W3C home > Mailing lists > Public > public-xg-mmsem@w3.org > April 2007

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

From: RaphaŽl Troncy <Raphael.Troncy@cwi.nl>
Date: Mon, 02 Apr 2007 11:30:00 +0200
Message-ID: <4610CD18.6D812F7D@cwi.nl>
To: GaŽtan Martens <Gaetan.Martens@ugent.be>
CC: public-xg-mmsem@w3.org

Dear GaŽtan,

> <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...

This will allow you to type the region, i.e., to say that your region is a rectangle, an ellipse or whatever ... Indeed, the use of OWL is useful here if you
want to formally define some properties of your region.
But that will not link this region to the bits of your media, nor uniquely identify this region :-(

> 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.

Yes, that is more or less the solution I have proposed in [1], but again, you would need specific terms to agree on how to define a bounding box, a circular
region, etc ... and for that I propose to use the standard way of either SVG or MPEG-7 ... Hummm, again interoperability problems :-)

Best regards.


[1] http://lists.w3.org/Archives/Public/public-xg-mmsem/2007Apr/0002.html

RaphaŽl Troncy
CWI (Centre for Mathematics and Computer Science),
Kruislaan 413, 1098 SJ Amsterdam, The Netherlands
e-mail: raphael.troncy@cwi.nl & raphael.troncy@gmail.com
Tel: +31 (0)20 - 592 4093
Fax: +31 (0)20 - 592 4312
Web: http://www.cwi.nl/~troncy/
Received on Monday, 2 April 2007 09:30:28 UTC

This archive was generated by hypermail 2.3.1 : Tuesday, 6 January 2015 20:01:25 UTC