ImageDescriptionFaq

From FOAF

One of the FoafGalwayBreakoutSessions at FoafGalway was finding out the questions people ask about ImageDescription in RDF, and got a big list of questions, to which we only know some of the answers. -- LibbyMiller

http://www.wasab.dk/morten/2004/08/photos/eire/4/t/image-14-t.jpg http://www.wasab.dk/morten/2004/08/photos/eire/4/t/image-13-t.jpg

detailed photos of whiteboard, more

Contents 1 How do I say who is in a picture? 2 How do I describe who took a photo, who edited it, or who created something depicted? 3 How do I describe a series of connected photos? 4 How do I describe EXIF data? 5 How do I attach location information to an image? 6 How do I link to an audio description? 7 How do I describe activities or actions? 8 How do I describe things? 9 How do I say when a photo was taken? 10 How do I describe the spacial relationships of things depicted? 11 How do I say what the main thing in a picture is? 12 How do I identify things? 13 How do I attach ratings to images? 14 How do I express legality of the subject? 15 How do I relate versions of an image together? 16 How do I express the idea that an image has a machine processible version? 17 How do I describe the licensing details? 18 How do I say that an image has a certain mood or colour?

[edit] How do I say who is in a picture?

 * (not sure it's relevant whether the person is alive or dead. what's more important is whether they have/had an IFP or not.)
 * people with an IFP
   * use IFP
     * mbox
     * mbox_sha1sum
     * homepage
     * [any other IFP]
 * people without an IFP
   * (at the very least) use the relationship schema to connect to people with an IFP (?)
 * Historical IDs has begun generating URIs for historical figures.

[edit] How do I describe who took a photo, who edited it, or who created something depicted?

* creator
   * use foaf:maker (?)
* annotator
* editor, workflow (Adobe stuff?)
* describing works

[edit] How do I describe a series of connected photos?

* e.g. a story or narrative

[edit] How do I describe EXIF data?

* Masahide's schema
* angle, direction?
   * exif:gpsImgDirection works for 2-dimensional direction. What about angle above/below the plane?
   * do we also want to describe the camera orientation (up vector)?

[edit] How do I attach location information to an image?

 * See SimplePhotoAnnotation for a start
 *    depicting a location
   * foaf:depicts a cyc:Spatial``Thing-Localized
 *    GPS coordinates
   * dcterms:spatial a cyc:Spatial``Thing-Localized
 *    being created at a location
   * is this the same as GPS coordinates (?)
 *    more complex stuff, 'nearby'
   * contact:nearestAirport
   * foaf:based_near
   * geoRelations vocab has lots of terms for this. (isEastOf, Within``Meters``Of, &c.)

[edit] How do I link to an audio description?

 *    maybe with dcterms:hasFormat (?)

[edit] How do I describe activities or actions?

* Wordnet possibly?

[edit] How do I describe things?

* Wordnet
* archetypes?

[edit] How do I say when a photo was taken?

 * use dc:date

[edit] How do I describe the spacial relationships of things depicted?

 *    image regions vocabularies
 *    more detail? behind/in front etc
   * geoRelations vocab has lots of terms for this. (isInFrontOf, isLeftOf, &c.)

[edit] How do I say what the main thing in a picture is?

 *    foaf:primaryTopic

[edit] How do I identify things?

 *    e.g. my cat
   * use pets vocab
 * use IFPs where applicable (for instance, websites of landmarks, parks, &c.)

[edit] How do I attach ratings to images?

* amihotornot?
   * reviews vocab can be used to attach rev:rating numbers
* my good side
* photos of us smiling
* multiple people say that this is me

[edit] How do I express legality of the subject?

* or more generally, the age rating of the content

[edit] How do I relate versions of an image together?

* foaf:thumbnail
* Adobe stuff?

[edit] How do I express the idea that an image has a machine processible version?

* e.g. a photo of an excel file, an image of a whiteboard

[edit] How do I describe the licensing details?

* creative commons
* model agreements

[edit] How do I say that an image has a certain mood or colour?

* ....?