[AG-TECH] HDAG

[Brian Corrie]

All,

A very interesting topic, we are also interested in higher quality video as
well as higher fidelity application sharing (3D models etc).

Bring on the discussion - it would be great to have an AG meeting on this...

Cheers,

	Brian


> -----Original Message-----
> From: Luc Renambot [mailto:renambot at cs.vu.nl]
> Sent: Friday, August 30, 2002 5:31 AM
> To: ag-tech at mcs.anl.gov
> Subject: RE: [AG-TECH] HDAG
> 
> 
> Interesting topic ! I'd would be interested in some discussion.
> 
> Few thoughts:
>   - few people seems to use RTPtv (over internet2 I think)
>      Hardware + Software solution, integrated in OM vic,
>      for full D1 over IP.
>   - More and more video players start support some form 
>     of RTP (Mplayer, VLC from videolan). They also use
>     "modern" codecs (divx, mpeg4,...), and are open-source.
>   - How to do 3D graphics: 3D api or pixels/video streaming
>   - ...
> 
> Luc.
> 
> ] -----Original Message-----
> ] From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov]On
> ] Behalf Of Osland, CD (Chris) 
> ] Sent: Friday, August 30, 2002 14:06
> ] To: 'Sascha Ignjatovic'; ag-tech at mcs.anl.gov
> ] Subject: RE: [AG-TECH] HDAG
> ] 
> ] 
> ] I've just had a long chat, by phone, with Sascha.  His interest
> ] is, as he says, mainly in getting high quality stored media such
> ] as DVD quality video over the Internet, but is also interested
> ] in aspects of this that relate to AG.  He is hoping to get an AG
> ] built at his institute.
> ] 
> ] It appears to me that a number of requirements are covered by the
> ] term 'High Definition Access Grid':
> ] 
> ] 	for camera sources or external analogue sources ...
> ] 		better than CIF image compression (e.g. full PAL or NTSC
> ] 		rather than sampled down to half in X and half in Y)
> ] 
> ] 		higher frame rates at CIF and better resolution (e.g. up
> ] 		to what would be needed to lip read)
> ] 
> ] 		capture of resolutions higher than PAL/NTSC (e.g. using
> ] 		the card mentioned at the AG Retreat - I'll look at the
> ] 		CD-ROM of the proceedings to get more details)
> ] 
> ] 	for internal digital sources (e.g. computer application) ...
> ] 		higher bandwidth allowing things like VNC to work
> ] 		closer to real-time while still loss-less
> ] 
> ] 		better ability to control trade-off between spatial
> ] 		resolution (compression) and frame rate in 
> things like VNC
> ] 
> ] 	for external digital sources (e.g. DVD)
> ] 		mechanisms that make it worthwhile having such sources,
> ] 		i.e. that provide better results at remote sites than
> ] 		the same sources captured and relayed as 
> analogue signals
> ] 
> ] 		multi-channel sound
> ] 
> ] Some of these may already be available in VIC, RAT and VNC 
> but do not
> ] appear to be used by the AG community.  In at least one case while
> ] we were testing with Belfast, they switched VIC to a higher
> ] (spatial) resolution on the fly and every connected site's Display
> ] system crashed instantly!
> ] 
> ] If there are others who would (a) like to experiment with the
> ] existing tools to see what already works, (b) continue airing
> ] this topic in ag-tech, and (c) maybe occasionally meet over the
> ] AG to discuss ways forward, that would be good.
> ] 
> ] Cheers
> ] 
> ] Chris Osland
> ] 
> ] ____________________________________________________________________
> ] Chris Osland                         Office tel: +44 (0) 1235 446565
> ] Digital Media and Access Grid      Medialab tel: +44 (0) 1235 446459
> ] BIT Department             Access Grid room tel: +44 (0) 1235 445666
> ] e-mail:   C.D.Osland at rl.ac.uk               Fax: +44 (0) 1235 445597
> ] 
> ] CLRC Rutherford Appleton Laboratory (Bldg. R18)
> ] Chilton, DIDCOT, Oxon OX11 0QX, UK
> ] 
> ] [The contents of this email are confidential and 
> ] are for the use of the intended recipient only.
> ] If you are not the intended recipient do not take 
> ] any action on it or show it to anyone else,
> ] but return this email to the sender and delete your copy of it.]
> ] 
> ] 
> ] 
> ] 
> ] 
> ] -----Original Message-----
> ] From: Sascha Ignjatovic [mailto:sascha at chello.at]
> ] Sent: 12 August 2002 11:45
> ] To: ag-tech at mcs.anl.gov
> ] Subject: [AG-TECH] HDAG
> ] 
> ] 
> ] hi my name is sascha from vienna austria..
> ] 
> ] i am very interested in access grid and starting in september
> ] we will try to build one at the technical university of vienna
> ] 
> ] thank you all for your work in developing and aplying this
> ] cool and future technologie...
> ] 
> ] i am not a technical person as i am more  into aplications..
> ] 
> ] so hier i have a question...
> ] 
> ] john shalf from lbl told me that there is already the
> ] "next big thing" the
> ] 
> ] HIGH DEFINITION ACCESS GRID
> ] 
> ] i wrote to rick stevens got not a replay so far..
> ] 
> ] becouse i am little inpatient :-) now i am humbly asking the list..
> ] 
> ] if there is any information already available on the HDAG
> ] i would apreciate it very much...!!
> ] 
> ] thanks
> ] sascha
> ] 
> ] 
>