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Terry Disz wrote:<br>
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<div class="Section1">
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">Tom,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">I am not
sure what you mean. Last time I
saw the VIDE <span class="GramE">folks,</span> the vast majority were
doing h.323
systems delivering a single h.261 encoded stream, the same codec we
use. </span></font></p>
</div>
</blockquote>
Polycom and Radvision are doing h.263. Todd Needham from Microsoft
showed me their conference xp client doing 640x480 using windows media
codecs. The telesuite people are doing h.264. I've been under the
impression that the h323 folks were generally using h263; maybe that's
not true.<br>
<blockquote type="cite"
cite="mid000c01c4134a$1a4ba810$250bdd8c@redhaven">
<div class="Section1">
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">So, in
terms of video pixels delivered to the user, we far outpace those
systems. As
far as individual streams - can’t we improve our h.261 streams to look
as
good as the ones delivered by the commercial vendors?</span></font></p>
</div>
</blockquote>
I've heard you guys talk about better quality h261 encoders from
commercial sources, but the resolution is still lower, right? <br>
<blockquote type="cite"
cite="mid000c01c4134a$1a4ba810$250bdd8c@redhaven">
<div class="Section1">
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p>If
some are using h.263 or something approaching
NTSC, can you tell how many people are using this?</span></font></p>
</div>
</blockquote>
I have no idea.<br>
<blockquote type="cite"
cite="mid000c01c4134a$1a4ba810$250bdd8c@redhaven">
<div class="Section1">
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p>What
does pushing on HD and DV mean? Is
there a roadmap from them for getting these in use? What do the vendors
say
about that?</span></font></p>
</div>
</blockquote>
Internet2 and ResearchChannel were demonstrating HD and DV,
respectively (or more accurately, showcasing it). I expect their
slides to show up on the conference website before long, and hopefully
they'll answer these questions.<br>
<blockquote type="cite"
cite="mid000c01c4134a$1a4ba810$250bdd8c@redhaven">
<div class="Section1">
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p>I
see Bob and Ivan have already addressed
our options for better video, but I am just wondering how much better,
how soon,
how many of our users would upgrade facilities to obtain it – which I
understand is a different question than advertising that we can deliver
high
quality video.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">I am
wondering if anyone has any pointers
to show how much better the video conferencing experience is with
varying
quality video streams and varying numbers of <span class="GramE">streams?</span><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">Terry<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" color="navy" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p style="margin-left: 0.5in;" class="MsoNormal"><font face="Tahoma"
color="black" size="2"><span
style="font-size: 10pt; font-family: Tahoma; color: windowtext;">-----Original
Message-----<br>
<b><span style="font-weight: bold;">From:</span></b>
<a class="moz-txt-link-abbreviated" href="mailto:owner-ag-dev@mcs.anl.gov">owner-ag-dev@mcs.anl.gov</a>
[<a class="moz-txt-link-freetext" href="mailto:owner-ag-dev@mcs.anl.gov">mailto:owner-ag-dev@mcs.anl.gov</a>] <b><span style="font-weight: bold;">On
Behalf
Of </span></b>Thomas D. Uram<br>
<b><span style="font-weight: bold;">Sent:</span></b> Friday, March
26, 2004 7:51
AM<br>
<b><span style="font-weight: bold;">To:</span></b> Rick Stevens<br>
<b><span style="font-weight: bold;">Cc:</span></b> <a class="moz-txt-link-abbreviated" href="mailto:ag-dev@mcs.anl.gov">ag-dev@mcs.anl.gov</a><br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: Notes
from Sura/ViDe</span></font></p>
<p style="margin-left: 0.5in;" class="MsoNormal"><font
face="Times New Roman" color="black" size="3"><span
style="font-size: 12pt;"><o:p> </o:p></span></font></p>
<p style="margin-left: 0.5in;" class="MsoNormal"><font
face="Times New Roman" color="black" size="3"><span
style="font-size: 12pt;">I mean in terms of
resolution. NTSC is more common, and they are--like us--pushing on HD
and
DV. <br>
<br>
Rick Stevens wrote:<br style="">
<!--[if !supportLineBreakNewLine]--><br style="">
<!--[endif]--><o:p></o:p></span></font></p>
<pre wrap="" style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">what do yo umean outpaces ours ?<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">On Fri, 26 Mar 2004, Thomas D. Uram wrote:<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><span style=""> </span><o:p></o:p></span></font></pre>
<blockquote type="cite" style="margin-top: 5pt; margin-bottom: 5pt;">
<pre wrap="" style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">Here are some notes from the Sura/ViDe conference.<span
style=""> </span>Overall I think <o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">these people are concerned with a different set of requirements than we <o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">are, particularly casual one-to-one media-only conferencing.<span
style=""> </span>They are <o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">becoming more interested in data collaboration, which brings them closer <o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">to us.<span
style=""> </span>Their video generally outpaces ours, which requires us to play <o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">catch-up.<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">I missed a couple of promising sessions because they coincided with the <o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">AG/Multicast session:<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><span style=""> </span>Digital Video in Library and Archives<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><span style=""> </span>Extreme Video<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">I expect slides will be available online before long at:<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><span style=""> </span><a
href="http://www.vide.net/conferences/spr2004/program.shtml">http://www.vide.net/conferences/spr2004/program.shtml</a><o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;">Tom<o:p></o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><span style=""> </span><o:p></o:p></span></font></pre>
</blockquote>
<pre wrap="" style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre style="margin-left: 0.5in;"><font face="Courier New"
color="black" size="2"><span style="font-size: 10pt;"><span style=""> </span><o:p></o:p></span></font></pre>
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