[X3D-Public] DASH-X3D new profile - Interoper abilitypoint

kostas kapetanakis kapekost at gmail.com
Fri May 9 11:36:34 PDT 2014

Dear Sanden,

The MPEG-DASH approach we are currently working on (for my master's
dissertation) will present 3d models in several resolution instances and
inspite of the BASEurl, the MPD will provide proper information for dynamic
adaptation mechanisms to 3D players (browser-based or not). The content
will be delivered and rendered client-side, as X3DOM originally works right
now (and any other plug-in based player).

The approach with html5 canvas and gesture messages to a remote renderer
having sessions, is one of the implementations we performed using Java X3D
player, during our research in a project we are working in collaboration
with other departments, (i-promotion) (greek content description :
http://www.ipromotion.gr/) . There is a lot of optimization needed for such
an application to be published, the delay is almost unacceptable.

There is a procedural streaming approach we tested and published in a
minipage (during model loading you can navigate in the world). Utilizing
Websockets,  simple http requests and a batch request

furthermore, if you are interested some of our research demos are here:

On Fri, May 9, 2014 at 8:57 PM, doug sanden <highaspirations at hotmail.com>wrote:

> Kostas,
> Not sure how you use DASH with x3d. What does it look like?
> -Doug
> more..
> I had an idea -and may get to it in the next year- for something I call
> 'Server-Side Rendering' or SSR for short. If you've got beautiful Crete 3D
> tourist scenery -in X3D format- and want web surfers to be able to go
> around in 3D -but without heavy-duty x3dom .js, and without plugins- then
> the idea is that the client swipes/drags a 2D Html5 canvas which causes a
> 3D grid of construction lines to be redrawn as if navigating through the
> grid in 3D. When they lift their finger/mouse button at the end of the
> swipe/drag, the cumulative navigation is sent to the server, which moves
> the avatar in the scene and renders the snapshot from the new viewpoint
> pose, and ajaxes the view back to the client.
> This would need an x3d renderer capable of holding session state -if the
> scene state is different for each user- or else passing back the cumulative
> navigation in a cookie or restful url after correcting for collision and
> gravity to the cumulative navigation.
> Perhaps DASH-X3D is something like that, except the client has no control
> over the path, and instead of ajaxing snapshots a movie-like MPEG stream is
> sent.
> ________________________________
> > From: kapekost at gmail.com
> > Date: Fri, 9 May 2014 20:16:13 +0300
> > To: dash at lists.uni-klu.ac.at
> > CC: x3dom-users at lists.sourceforge.net; x3d at web3d.org;
> > athanasios.malamos at gmail.com; x3D-public at web3d.org;
> > x3dom-developers at lists.sourceforge.net
> > Subject: [X3D-Public] DASH-X3D new profile - Interoper abilitypoint
> >
> > to whom it may concern,
> >
> > In multimedia content laboratory of TEI of Crete, we are working on a
> > new profile/interoperability point, for 3D scenes delivery (X3D).
> > My first approach is based on ISO/IEC 23009-1.
> > I would kindly ask if anyone else is currently working on 3D scene
> > delivery for MPEG-DASH to contact me. Additionally, I would like more
> > information on how to describe a new interoperability point (the
> > documents which should be delivered for review according to
> > http://dashif.org/identifiers/how-to-register/ ).
> > Best Regards,
> >
> > --
> > Kostas
> > ​ ​
> > Kapetanakis
> > ​
> > ​
> > ​Project coordinator - R&D
> > McLab​ -​ Informatics Engineering
> > ​
> > T​EI​​ of Crete​
> > www.medialab.teicrete.gr<http://www.medialab.teicrete.gr>
> >
> > _______________________________________________ X3D-Public mailing list
> > X3D-Public at web3d.org
> > http://web3d.org/mailman/listinfo/x3d-public_web3d.org
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