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<p class=MsoNormal><i><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-style:italic'>= Apologies for
cross-posting =<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>"Rapid 3D
scene modelling from video clips" </span></font></b><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>William Clocksin, <st1:place w:st="on"><st1:City
w:st="on">Oxford Brookes University</st1:City> <st1:country-region w:st="on">UK</st1:country-region></st1:place><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>Friday 30th
November 2007, 2-3pm GMT Room 1.10, <st1:PlaceName w:st="on">Kilburn</st1:PlaceName>
<st1:PlaceType w:st="on">Building</st1:PlaceType> The <st1:place w:st="on"><st1:PlaceType
w:st="on">University</st1:PlaceType> of <st1:PlaceName w:st="on">Manchester</st1:PlaceName></st1:place><o:p></o:p></span></font></b></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>I will describe the
VideoTrace system developed in a collaboration between <st1:PlaceName w:st="on">Oxford</st1:PlaceName>
<st1:PlaceName w:st="on">Brookes</st1:PlaceName> <st1:PlaceName w:st="on">University</st1:PlaceName>
and the <st1:place w:st="on"><st1:PlaceType w:st="on">University</st1:PlaceType>
of <st1:PlaceName w:st="on">Adelaide</st1:PlaceName></st1:place>. VideoTrace
interactively generates realistic 3D models of objects from video—models
that might be inserted into a video game, a simulation environment, or another
video sequence.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>The user interacts with
VideoTrace by tracing the shape of the object to be modelled over one or more
frames of the video. By interpreting the sketch drawn by the user in light of
3D information obtained from computer vision techniques, a small number of
simple 2D interactions can be used to generate a realistic 3D model.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Each of the sketching
operations in VideoTrace provides an intuitive and powerful means of modelling
shape from video, and executes quickly enough to be used interactively.
Immediate feedback allows the user to model rapidly those parts of the scene
which are of interest and to the level of detail required. The combination of
automated and manual reconstruction allows VideoTrace to model parts of the
scene not visible, and to succeed in cases where purely automated approaches
would fail.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><i><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-weight:bold;font-style:italic'>Part
of the <st1:PlaceName w:st="on">ACM</st1:PlaceName> <st1:PlaceName w:st="on">SIGGRAPH</st1:PlaceName>
<st1:PlaceType w:st="on">University</st1:PlaceType> of <st1:place w:st="on"><st1:City
w:st="on">Manchester</st1:City></st1:place> Professional Chapter Seminar
Series<o:p></o:p></span></font></i></b></p>
<p class=MsoNormal><b><i><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-weight:bold;font-style:italic'>http://manchester.siggraph.org/<o:p></o:p></span></font></i></b></p>
<div style='border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm'>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Anyone wishing to view a seminar via Access Grid
should note the following. Please check the Jabber room shortly before the
start of the seminar to find out whether IGPix or ScreenStreamer is to be used.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Jabber room:
university-of-manchester-(1.10)(sam.ag.manchester.ac.uk)@conference.mcs.anl.gov<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>ScreenStreamer:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> * Preferably use ScreenStreamer
software - go to
http://www.memetic-vre.net/software/ScreenStreamer/ScreenStreamer.php, and
select room "<st1:place w:st="on"><st1:PlaceType w:st="on">University</st1:PlaceType>
of <st1:PlaceName w:st="on">Manchester</st1:PlaceName></st1:place>
(1.10)" from the AGSC section. Grab the screen feed (by clicking on it)
from the screenstreamer window and resize it - more info can be found on
http://www.memetic-vre.net/software/ScreenStreamer.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> * Alternatively, the screenshot
(not animated) can be accessed at http://192.150.184.66:7890 (this IP might
change for some sessions - please check Jabber). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>For technical assistance regarding the Access Grid,
please contact the Access Grid Support Centre. Non-UK Access Grid nodes are
advised to contact the Access Grid Support Centre to check connectivity before
the date of the seminar.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>If possible, please let us know in advance if your
site intends to join a seminar.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><img width=241
height=351 id="_x0000_i1029" src="cid:image002.jpg@01C82F83.FF1D7140"><o:p></o:p></span></font></p>
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