January 2000 - Ag-tech - mailman3.cels.anl.gov

Re: January 27 AG Reservation
by Jeff Ramacher 25 Jan '00

25 Jan '00

That's 12pm central time! Thanks! Jeff Ramacher wrote: > > I need to schedule access to the bridge for an Access Grid conference > with ACCESS DC (Tom Coffin) and UNM (John Greenfield) at 8:00am Hawaii > Standard Time (4pm central I believe). > > Thanks in advance. > -- > Jeff Ramacher (jeffr(a)mhpcc.edu) | (808) 879-5077, x264 > Maui High Performance Computing Center (MHPCC) | fax (808) 879-5018 > | http://www.mhpcc.edu

1 0

January 27 AG Reservation
by Jeff Ramacher 25 Jan '00

25 Jan '00

I need to schedule access to the bridge for an Access Grid conference with ACCESS DC (Tom Coffin) and UNM (John Greenfield) at 8:00am Hawaii Standard Time (4pm central I believe). Thanks in advance. -- Jeff Ramacher (jeffr(a)mhpcc.edu) | (808) 879-5077, x264 Maui High Performance Computing Center (MHPCC) | fax (808) 879-5018 | http://www.mhpcc.edu

1 0

Fwd: February 8 Access Grid reservation
by Jim Farrar 25 Jan '00

25 Jan '00

> >I willl need to reserve the Access Grid on February 8 for a visualization >talk with Access DC at the Ballston Center.Prof. Donna Cox will be >presenting from NCSA in Urbana, Illinois. Do not have a firm time yet but >will soon.

1 0

AG Reservation Jan 24
by John A. Greenfield 21 Jan '00

21 Jan '00

UNM needs to schedule a demo at 4PM Central time (3 PM Mountain) on Jan 24 for the SW AIHEC tribal college presidents. Participation of other sites would be most appreciated ************************************************************** John Greenfield green(a)arc.unm.edu University of New Mexico THE ALBUQUERQUE HIGH PERFORMANCE COMPUTING CENTER Office # 505-277-8249 Direct # 505-277-9545 Fax # 505-277-8235 **************************************************************

1 0

interlacing discussion ...
by Robert Olson 12 Jan '00

12 Jan '00

from video4linux list. interesting thing; old sony digital camera with video output doesn't have interlacing artifacts... >Resent-Date: 12 Jan 2000 21:02:10 -0000 >Resent-Cc: recipient list not shown: ; >MBOX-Line: From video4linux-list-request(a)redhat.com Wed Jan 12 16:02:09 2000 >X-Authentication-Warning: xyzzy.dsl.speakeasy.net: xyzzy owned process doing >-bs >Date: Wed, 12 Jan 2000 13:02:02 -0800 (PST) >From: Trent Piepho <xyzzy(a)speakeasy.org> >X-Sender: xyzzy(a)xyzzy.dsl.speakeasy.net >To: video4linux-list(a)redhat.com >Subject: Re: Matrox Meteor II driver project? >In-Reply-To: <200001122042.PAA23848(a)devserv.devel.redhat.com> >Message-ID: <Pine.LNX.4.04.10001121258001.27254-100000(a)xyzzy.dsl.speakeasy.net> >MIME-Version: 1.0 >Content-Type: TEXT/PLAIN; charset=US-ASCII >Resent-Message-ID: <"ycfpf1.0.yp5.HlEVu"@lists.redhat.com> >Resent-From: video4linux-list(a)redhat.com >Reply-To: video4linux-list(a)redhat.com >X-Mailing-List: <video4linux-list(a)redhat.com> archive/latest/901 >X-Loop: video4linux-list(a)redhat.com >Precedence: list >Resent-Sender: video4linux-list-request(a)redhat.com >X-URL: http://www.redhat.com > >On Wed, 12 Jan 2000, Alan Cox wrote: >> > NetWinder (www.netwinder.org) that has Philips SAA7111 shows exactly the >> > same type of >> > distortions (runs Linux) during capturing dynamic videos which leads me to >> > believe it's common >> > problem for low-cost capture boards. >> >> Your monitor displays at 60-100hz (hopefully 72+). The incoming TV signal >> is 25fps and interlaced. You need to do extra bufffering and burn CPU time >> and memory to do good delacing, or find a card that has big buffers. >> >> This isnt a _capture_ artefact its a viewing artefact > >Sure it is. You can see interlacing artifacts just fine on still single frame >captures. Take a look at http://xyzzy.dsl.speakeasy.net/~xyzzy/test.jpg, you >can see the interlacing artifacts perfectly on the scrolling stock ticker on >the bottom of the screen. > > >-- > To unsubscribe: mail video4linux-list-request(a)redhat.com with > "unsubscribe" as the Subject. >Resent-Date: 12 Jan 2000 21:12:35 -0000 >Resent-Cc: recipient list not shown: ; >MBOX-Line: From video4linux-list-request(a)redhat.com Wed Jan 12 16:12:34 2000 >Message-ID: <387CEE06.3E0FFEFC(a)osprey.viewcast.com> >Date: Wed, 12 Jan 2000 16:11:34 -0500 >From: H Brett Bolen <brettb(a)osprey.viewcast.com> >Reply-To: brettb(a)osprey.viewcast.com >Organization: ViewCast.com >X-Mailer: Mozilla 4.7 [en] (WinNT; I) >X-Accept-Language: en >MIME-Version: 1.0 >To: video4linux-list(a)redhat.com >Subject: Re: Matrox Meteor II driver project? >References: <Pine.LNX.4.04.10001121258001.27254-100000(a)xyzzy.dsl.speakeasy.net> >Content-Type: text/plain; charset=iso-8859-1 >Content-Transfer-Encoding: 8bit >Resent-Message-ID: <"xh2pG3.0.yA7.2vEVu"@lists.redhat.com> >Resent-From: video4linux-list(a)redhat.com >X-Mailing-List: <video4linux-list(a)redhat.com> archive/latest/903 >X-Loop: video4linux-list(a)redhat.com >Precedence: list >Resent-Sender: video4linux-list-request(a)redhat.com >X-URL: http://www.redhat.com > >Broadcast sources are interlaced. When you view a single >frame on a video monitor you are really seeing two frames >which are separated in time by 15 or 20 milliseconds. > >If an edge moves a noticeable amount then you will have the zigzag >effect. This has nothing to do with the capture, it is in the >source. > >One way to get rid of the effect is to capture 320x240 instead >of 640x480. another is to capture 640x240 and to 'double' >each of the 240 lines so that there are 480 lines. > >The problem is not with capture, but with the source. This >is why there is so much discussion about the quality of >720p vs 1020i on the HDTV boards ( interlaced vs progressive >scan ). > >i is bad...... p is good..... > >bï¿½ > >Trent Piepho wrote: >> >> On Wed, 12 Jan 2000, Alan Cox wrote: >> > > NetWinder (www.netwinder.org) that has Philips SAA7111 shows exactly the >> > > same type of >> > > distortions (runs Linux) during capturing dynamic videos which leads >me to >> > > believe it's common >> > > problem for low-cost capture boards. >> > >> > Your monitor displays at 60-100hz (hopefully 72+). The incoming TV signal >> > is 25fps and interlaced. You need to do extra bufffering and burn CPU time >> > and memory to do good delacing, or find a card that has big buffers. >> > >> > This isnt a _capture_ artefact its a viewing artefact >> >> Sure it is. You can see interlacing artifacts just fine on still single >frame >> captures. Take a look at http://xyzzy.dsl.speakeasy.net/~xyzzy/test.jpg, you >> can see the interlacing artifacts perfectly on the scrolling stock ticker on >> the bottom of the screen. >> >> -- >> To unsubscribe: mail video4linux-list-request(a)redhat.com with >> "unsubscribe" as the Subject. > > >-- > To unsubscribe: mail video4linux-list-request(a)redhat.com with > "unsubscribe" as the Subject.

1 0

January 21
by Tom Coffin 12 Jan '00

12 Jan '00

Please reserve the Access Grid for: January 21, 2000 1:00 p.m. to 3:00 p.m. E ___________________________________________________________ Tom Coffin .......................... tcoffin(a)ncsa.uiuc.edu

1 0

Re: Video Conf. Task Force (fwd)
by Daniel Sandin 12 Jan '00

12 Jan '00

Hi. At The end of the month ( during SPIE) I will be having meetings with engineers at Pinnacle to evaluate using the 3000 series PCI card as a multi stream encoder decoder to do mpeg, jpeg or DVcam-DVpro. The concept is to hardware accelerate VIC. Since there is software to be developed, the earliest this solution could be applied is in the summer of 00 . I am also interested in getting pointer to encoder-decoder boxes. At 12:10 PM 1/11/00 -0600, Rick Stevens wrote: >Do we have specs on these MPEG-2 systems ? > >---------- Forwarded message ---------- >Date: Tue, 11 Jan 2000 11:36:11 -0500 >From: "W. R. Wing" <wrw(a)cosmail1.ctd.ornl.gov> >To: escc(a)es.net >Cc: ESSC(a)es.net, wrw(a)ornl.gov >Subject: Video Conf. Task Force > >I like to put out a call for interested volunteers who could >contribute time (and potentially direct some local equipment dollars) >to exploring the current generation of video conferencing gear. > >We are all aware (painfully aware) of the capabilities of H.320 based >video conferencing solutions. The limitations are real, substantial, >and frequently impede the conduct of business. > >In the meanwhile, a new generation of gear from companies like >Minerva and Polycom is arriving on the scene. These boxes are able >to generate very high quality video (MPEG-2 quality in the case of >the Minerva) in real time, packetize this stream into IP (point to >point or multicast) and potentially serve as a relief valve for some >of the travel restrictions we all find ourselves dealing with. > >Some of these systems can chew up a lot of network bandwidth (up to 8 >Mbs in each direction) but in the context of ESnet3, this may be less >of a problem than in the past. > >If you are interested, and particularly if your site is interested, >please let me know. > > > Bill > > >William R. Wing wrw(a)ornl.gov 423-574-8839 >Network Architect for the Oak Ridge National Lab Daniel J. Sandin Director, Electronic Visualization Laboratory (M/C 154) The University of Illinois at Chicago 851 S. Morgan St. Rm 1120 SEO Chicago IL 60607-7053 ph) 312-996-3002 fax) 312-413-7585 URL) http://www.evl.uic.edu URL)http://www.evl.uic.edu/dan dan(a)uic.edu

1 0

Fwd: Class via H.323 (fwd)
by Rick Stevens 11 Jan '00

11 Jan '00

---------- Forwarded message ---------- Date: Mon, 10 Jan 2000 22:41:28 -0600 From: Robert Olson <olson(a)mcs.anl.gov> To: fl-core(a)mcs.anl.gov Subject: Fwd: Class via H.323 >X-Sender: amiot(a)daisy.re.anl.gov >X-Mailer: Windows Eudora Pro Version 2.2 (32) >Date: Mon, 10 Jan 2000 22:33:17 -0600 >To: cic-cio(a)cic.net, cic_video(a)anl.gov >From: Larry Amiot <amiot(a)anl.gov> >Subject: Class via H.323 >Cc: rdixon(a)stargate.uts.ohio-state.edu, nosh(a)uiuc.edu > >A historic event occurred this evening. The first class was taught using >H.323 technology on the CIC purchased Multipoint Control Units located at >OSU. A graduate seminar -spearheaded by Nosh Contractor of the UIUC- on >"Communication Technologies and New Forms of Organizing" (the class has a >slightly different name at different universities) was co-taught by the >University of California at Santa Barbara, the University of Illinois at >Urbana-Champaign, and the University of Southern California at Los Angeles. >A class at Purdue University also participated. > >The class lasted from 4:00pm to 7:00pm CST. Each of the four sites used >Polycom H.323 stations. I set up the MCU's located at OSU remotely from my >Argonne site, and I passively monitored the conference using both Zydacron >(I used this station to record the class) and VCON H.323 stations. A seventh >station was set up at UIUC where the class was broadcast using RealVideo >technology. The communication was entirely over the Internet with >conferences using 384Kbps encoding (768Kbps full duplex). That required the >OSU site to support eight times 768Kbps of bandwidth). > > From a technical viewpoint, the technology worked well with only a couple of >minor problems. One site had poor quality audio (I think that was a local >microphone pickup problem), and we had the MCU crash once which required me >to restart it remotely. The other sites had good audio quality, and the >quality of the video was very good at all sites. The voice switching >capability of the MCU seemed to work well in the multiple classroom >environment. All sites are now learning how to best control their cameras >and microphones. > >We plan to archive the RealVideo recorded at UIUC, and I recorded the entire >class on VHS tape. I plan to have it encoded in MPEG1 and made available on >the VideoCharger located at Argonne. The class will continue on Monday >evenings in to the beginning of May. Since the UIUC classes have not >actually started yet, only Nosh Contractor appeared at the UIUC site. Thus, >the archived video will be important for his class to catch up with what >happened in this first class.....Larry > >***************************************** >Larry Amiot * >Visiting Senior Research Scientist * >Committee on Institutional Cooperation * >With an office at * >Argonne National Laboratory * >9700 South Cass Avenue * >Argonne, Illinois 60439 * >amiot(a)anl.gov * >630 252 5432 * >*****************************************

1 0

Video Conf. Task Force (fwd)
by Rick Stevens 11 Jan '00

11 Jan '00

Do we have specs on these MPEG-2 systems ? ---------- Forwarded message ---------- Date: Tue, 11 Jan 2000 11:36:11 -0500 From: "W. R. Wing" <wrw(a)cosmail1.ctd.ornl.gov> To: escc(a)es.net Cc: ESSC(a)es.net, wrw(a)ornl.gov Subject: Video Conf. Task Force I like to put out a call for interested volunteers who could contribute time (and potentially direct some local equipment dollars) to exploring the current generation of video conferencing gear. We are all aware (painfully aware) of the capabilities of H.320 based video conferencing solutions. The limitations are real, substantial, and frequently impede the conduct of business. In the meanwhile, a new generation of gear from companies like Minerva and Polycom is arriving on the scene. These boxes are able to generate very high quality video (MPEG-2 quality in the case of the Minerva) in real time, packetize this stream into IP (point to point or multicast) and potentially serve as a relief valve for some of the travel restrictions we all find ourselves dealing with. Some of these systems can chew up a lot of network bandwidth (up to 8 Mbs in each direction) but in the context of ESnet3, this may be less of a problem than in the past. If you are interested, and particularly if your site is interested, please let me know. Bill William R. Wing wrw(a)ornl.gov 423-574-8839 Network Architect for the Oak Ridge National Lab

1 0

Just in case you missed the slashdot article...
by Richard Coffey 09 Jan '00

09 Jan '00

http://slashdot.org/articles/00/01/09/0854200.shtml Cheers, Richard ;-)

1 0