Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.ARPA Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!aids-unix.arpa!Info-Graphics-Request From: Info-Graphics-Request@AIDS-UNIX.ARPA (Info-Graphics moderator Andy Croma Newsgroups: net.graphics Subject: Info-Graphics Digest Message-ID: <8509180101.AA07302@UCB-VAX.ARPA> Date: Sun, 15-Sep-85 06:00:54 EDT Article-I.D.: UCB-VAX.8509180101.AA07302 Posted: Sun Sep 15 06:00:54 1985 Date-Received: Fri, 20-Sep-85 04:08:28 EDT Sender: daemon@ucbvax.ARPA Reply-To: Info-Graphics@AIDS-Unix Organization: The ARPA Internet Lines: 527 Info-Graphics Digest Sun Sep 15 03:00:54 PDT 1985 - Send submissions to Info-Graphics@AIDS-Unix - Send requests for list membership to Info-Graphics-Request@AIDS-Unix Today's Topics: Info-Graphics / net.graphics Re: Wanded: Video Overlay Device for IBM PC/VCR Re: Wanded: Video Overlay Device for IBM PC/VCR Old post Impress to PostScript converter wanted Re: Info-Graphics Digest Re: Object Descriptions Wanted Tandy 2000 MS-dos Pascal RE: computer vision newsgroup Bay Area SIGGRAPH Hitachi 63484 Graphics Controller fractal dragon PC/AT as graphics-oriented support environment New to Newsgroups... Foreign Language Technical Material GKS for UNIX 4.2 paper topics Need information on a graphics tablet ---------------------------------------------------------------------- Date: Mon, 9 Sep 85 08:44:55 edt From: Kelly Booth Subject: Info-Graphics / net.graphics Today I read a rather long entry in net.graphics posted by you containing the Info-Graphics Digest dated Sun Sep 8. Most of the items had previously been posted to net.graphics. Is there a reason for repeating these postings? I am not a regular ARPA user and don't know the history behind Info-Graphics. While visiting UC Santa Cruz on sabbatical I was added to the distribution list because they did not have access to net.graphics. At that time I found that there was essentially no overlap between the two. Now that I have returned to Waterloo (and thus get net.graphics again), it is disconcerting to find the duplication that now seems to pervade. Is there a rationale behind this? If there is a valid reason for posting items twice, I suggest that the postings be split into postings containing entirely disjoint material and those containing entirely repetitious material. The header should then make this distinction. Those of us who get net.graphics could then skip the latter articles but read the former. ------------------------------ Date: 9 Sep 85 12:38:32 GMT From: decvax!mcnc!unccvax!dsi@Berkeley (Dataspan Inc) Organization: UNC-Charlotte Subject: Re: Wanded: Video Overlay Device for IBM PC/VCR References: <127@butler.UUCP> Errors-To: usenet-admin@Berkeley You probably didn't want to hear this, but there just isn't any way to do this cheaply, if at all. Sounds like you need a frame store time base corrector (I take it that you want to take SCH phased colour video from a camera, colour video from another VCR, and use your PC as the poor man's Chyron or Vidifont character generator. Real character generators used for television are "genlocked" to the station's master sync generator. The timing requirements of this are nontrivial (i.e. you must synchronize the colour subcarrier within a few nanoseconds). Thus, with the other video locked, and the character generator locked, you can then algebraically add the video from the character generator to whatever video you already have (also locked). The reason you need a frame store TBC is that there is probably no way to send "advanced" vertical sync back to your IBM-PC. (There are "line store TBC's" which maintain a correction window of + or - so many lines). You would also have to convert the RGB outputs of your PC to NTSC (if this isn't done already) and your TBC would have to have the "pre heterodyning" option to force the colour subcarrier to be in a precise relationship with the horizontal sync. You also need a TBC for your video tape recorder, unless the video coming from your PC is of reference stability. All kinds of factors enter into time base instability of helical scan VTR's, such as varying "stiction" around the headwheel, runout in the headwheel capstan and pinchroller, varying tension in the takeup spool due to the ever-changing tape pack size, relative humidity, etc. Although the video from your VCR ** looks ** stable, it in reality is very disgustingly changing frequency and so on. (To see how bad, get two TV station video sources, display one, and superimpose the other with a resistive matrix. You will see the other station's image but most likely, the syncrhonizing pulses will "cross" over the other station's image. Then, try this with a VCR and a TV station, and notice how much the sync pulses "slew". In the two TV station case, the sync is so stable, the drifting might gain one line per 15 minutes!!) If you'd like to build a TBC, you'll need to build some really macho dual ported RAM, and a system for writing in dirty video (using a clock recovered from the VCR colour burst) and writing out clean video (using a clock recovered from some reference source). You also need some way of forcing all the incoming TBC video sources to be SC-H phased because the output certainly will be! And, if you only build two field storage, you'll have to break out the delay lines and analog switches to maintain the NTSC four field sequence. Finally, the colour video coming from a PC is flat to at least 8 mHz even at NTSC rates (one of those cases where horizontal resolution can exceed vertical resolution); colour response of VCR's is not given, but I can assure you that home VCR's have very poor colour response past 0.3 to 0.5 mHz. (The detail of an NTSC image is always transmitted in monochrome. In the best of all ideal worlds, the I-channel of colour might get to 1.5 mHz). Your VCR also combs and cores the living s**t out of the video because colour-under systems are notorious for crosstalk between chrominance and luminance. Your question wasn't silly at all, though. I can see consumer TBC's being available within 4-7 years so that video freaks can mix two or more nonsynchronous sources. Then, the home video freak can do wipes, dissolves, digital video effects (!) right from his own little TBC. Right now, though, the Tektronix TBC (which is obstensibly the best) costs $12,600 - this was last summer, when they had a big sale on them after the Olympics) and is probably $ 18k new. The Intermetall people have totally missed their market with digital TV chips - we NEED a TBC chip set, not a TV receiver chip set ! (And goollyeee gee, standards converters by the time I'm 40? Phew!) David Anthony DataSpan, Inc (The Southeast's largest consumer of TRW a/d flash converters!) ------------------------------ Date: 9 Sep 85 19:39:18 GMT From: harpo!whuxlm!spuxll!kitc!les@Berkeley (Les Johnson) Organization: AT&T-IS Labs, So. Plainfield NJ Subject: Re: Wanded: Video Overlay Device for IBM PC/VCR References: <127@butler.UUCP> Errors-To: usenet-admin@Berkeley In article <127@butler.UUCP> olivier@butler.UUCP (Charles Olivier) writes: >Does anybody know of any cheap method of doing video overlay with >an IBM PC. I have an IBM PC and a VCR, and I would like to over >text (& graphics data from my pc). Can this be done cheaply? The Image Capture Board from Electronic Photography and Image Center (EPIC) at AT&T Consumer Products should be able to do this at a reasonable cost. Contact Alan Wlasuk at 317-352-6124 for more info. Les Johnson @ ihnp4!kitc!les ------------------------------ Date: 9 Sep 85 17:22:29 GMT From: decvax!genrad!panda!talcott!harvard!seismo!rochester!cmu-cs-pt!cmu-cs-h!rfb@Berkeley (Rick Busdiecker) Organization: Carnegie-Mellon University, CS/RI Subject: Old post Errors-To: usenet-admin@Berkeley Could someone who has a copy the posts by Ken Turkowski of Frank Crow's Image Generation Environment (December 1983), please either repost it (to net.sources) or mail me a copy? CMU didn't read the netnews in 1983. Rick Busdiecker rfb@h.cs.cmu.edu cmu-cs-pt!cmu-cs-h!rfb ------------------------------ Date: 9 Sep 85 19:39:27 GMT From: decvax!genrad!panda!talcott!harvard!seismo!ut-sally!ut-ngp!patricia@Berkeley (Patricia Thompson) Organization: UTexas Computation Center, Austin, Texas Subject: Impress to PostScript converter wanted Errors-To: usenet-admin@Berkeley Does anyone out there have or know of a means of converting impress print files to PostScript? Please reply by mail. Thanks, Patricia Thompson Patricia Thompson, U.T. Computation Center, Austin, Texas 78712 ARPA: patricia@ngp.UTEXAS.EDU UUCP: ihnp4!ut-ngp!patricia allegra!ut-ngp!patricia gatech!ut-ngp!patricia seismo!ut-sally!patricia harvard!ut-sally!patricia ------------------------------ Date: 10 Sep 85 01:19:34 GMT From: decwrl!turtlevax!ken@Berkeley (Ken Turkowski) Organization: CADLINC, Inc. @ Menlo Park, CA Subject: Re: Info-Graphics Digest References: <8509081904.AA11574@UCB-VAX.ARPA> Errors-To: usenet-admin@Berkeley In article <8509081904.AA11574@UCB-VAX.ARPA> Info-Graphics@AIDS-Unix writes: ... Do we really need to see these articles twice? Once in net.graphics and once again from the ARPA mailing list? Only 2 (11%) out of the 18 articles were supposedly generated on ARPANET sites, while the other 16 (89%) were generated on USENET. Net.graphics has been running pretty much autonomously without info- graphics. Why does info-graphics now need to be gatewayed back to us? -- Ken Turkowski @ CADLINC, Menlo Park, CA UUCP: {amd,decwrl,hplabs,seismo,spar}!turtlevax!ken ARPA: turtlevax!ken@DECWRL.ARPA ------------------------------ Date: 10 Sep 85 16:59:24 GMT From: decwrl!turtlevax!ken@Berkeley (Ken Turkowski) Organization: CADLINC, Inc. @ Menlo Park, CA Subject: Re: Object Descriptions Wanted References: <1074@sdcsvax.UUCP>, <302@gcc-bill.ARPA>, <285@uwvax.UUCP> Errors-To: usenet-admin@Berkeley In article <285@uwvax.UUCP> derek@uwvax.UUCP (Derek Zahn) writes: >> Could some kind soul out there in pixel-land send me an object >> description or two, in machine readable form? I'm looking for some >> three-D... > I hate to sound stupid, but what does that mean? > Object descriptions? (you mean spheres, the statue of liberty, > or what?) Yes. All of the above and then some. > Machine readable form? Is there some standard machine-readable form I > never noticed? As opposed to a paper listing, orthogonal views, or a picture in perspective. -- Ken Turkowski @ CADLINC, Menlo Park, CA UUCP: {amd,decwrl,hplabs,seismo,spar}!turtlevax!ken ARPA: turtlevax!ken@DECWRL.ARPA ------------------------------ Date: 10 Sep 85 07:24:37 GMT From: tektronix!reed!johnw@Berkeley (John Windberg) Organization: Reed College, Portland, Oregon Subject: Tandy 2000 MS-dos Pascal References: <10571@rochester.UUCP>, <833@turtlevax.UUCP> Errors-To: usenet-admin@Berkeley This looked like as good as any a place to put this note. I am searching for a graphics package for the Tandy 2000's MS-dos PASCAL. Either info or even routines needed to switch screens and set pixels will set me on the right track. I prefer pascal for my science related graphics and have found that no-one knows how to get the Radio Shack machine to do graphics in anything but BASIC. Thanks in advance. P.S. yes I did put a notice in net.trs-80. ------------------------------ Date: 11 Sep 85 01:58:32 GMT From: harpo!whuxlm!whuxl!houxm!mtuxo!mtuxt!dak2@Berkeley (D.KALL) Organization: AT&T Information Systems, Holmdel NJ Subject: RE: computer vision newsgroup Errors-To: usenet-admin@Berkeley Yes David I agree. One vote for. Who do we contact to get one? ------------------------------ Date: Wed, 11 Sep 85 15:56:37 pdt From: stephan@AMES-NAS.ARPA (Stephan Keith) Subject: Bay Area SIGGRAPH San Francisco Bay Area SIGGRAPH Meeting Announcement What: Commercial Animation Production Who: Carl Rosendahl, Pacific Data Images Where: The Exploratorium, Place of Fine Arts, San Francisco When: Tuesday, 24 September 1985, 8:00 pm Doors open at 7:30 pm Abstract: Carl Rosendahl will give an overview of the animation production process. A specific job will be followed through from conception to final delivery as a vehicle for discussion of the different phases of production and the different tools used. The basic steps of production which will be covered include: concepting and storyboarding, modeling, motion design, lighting and coloring, test shots, rendering, recording and post production. Carl will assume a familiarity with general computer graphics terms and techniques. The focus will be on how PDI applied these ideas and others to commercial production. The talk will be very visual, with slides and 3/4" tape as support materials. Carl also encourages the audience to ask questions during the talk, which will give him a better opportunity to focus in on the specific interests of the group, rather than try to guess them. The talk will be between one and one and a half hours long. Biography: Carl Rosendahl, President of Pacific Data Images, started his organization in August, 1980. He graduated with a degree in Electrical Engineering from Stanford University in 1979 and worked in Silicon Valley for 9 months before leaving to start PDI. He is an active member in ACM SIGGRAPH, the Broadcast Designer's Association and the Ad Club of San Francisco. In addition to his presidential duties, Carl remains actively involved in animation. Some of Carl's credits include the Emmy award winning M Patterns for MTV, the opening for Entertainment Tonight, and the Sarajevo and Los Angeles Olympic Patch animations for ABC Sports. Future Events - 1985 (Subject to Change) Month Person Place Subject September 24 Carl Rosenthal Exploratorium Commercial Animation October 22 Jim Clark SLAC Computation Geometry November 19 or 26 Film Show TBD TBD December ------------------------------ From: decvax!cca!datacube!shep@Berkeley Date: 7 Sep 85 16:55:00 GMT Subject: Hitachi 63484 Graphics Controller Precedence: junk Errors-To: usenet@Berkeley Has anyone used the Hitachi HD63484 chip? It appears to be a lot more flexible than last generation's 7220s and clones. The chip is an "Advanced CRT controller" (read Graphics controller) with some powerful primatives. I have Hitachi's #U75 handbook on the part; which I take to be the sole reference. I would like to interchange questions with other (potential) users of the part. Shep Siegel UUCP: ihnp4!datacube!shep Datacube Inc.; 4 Dearborn Rd.; Peabody, Ma. 01960; 617-535-6644 ------------------------------ Date: 11 Sep 85 18:28:19 GMT From: decvax!genrad!panda!talcott!harvard!seismo!ut-sally!oakhill!mot!mulbery@Berkeley (Bill Mulberry) Organization: Motorola Microsystems, Phoenix AZ Subject: fractal dragon Precedence: junk Errors-To: usenet@Berkeley I have come up with an algorithm that creates the self-squared fractal dragon that appears on the cover of Mandlebrot's book, Fractal Geometry of Nature. It is a simple algorithm. However, if I interpret his ideas on the segment colors correctly, that part is not so simple. In following his idea, I have come up with a scheme that seems to work but involves some complicated numerical analysis. Like the Mandlebrot set, this set is extremely computationally intensive. Has anybody out there tried this out? And if so, is there a MUCH SIMPLER method for determining the segment colors? -- ------------------------------------ Bill Mulberry @ Motorola Microsystems, Tempe, AZ U.S.A. UUCP: {seismo!terak, trwrb!flkvax, utzoo!mnetor, ihnp4!btlunix}!mot!mulbery ARPA: oakhill!mot!mulbery@ut-sally.ARPA AT&T: 602-438-3039 ------------------------------------- ------------------------------ Date: 12 Sep 85 04:43:00 GMT From: decvax!cca!reiner@Berkeley (David Reiner) Organization: Computer Corp. of America, Cambridge Subject: PC/AT as graphics-oriented support environment Precedence: junk Errors-To: usenet@Berkeley I may be dreaming, but does a combination graphics/operating system/windowing system environment exist for the IBM PC/AT (perhaps with added chips, or display unit) which provides all or most of: A unix-like development environment (unix tools) A run-time environment with virtual memory A windowing system supporting multiple graphics-oriented windows (preferably overlapping, but tiling acceptable) Monochrome graphics with 800 x 800 resolution (more or less) PC/DOS compatibility (??) A migration path to IBM's rumored RISC-based workstation or other successor to the PC/AT (??) It seems like this would be a fairly common wish-list for anyone looking to develop graphics-oriented design support tools on an AT (whether the target area is systems analysis, CAD/CAM, entity-relationship modelling, or whatever). I'm interested in any comments on the current (or future) feasibility of this combination of features, or on experiences people have had in similar environments. Responses will be summarized to the net... Dave Reiner reiner@cca decvax!cca!reiner Computer Corporation of America 4 Cambridge Ctr Cambridge, MA 02142 (617)-492-8860 ------------------------------ Date: 13 Sep 85 18:19:06 GMT From: decwrl!myee@cashew.DEC@Berkeley (Michael K. Yee - DTN 231-4166) Organization: Digital Equipment Corporation Subject: New to Newsgroups... Precedence: junk Errors-To: usenet@Berkeley Please put me on the mailing list for the newsgroup for graphics. My address is !decwrl!dec-rhea!dec-cashew!myee Posted: Fri 13-Sep-1985 14:18 EDT ------------------------------ Date: 13 Sep 85 16:13:59 GMT From: dual!ames!eugene@Berkeley (Eugene Miya) Organization: NASA-Ames Research Center, Mtn. View, CA Subject: Foreign Language Technical Material Precedence: junk Errors-To: usenet@Berkeley Lately, there have been significant technical advances from non-English speaking countries: Japan and the Continent. How many know the Japanese equivalent to the CACM? What is the German equivalent of the IEEE? It is too easy to say that such organizations and publications are not significant. We have been accused of parochialism. Our problems in the computer industry are rather unique as colleagues in other fields such as nuclear fusion report that most of their colleagues are, for all practical purposes, forced to come to the U.S. This is not the case with computing Just as we have file servers and process servers, we have a distributed system. Our greatest resource are not the machines, but the people with special skills. To this end I propose the following: Propose: 1) to identify individuals who are capable of providing simple translation. It would help if the Universities could do this, but languages requirements in most graduate CS and EE programs has been dropped. Perhaps, Universities could get assistance from foreign language departments. 2) Identify various foreign language publications of technical interest. Quickly identify articles of wide interest. This information could be posted to general interest Usenet newsgroups such as net.research and net.mag as well as the special interest groups such as the AI List, net.lang, and so forth. We should not create news grops, but work on top of existing groups. 3) Help fund subscription and translations. Perhaps, individuals without technical translation expertise can get together to pay for technical translations [commercial], and/or help fund the subscription of those with technical translation expertise. This information could be posted to the standard news groups addressed above. Dymond@nbs-vms.ARPA has started an info-japan and a nihongo discussion group on the ARPAnet, but it would be difficult to get Usenet participation. I specfically do not want to create new newsgroups. This structure can be placed atop the existing new group structure. It appears our most critical needs are in the Eastern Asian languages such as Japanese, Korean, and Chinese. Other useful work would include French, German, and the other European languages. We have to look to the Universities for much of our assistance, but private organizations and government can also help. We can certainly make inquires. The Usenet extends into Japan, France, and other non-English native countries. We must take benefit of these contributors. Similarly, we can contribute to these countries by tagging significant English language documents. I am willing to act as a clearing house for determining finding individuals and groups, and specific journals. For this purpose, I am giving my address an ARPA, uucp gateway. Send the mail inquires there. More in a couple of weeks. ------------------------------ --eugene miya NASA Ames Research Center {hplabs,ihnp4,dual,hao,decwrl,allegra}!ames!amelia!eugene eugene@ames-nas ------------------------------ Date: 13 Sep 85 21:17:16 GMT From: ucdavis!lll-crg!seismo!mcvax!cernvax!ethz!prl@Berkeley (Peter Lamb) Organization: CS Department, ETH Zuerich, Switzerland Subject: GKS for UNIX 4.2 Precedence: junk Errors-To: usenet@Berkeley Does anyone have a GKS implementation for 4.2BSD? Please reply by mail to {seismo|decvax}!mcvax!cernvax!ethz!prl Thanks Peter Lamb Institut fur Informatik ETH 8092 Zurich Switzerland ------------------------------ Date: 13 Sep 85 18:11:23 GMT From: ucdavis!lll-crg!gymble!umcp-cs!seismo!ut-sally!oakhill!mot!mulbery@Berkeley (Bill Mulberry) Organization: Motorola Microsystems, Phoenix AZ Subject: paper topics Precedence: junk Errors-To: usenet@Berkeley HELP!! I have to do a paper for a class dealing with a subject in either image processing or computer vision. The paper has to be about that subject as well as what current research is going on in that area. If anybody out there is involved in these areas, I would appreciate if they could tell me about some subjects that would be a good topic as well as sources to look up, references, etc. Some topics I have considered are: 1. time - varying imagery 2. stereopsis and surface reconstruction 3. satellite imagery Any ideas for references for these topics. Thanks. -- ------------------------------------ Bill Mulberry @ Motorola Microsystems, Tempe, AZ U.S.A. UUCP: {seismo!terak, trwrb!flkvax, utzoo!mnetor, ihnp4!btlunix}!mot!mulbery ARPA: oakhill!mot!mulbery@ut-sally.ARPA AT&T: 602-438-3039 ------------------------------------- ------------------------------ From: unmvax!nmtvax!allan@Berkeley Date: 12 Sep 85 21:40:31 GMT Organization: New Mexico Tech, Socorro Subject: Need information on a graphics tablet Precedence: junk Errors-To: usenet@Berkeley *** REPLACE THIS LINE WITH THE TIME OF DAY *** I have a Vector General Data Tablet and no manual to go with it. This makes it very hard for me to figure out how to use the silly thing. The serial (model) number is 001. I have tried writing to Vector General using the address on the Tablet, but the poor postman in Canoga Park could not figure out what to with the request and returned it to me. Can anyone out there help me? Allan F. Perry ...lanl!unm-cvax!nmtvax!allan ------------------------------ End of INFO-GRAPHICS ******************** Brought to you by Super Global Mega Corp .com