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: <8906161623.AA04246@deimos.ads.com> Date: 16 Jun 89 17:19:50 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: Vision-List@ADS.COM Distribution: inet Organization: The Internet Lines: 303 Approved: vision-list@ads.com Vision-List Digest Fri Jun 16 09:19:51 PDT 89 - Send submissions to Vision-List@ADS.COM - Send requests for list membership to Vision-List-Request@ADS.COM Today's Topics: rule based decisions vs functional decisions Image Repository Range Images RE: Vision-List delayed redistribution Range imagery Re: Request for range images Neural nets for vision Where is Alv software ? Vision/Image Processing Languages video recording equipment ---------------------------------------------------------------------- Date: 3 Jun 89 01:47:52 GMT From: Phillip Neal Subject: rule based decisions vs functional decisions Keywords: image understanding, machine learning , image processing Organization: Univ of Washington, Seattle Does anybody have any performance numbers for a rule based decision making image segmentation method vs a regular functional decision making method. In other words, which is better -- theoretically or empirically in terms of classification rate: 1. Developing rules like: If the edge is more than 20 grey levels and the major direction is north east, then the confidence factor for this rule is 20 else confidence factor for this rule is 0 vs 2. y = f(delta(grey),direction) if(y.gt..5) then this is a true edge. and the coefficients are 'learned' through some inductive process like discriminant analysis or some bayesian update routine. That's all for now, Phil Neal ---- nealiphc@blake.acs.washington.edu ------------------------------ Date: Mon, 5 Jun 89 09:08:43 BST From: alien%VULCAN.ESE.ESSEX.AC.UK@CUNYVM.CUNY.EDU (Adrian F. Clark) Subject: Image Repository I'm interested in collecting together a set of `standard' images of all types--TV, remote sensing, tomography, range, etc to test out a package I'm developing. I'm also looking at ways of making imagery available over a network (ie, lossless coding into that ASCII subset which will pass through most gateways unscathed). The sort of imagery I'm looking for should be both good (standard algorithms work) and bad (standard algorithms fail). If anyone else is interested in such an idea, please contact the author...especially if you've some suitable imagery! Adrian F. Clark JANET: alien@uk.ac.essex.ese ARPA: alien%uk.ac.essex.ese@nss.cs.ucl.ac.uk BITNET: alien%uk.ac.essex.ese@ac.uk Smail: Dept. of Electronic Systems Engineering, Essex University, Wivenhoe Park, Colchester, Essex C04 3SQ, U. K. Phone: (+44) 206-872432 (direct) "The great tragedy of Science--the slaying of a beautiful hypothesis by an ugly fact." -- T H Huxley (1825-95) ------------------------------ Subject: Range Images Date: Mon, 05 Jun 89 10:06:58 -0400 From: "Kenneth I. Laws" One source of range images is the NRCC Three-Dimensional Image Data Files. The collection includes: simple objects with planar, spherical, and cylindrical surfaces, sometimes overlapping; multiple views of isolated objects; human faces; and various complex objects. For information about tapes and diskettes (about $350 for each section of 40-66 images on tape, $750 on 5.25" diskettes) contact M. Rioux or L. Cournoyer Photonics and Sensors Section Laboratory for Intelligent Systems Division of Electrical Engineering National Research Council of Canada Ottawa, Ontario, Canada K1A 0R8 (613) 993-7902 -- Ken Laws National Science Foundation ------------------------------ Date: Mon, 5 Jun 89 10:46 CDT From: "H. Ogmen, OGMEN@UHVAX1.UH.EDU, OGMEN@UHVAX1.BITNET" Subject: RE: Vision-List delayed redistribution Re: Three-dimensional image data files. The National Research Council of Canada (NRC) has a large number of three-dimensional image data files. For information about these images (and prices) contact: M. Rioux, L. Cournoyer Photonics and Sensors Section Laboratory for Intelligent Systems Division of Electrical Engineering National Research Council of Canada Ottawa, Ontario, Canada K1A 0R8 Tel. (613) 993 7902 Telex: 053-4134 Telefax: 613- 952-7998 H. Ogmen Dept. of EE University of Houston ------------------------------ Date: Mon 5 Jun 89 10:50:53-PDT From: Gerard Medioni Subject: Range imagery I am aware of at least two sets of "standard" range image databases, one from university of Utah (Prof Thom Henderson), and one from the National Research Council of Canada (M. Rioux and L. Cournoyer). The first is available at a nominal fee, the second for a few hundred $$. ------------------------------ Date: Tue, 6 Jun 89 09:31:20 PDT From: Bruce Bon Subject: Re: Request for range images There is an extensive set (214 images) of range images published by the National Research Council Canada. The range data was taken with a synchronized laser scanner. A book, "The NRCC Three-dimensional Image Data Files," CNRC 29077, contains all of these images and is available at no charge from: Editorial Office, Room 301 Division of Electrical Engineering National Research Council of Canada Ottawa, Ontario, Canada K1A 0R8 Machine-readable versions are available in several formats (ASCII/binary, raw/interpolated) on 1600 bpi magtape and 5 1/4" DSDD diskettes. For information, contact: M. Rioux and L. Cournoyer Photonics and Sensors Section Laboratory for Intelligent Systems Division of Electrical Engineering National Research Council of Canada Ottawa, Ontario, Canada K1A 0R8 Telephone: (613) 993-7902 Telex: 053-4134 Telefax: (613) 952-7998 I hope this helps. Bruce Bon bon@robotics.jpl.nasa.gov (ARPAnet) ------------------------------ Date: 6 Jun 89 23:06:13 GMT From: kroger@cs.utexas.edu (Jim Kroger) Subject: Neural nets for vision Keywords: neural nets, paten recognition, computer vision Organization: U. Texas CS Dept., Austin, Texas Are there any existing applications of neural net technology to object recognition problems? I know that much theoretical work with neural nets has involved vision, the work of David Marr being an example. However, I am interested in creatng a system which can actually recognize a sizeable number of objects. I am not sure whether this is somehing that can now be accomplished in hardware, or must be implemented in software. Can anybody advise me as to existing systems or techniques, either hardware or software, which might accomplish this task? Also, what kind of hardware is optimal for software implementations? Basically, I want to know if neural net technology offers any practical, workable solution to object recognition. Any information or references will be greatly appreciated, and a summary will be posted. Jim Kroger kroger@cs.utexas.edu ------------------------------ Date: Wed, 7 Jun 89 21:24:00 edt From: parzen%jimmy@bess.HARVARD.EDU (Michael Parzen) Subject: Where is Alv software ? Back in November of 1988, I ftp'd some software written by Phill Everson called Alv (autonomous land vehicle). It was some good vision software. Does anyone know where I ftp'd this software from, i.e. where it can be located on the net ? I forgot where it was and need to get it again. Thanks in advance. Mike Parzen parzen@csc.brown.edu ------------------------------ Date: 10 Jun 89 00:13:20 GMT From: mdavcr!rdr@uunet.UU.NET (Randolph Roesler) Subject: Vision/Image Processing Languages Summary: Wanted - Image Processing Language References Keywords: Image Language Organization: /etc/organization I am looking for references to Image processing languages. What I want is a language which has builtin support for high and low level image/vision operations. I.e. image -> image operations image -> object operations object -> object operations Please, don't inform me of great general purpose languages such as lisp, prolog, .... Research and commercial languages OK. We summarize to the Net. Randy Roesler MacDonald Dettwiler Vancouver, BC, Canada 604-278-3411 uunet!van-bc!mdavcr!rdr ------------------------------ Date: 16 Jun 89 01:37:02 GMT From: munnari!latcs1.oz.au!suter@uunet.UU.NET (David Suter) Subject: video recording equipment Organization: Comp Sci, La Trobe Uni, Australia I have a query about the availabilty of video recording equipment (manufacturers names if such exists) for a medical monitoring application. Essentially the video signal has other information (other than the picture) encoded during the blanking periods. The applications require to different recording systems: 1. After a period of monitoring (say about 10 secs) the recording equipment dumps 1 picture frame to tape or disc and also the average of some quantity that has been encoded on the blanking periods. 2. After an event trigger a recording is made of THE 30 SECS TO 1 MIN that occurred PRIOR to the Event - as well as 1 MIN or so after the event. The general idea is that in both cases the encoded data as well as the video data corresponding to this, can be analysed later to see what was happening when interestin events occurred - in the later case it is important to see what lead up to the event. The applications concerned are not mine - so the details relayed may be a little hazy. However, the general charcteristics required are as above. My contact believes that there are commercial systems that do the type of thing above (DATA VIDEO ENCODER?) but doesn't know sources of such equipment. For 2. he wants any suggestions of ways of acheiving these ends (somehow having the previous 1 min available to store if an interesting event occurs). The system must be capable of running on a video tape that is changed say every 3 hrs. Thus suggestion of solutions he can get engineeered himself - or companies that deal in equipment that provide this sort of functionality. thanks. d.s. ------------------------------ End of VISION-LIST ********************