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RE: Re: [MMSEM] RDF and syntactic interoperability]]

From: Christian Timmerer \(ITEC\) <christian.timmerer@itec.uni-klu.ac.at>
Date: Sat, 31 Mar 2007 15:59:22 +0200
To: 'GaŽtan Martens' <Gaetan.Martens@ugent.be>, <public-xg-mmsem@w3.org>
Cc: <christian.timmerer@itec.uni-klu.ac.at>
Message-ID: <000b01c7739c$c9be8ff0$5d3bafd0$@timmerer@itec.uni-klu.ac.at>


Dear GaŽtan, Susanne, all,
 MPEG offers the following tools which seems to be relevant for this
problem. However, I'm not sure whether it fits into the subject line of this
email though.

 (A) MPEG-7 MDS Media Locator: I guess you're very well aware of this one...
no need to explain.
 (B) MPEG-21 DIA FocusOfAttention [1]: This tools allows one to specify a
region in which a user might be interested. Actually, it reuses MPEG-7 MDS'
Media Locator but adds slightly different semantics on top of it.
 (C) MPEG-21 Fragment Identifications for MPEG resources [2]:
     - Provides a framework and schemes for addressing fragments of
resources with an MPEG MIME media type. The domains addressable include
spatial, spatiotemporal, temporal, physical format, and logical models.
     - In particular, it specifies a normative syntax for Fragment
Identifiers to be used in URIs (Uniform Resource Identifiers) for addressing
parts of any resource whose Internet Media Type is one of: audio/mpeg;
video/mpeg; video/mp4; audio/mp4; application/mp4*

* ... I believe this can be extended to other mime types as well but, I
believe, not within MPEG though.

Hope this is somehow helpful for you...

Thanks.
Best regards,
 -Christian

[1] http://vega.icu.ac.kr/~mccb-lab/publications/Paper/VCIP(2003)final.pdf
[2] http://www.chiariglione.org/mpeg/technologies/mp21-fid/index.htm.htm

:--
:- Dipl.-Ing. Dr. Christian Timmerer
:- Department of Information Technology (ITEC)
:- Klagenfurt University, Austria
:- http://research.timmerer.com
:----------------------------------------------------------

>> Visit the IT Campus Carinthia
>> http://www.it-campus.at

> -----Original Message-----
> From: public-xg-mmsem-request@w3.org [mailto:public-xg-mmsem-
> request@w3.org] On Behalf Of GaŽtan Martens
> Sent: Friday, March 30, 2007 9:55 AM
> To: public-xg-mmsem@w3.org
> Subject: [Re: Re: [MMSEM] RDF and syntactic interoperability]]
> 
> 
> Dear Susanne,
> 
> You're right about the fact that it's impossible to describe such
> regions in RDF.
> That's why we recommend using OWL. In OWL, one can refer to a data type
> and tie it into an ontology.
> 
> For example:
> <xsd:simpleType name="anXMLType">
> ....
> </xsd:simpleType>
> 
> Then we create a data typing class to represent this type:
> 
> <owl:Class rdf:ID="SomeClass"/>
> 
> and tie the data type restrictions to this Owl class using
> DataTypeProperty:
> 
> <owl:DataTypeProperty rdf="someClassValue">
> 	<rdfs:domain rdf:resource="#SomeClass">
> 	<rdfs:range  rdf:resource="someXMLns:anXMLType">
> </owl:DataTypeProperty>
> 
> Finally, the latter class (SomeClass) can be used in ObjectProperties
> etc...
> 
> So, to describe a region in an image, one can define such a region in
> XML Schema, (e.g. a rectangular region by the upper left and lower
> right coordinates,
> a circular region by its center and radius, etc) and consequently refer
> to this XML structure as explained above.
> 
> Kind regards,
> 
> GaŽtan
> 
> --
> GaŽtan Martens
> 
> Ghent University - IBBT
> Faculty of Engineering
> Department of Electronics and Information Systems
> Multimedia Lab
> 
> Gaston Crommenlaan 8 bus 201
> B-9050 Ledeberg-Ghent
> Belgium
> 
> t: +32 9 33 14959
> f: +32 9 33 14896
> t secr: +32 9 33 14911
> e: gaetan.martens@ugent.be
> 
> URL: http://multimedialab.elis.ugent.be
> 
> 
> Am 29.03.2007 um 17:33 schrieb Susanne Boll:
> 
> >
> > Dear Jeff,
> >
> > the problem is the following. Imagine that I use RDF to describe
> > a resource such as an image. How to I model in RDF that I
> > want to refer to a fraction of this image. This might be needed
> > if want to express the following.
> >
> > Subject (Susanne) - Predicate (is_the_person_in) - Object
> > (rectangle in an image)
> >
> > Looking at multimedia document models such as SMIL and other
> > research models they provide modelling constructs that virtually
> > select a part of a medium. In SMIL you can jump to a subsection
> > of a video, or add a link to a rectangular area in an image.
> >
> > Annotations in the photo use case might need the same construct
> > to label an image region with a name. Such a selector, however,
> > is not part of RDF.
> >
> > Kind regards,
> > Susanne
> >
> > Am 29.03.2007 um 12:10 schrieb Jeff Z. Pan:
> >
> >>
> >> Dear Susan,
> >>
> >> During last telecon, we had some discussions on using RDF to
> >> provide syntactic level of interoperability. The only concern we
> >> can think of is from your following message (in particular the
> >> last paragraph):
> >>
> >> http://lists.w3.org/Archives/Public/public-xg-
> mmsem/2007Mar/0001.html
> >>
> >> However, no one in the telecon could remember the detailed concern
> >> and we also failed to understand the phrase "selectors on top of
> >> resources" in the message. Could you clarify this issue please?
> >> Thank you.
> >>
> >> Best regards,
> >> Jeff
> >>
> >>
> >>
> >> --
> >>
> >> Dr. Jeff Z. Pan (http://www.csd.abdn.ac.uk/~jpan/)
> >> Department of Computing Science, The University of Aberdeen
> >>
> >>
> >>
> >
> > Professor Dr. Susanne Boll
> > University of Oldenburg
> > Department of Computing Science
> > Media Informatics and Multimedia Systems
> > Escherweg 2
> > D-26121 Oldenburg
> > Germany
> > Tel: +49-441-9722 213
> > Fax: +49-441-9722 202
> > WWW: mmit.informatik.uni-oldenburg.de
> > eMail: susanne.boll@informatik.uni-oldenburg.de
> >
> >
> >
> 
> Professor Dr. Susanne Boll
> University of Oldenburg
> Department of Computing Science
> Media Informatics and Multimedia Systems
> Escherweg 2
> D-26121 Oldenburg
> Germany
> Tel: +49-441-9722 213
> Fax: +49-441-9722 202
> WWW: mmit.informatik.uni-oldenburg.de
> eMail: susanne.boll@informatik.uni-oldenburg.de
> 
> 
> 
> 
> 
> 
> 
Received on Saturday, 31 March 2007 14:00:06 GMT

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