc.edu for a full application form and more information. phil... ] This is the final announcement through email of IEEE ICIP'89 to be held in Singapore from 5 to 8 September next month. There will be presentations of about 250 papers from 25 countries covering 26 dynamic and high-tech topics of image processing. The Conference and its related activities will be conducted in English. (A) In-depth tutorials will be held from 5 to 6 Sept : The technical sessions include : - Biomedical Image Processing I & II - Applications of Machine Vision - Computer Graphics - 3D Vision I & II - Image Coding I, II & III - Feature Extraction I & II - Character Recognition - Image Registration - Image Segmentation - Artificial Intelligence Techniques - Systems and Architectures I & II - Edge Detection - Image Enhancement and Restoration - Remote Sensing - Object Recognition - 2D Signal Processing - Dynamic Vision I & II - Pattern Recognition - Video Communications ------------------------------ Date: Wed, 16 Aug 89 03:29:55 GMT From: us214777@mmm.3m.com (John C. Schultz) Subject: GYPSY Organization: 3M - St. Paul, MN 55144-1000 US In a recent article I noticed a reference to GYPSY. I and my lab had the misfortune to purchase GYPSY several years ago (for quite a bit more than $5000). My opinion is that it is not worth $.10. Our version ran very slowly on a VAX 11/780 under VMS. All operations involved reading and writing disk files so disk performance was critically important. Even such simple tasks as negating an image would chew up another 512 x 512 byte disk chunk (for example). This filled up disks very rapidly needless to say. The FORTRAN (or RATFOR I forget which) made it difficult for me to maintain although I did manage to add some modules. The difficulty was the semi-infinite number of functions, arguments were passed through before the generally small routine to do the actual number crunching. Perhaps the most disappointing aspect was that while there were lots of seemingly neat functions (mostly based on Haralick's facet models if you like those), the documentation only told you what the functions did, not why or what preprocessing was required to permit operations. For example, I never got the region-adjacency graph to work because I could never get the proper file(s) preprocessed correctly. My feeling is that GYPSY is intended to be used only by Haralick's former students and close associates. I do not fall in either category. We use a general purpose mathematical processing package called IDL with the VAX. Vision work uses memory mapped devices with another image processing package I won't recommend, on smaller systems. You mileage may vary. ------------------------------ Date: Wed, 16 Aug 89 17:37:29 +0200 From: mohr@saturne.imag.fr (Roger Mohr) Subject: MORPHOLOG and VISILOG update information A previously postinf wrote: "A few people at the University of Maryland working with Rosenfeld refered me to a few existing software packages. There is one written by Serra's team. It's called MORPHOLOG, or its new version which is called VISILOG; the latter one is on sale by a French company (NOESIS) for about $8000. If you want more information on MORPHOLOG, you may want to contact La"y at the School of Mines in Paris. The software works on an hexagonal grid, and a description of it can be found in : B. La"y, Descriptors of the programs of the Software Package Morpholog, Ecole des Mines, Paris." This has to updated : First af all, Bruno La"y is no more at Ecole des Mines but with his own company: Noesis centre d'affaires de Jouy 5 bis rue du Petit-Robinson 78950 Jouy en Josas, France tel :(33)(1)34 65 08 95 The product Visilog is also distributed by Noesis Vision Inc 6800 Cote de Liesse Suite 200 Monreal, Que, H4T2A7 CANADA tel (514) 345 14 00 Il runs not only on hexagonal grid but also ond standard rectagular grid and runs on PC with MS-DOS and almost all the Unix workstations and support several external devices like Matrox or Imaging and integrates more than 200 functions with few tens devoted to mathematical morphology (including grey level). Several academic research lab in France are using this software. I have no information about the prices, but usually you can get an academic discount. Roger Mohr ------------------------------ Date: Thu, 17 Aug 89 16:00:36 +0100 From: prlb2!ronse@uunet.UU.NET (Christian Ronse) Subject: some ideas on image analysis methods & vision I have written down some ideas on the relevance of certain image analysis methodologies (Fourier analysis and mathematical morphology) to vision. They are not finalized, but a few people around have told me that the question is interesting. I would like to have other people's thoughts on the subject. So, if you think you have something to say about it, feel free to ask me a copy of my working document, and if you are brave enough, send back any comments. To get that document, send me your complete PHYSICAL ("snail") mail address, not the electronic one (I will not send source files, only printed text). Don't forget your country, Belgian postmen can't guess it. PRLB Working Document WD54, June 1989 Fourier analysis, mathematical morphology, and vision Abstract: Two opposite orientations in image analysis are given on the one hand by linear filtering, spectrometry, and Fourier analysis, and on the other hand by mathematical morphology, which emphasizes order relations and set-theoretical properties. The former derives its appeal from its wide application in the processing of sound signals, while the latter has been sucessfully used in the analysis of materials or in cytology. We make a fundamental study of issues at hand in the choice of such methodologies in image analysis and vision. We start by outlining the difference in purpose of vision and audition and its physical basis, the scattering of waves. We criticize Serra's arguments on this matter. Then we consider the general limitations of linear filtering methodologies and the unsuitability of phase-independent spectrometry. We propose a paradigm of concurrent processing and of sorting of information rather than a single sequence of processing modules with a controlled loss of information. Finally we analyse the domain of applicability of mathematical morphology to the visual process and suggest that it is restricted to certain types of tasks. Christian Ronse Internet: maldoror@prlb.philips.be UUCP: maldoror@prlb2.uucp ARPA: maldoror%prlb.philips.be@uunet.uu.net maldoror%prlb2.uucp@uunet.uu.net BITNET: maldoror%prlb.philips.be@cernvax maldoror%prlb2.uucp@cernvax Philips Research Laboratory Brussels Av. E. Van Becelaere, 2 b. 8 B-1170 Brussels, Belgium ------------------------------ Date: Thu, 17 Aug 89 13:51 EDT From: Bartholomew Tschi-Quen 5C40 Subject: Sensor Fusion I would like to know if anyone on this list has information Concerning Sensor Fusion since we are looking into this area and are very much interested in it. Thanks you. -Tschi-Quen, Tech. liason Com. Vision group, GE [ You might check the Proceedings of the AAAI 1987 Workshop on Spatial Reasoning and Sensor Fusion, Oct. 1987, Pheasant Run Resort, St. Charles, IL; also, Rosenfeld's bibliography in CVGIP is always useful (better than Science Citation Index). What are other sources? phil... ] ------------------------------ Date: Fri, 18 Aug 89 11:41 EDT From: DUNCAN%DUNCAN@Venus.YCC.Yale.Edu Subject: Postdoctoral Positions-- Yale University YALE UNIVERSITY Postdoctoral Positions in Medical Image Analysis One to two positions are open within a research group interested in developing computer vision- and image understanding- based approaches to several medical image analysis problems. We are particularly interested in using model-based optimization strategies for locating and quantifying anatomical structure, and are in the process of extending these ideas to handle three-dimensional and four-dimensional data sets now becoming available from several diagnostic imaging modalities (including Magnetic Resonance). The group has four faculty members performing medical image processing/image analysis research, 8 Ph.D. students and 2 full-time programmers. The positions are joint between the Departments of Diagnostic Radiology and Electrical Engineering. In addition, the research group has strong ties with faculty members in the Computer Science Department. Those who apply should have a Ph.D. in Electrical Engineering or Computer Science, preferably with a strong programming background and some familiarity with, and coursework in, image processing and computer vision. The initial appointment will be for one year, renewable for a second year contingent upon the availability of funds and by mutual agreement. Salary will be based on background and experience, but is expected to be in the $28K - $32K range. Review of applications will begin immediately and will be accepted until the positions are filled. Applicants should send a resume and the names and addresses of three references to: Professor James Duncan, Departments of Diagnostic Radiology and Electrical Engineering, Yale Unversity, 333 Cedar Street (327 BML), New Haven, Connecticut, 06510, and/or contact him at Duncan@Venus.YCC.Yale.edu. ------------------------------ End of VISION-LIST ********************