Path: utzoo!utgpu!water!watmath!clyde!rutgers!uwvax!dogie!uwmcsd1!ig!agate!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: <8804230049.AA18114@deimos.ads.com> Date: 21 Apr 88 00:06:24 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: Vision-List@ads.com Distribution: inet Organization: The Internet Lines: 165 Approved: vision-list@ads.arpa Vision-List Digest Wed Apr 20 16:06:24 PDT 1988 - Send submissions to Vision-List@ADS.COM - Send requests for list membership to Vision-List-Request@ADS.COM Today's Topics: *** Change in VISION LIST moderator Character recognition Digitizer boards for Q-bus contrast and size Recording Visual Images ------------------------------ Date: Wed, 20 Apr 88 14:42:16 PST From: Vision-List-Request@ads.com Subject: *** Change in VISION LIST moderator To the Readership: Just to let you know, there has been a change of guard. Tod Levitt, the moderator, protector, and champion of this Vision List for the past several years has decided to buy a sailboat and travel around the world. (Actually, Tod's not REALLY doing that; he just thought a change in moderatorship was due.) His efforts in expanding the readership (now into the thousands) have made this List the primary conversant forum for Vision and Image Processing researchers and practicians. Tod's presence and valuable input will continue in his submissions to this List. The list will continue to operate as before. That is, mail Vision List submissions to VISION-LIST@ADS.COM. Administrative mail (e.g., adding/deleting you from the list, problems in receiving the List) should continue to be directed to VISION-LIST-REQUEST@ADS.COM. Please notify me of any problems you have; this changeover is likely to cause at least a few glitches. Since Tod assumed the moderatorship in 1985, I have been encouraged at the solidity and diversity of the readership. Readers vary from newcomers to the field to well-established researchers in vision and/or image processing. The bulk of the submissions to the List is made up of seminar announcements, requests for literature, and specific system questions. This role is important in helping us keep abreast of the field and it provides us with a rapid way to answer questions by asking a large group. Yet, this List is not being utilized to our full advantage. When I founded this List in 1984, I had hoped there would be more technical dialogue on vision and IP-related issues. In part, the historically more limited role of this List is due to the great diversity in the technical background of the readership and the chronic time pressues most of us must endure. Even within these constraints, I believe that submissions to this List can be expanded in order to substantively address other important issues. I encourage all of you to consider how you can more effectively use this List and other readers to solve and discuss common problems and issues. Comments to me or submitted to the List could get this going. Phil Kahn ---------------------------------------------------------------------- From: oltz@tcgould.tn.cornell.edu (Michael Oltz) Date: 23 Mar 88 19:27:08 GMT Organization: Theory Center, Cornell U., Ithaca NY Frequently-asked question #487 :-) What are some good references re character recognition, particularly re arbitrary typeset fonts? Algorithms requiring training for each font would be fine, but forgiving algorithms would be helpful too. Please respond by email and I will summarize. Mike Oltz oltz@tcgould.tn.cornell.UUCP (607)255-8312 Cornell Computer Services 215 Computing and Communications Center Ithaca NY 14853 ------------------------------ Date: Mon, 11 Apr 88 14:38:18 CDT From: dyer@cs.wisc.edu (Chuck Dyer) Subject: Digitizer boards for Q-bus What vendors sell digitizer boards for the Q-bus (for Vaxstations)? -- Chuck Dyer dyer@cs.wisc.edu [ All I know about is the MicroVAX II/Q-bus board(s) by Data Translation (617) 481-3700; I've no experience with them. Let us know what you find. -pk- ] ------------------------------ From: munnari!latcs1.oz.au!suter@uunet.uu.net (David Suter) Subject: contrast and size Keywords: classical size illusion Date: 12 Apr 88 11:30:46 GMT Organization: Comp Sci, La Trobe Uni, Australia I am seeking pointers or comments on variations upon what I believe is called the classical size illusion: A dark square on a light background - or the reverse - seems to be larger than it really is and that this apparent size increases with increasing contrast. Specifically I am interested in whether one can deduce that a 1-D version of this (stripe instead of square) induces the same effect. Furthermore, I am interested in explanations of this illusion. I am aware of the explanations mentioned in van Erning et al. (Vision Research Vol. 28 No. 3) and wonder if any radically different explanations have been proposed. I have tried using this newsgroup for commentary and pointers before - without success - Is anybody out there? - or is it just that my queries are not in the interests of subscribers. Any comments etc. would be welcome. [ I believe this question is well within the bounds of this List. You may also want to post these type of questions to the Psychology bboards/digests. -pk- ] d.s. David Suter ISD: +61 3 479-1311 Department of Computer Science, STD: (03) 479-1311 La Trobe University, ACSnet: suter@latcs1.oz Bundoora, CSnet: suter@latcs1.oz Victoria, 3083, ARPA: suter%latcs1.oz@uunet.uu.net Australia UUCP: ...!uunet!munnari!latcs1.oz!suter TELEX: AA33143 FAX: 03 4785814 ------------------------------ Date: Thu, 14 Apr 88 11:45:54 MDT From: Wahner Brooks Subject: Recording Visual Images Greetings, Can anyone provide me recommendations for film/lens/filters and exposure durations that would record an image as the "average" human eye would see it under both photopic and scotopic conditions? Data is required for still and motion cameras (and, if anyone has worked with it, video). Leads to individuals or organizations working this problem would be useful. Thank you. Wahner Brooks 602-328-2135 [ Contrast sensing after dark adaptation is scotopic (has reduced ability to perceive color); light adapted sensing is photopic. P46 in "Digital Picture Processing," by Rosenfeld and Kak describes the phenomena. The index for the Optical Society of America or the Science Citation Index might help... -pk- ] ------------------------------ End of VISION-LIST ********************