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RE: F2F 3 and call for comments

From: Bailer, Werner <werner.bailer@joanneum.at>
Date: Mon, 27 Apr 2009 16:53:03 +0200
To: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Message-ID: <CD9846F872C7874BB4E0FDF2A61EF09F155BA7F2AF@RZJC1EX.jr1.local>
Dear Joakim, all,

I've now looked again at the set of properties we've defined in Barcelona and checked it against sets of metadata properties we have been using in recent project. In general I did not identify really big gaps, however, there are some smaller issues.

* Concerning descriptive metadata, there are just two minor things that could be added either as separate elements with qualifiers to elements we already have in the set:

- tag line is a commonly used property for movies (it could also be a specific kind of title)

- reference to other media representing the content, such as thumbnails, trailers, etc. (could be expressed as a specific type of relation + URI)

* Concerning technical metadata, I found one important and a few nice to have properties missing:

- There is no property to describe the number of tracks (and maybe type of tracks), e.g. which audio channels in a surround setup, several language channels, audio commentary, etc., in future probably also several video channels. The MFWG has defined "track fragments" as a specific type of fragment identifier, so the range of options for this kind of fragments for a content must be known.

- sample type/depth could be useful at least in a limited way, e.g. to express black/white or color, in some application (e.g. medical imaging) a more precise specification could be helpful

- file size/bit rate could be useful for media to be downloaded/streamed

- I know we excluded temporal sampling rate, but I'm not sure why it should be excluded when spatial sampling rate is included

Best regards,
Werner
 

> -----Original Message-----
> From: public-media-annotation-request@w3.org 
> [mailto:public-media-annotation-request@w3.org] On Behalf Of 
> Joakim Söderberg
> Sent: Sonntag, 19. April 2009 18:34
> To: public-media-annotation@w3.org
> Subject: F2F 3 and call for comments
> 
> Folks,
> 
> The third F2F was successfully conducted at UPC in Barcelona. 
> 
> Thanks to the hosts and all present participants! You did a 
> really good job and we had some very constructive and discussions.
> 
>  
> 
> As a result of this meeting we now have a set of "Media 
> Annotations Attributes". It is a very important result since 
> it will be the foundation of our second publication "Media 
> Entity Ontology".
> 
> THIS IS CALL TO ALL PARTICIPANTS OF MEDIA ANNOTATIONS WG TO 
> PLEASE STUDY THIS TABLE AND PROVIDE COMMENTS! The table can 
> be found on our Wiki:
> 
>  
> 
> http://www.w3.org/2008/WebVideo/Annotations/wiki/Top_Supported_Tags
> 
>  
> 
> Best regards
> 
> Joakim
> 
> 
Received on Monday, 27 April 2009 14:53:55 GMT

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