Face animation questions

Valerie Sutton sutton at SIGNWRITING.ORG
Fri Mar 26 21:20:29 UTC 2004

SignWriting List
March 26, 2004

SW Listers, and Nikos -
I must go offline now, to complete a deadline, so more tomorrow...I 
will try to answer every question, Nikos!

Val ;-)


On Mar 26, 2004, at 2:42 AM, Nikos Grammalidis wrote:

> Dear Valerie,
> Our work is proceeding very well and we are going to release a very 
> interesting web page very soon.
> We are also proceeding very well with supporting  facial animation 
> symbols (although this will not be
>  available in the first version of the Web page), but we would like 
> some help with these. We are first trying
> to support STATIC facial expressions, which can be described by 
> just one FAP frame (no dynamic information, i.e. MOTION):
> 1)the dynamic symbol which represents the tense movement (what exactly 
> means tense movement?)
> 2) Please try to explain to us the meaning (i.e. what parts of the 
> face move and how) in the following facial expressions (if you can
> also point us to corresponding animated images or videos in the web, 
> this would be great):
>  -eyegaze back (and back-diagonal)
> -tense cheek movements
>  -whole face over to the right/left (does the neck-whole head turn?)
> -contact tip of nose (does the fingertip touch the tip of nose or 
> what?)
> -rim of head/face 
> 3) Also, we cannot understand exactly the case where more than one 
> face symbols exist in a signbox.
> First of all, can more than two such symbols exist?
> How should we deal with these transitions (assuming that we have built 
> all the individual expressions)?
> An first approach that we can think of is to divide the time range 
> allocated to the sign (which is currently
>  determined by hands/body symbols in the signbox) into n(the number of 
> face symbols) equal segments and
> then reproduce each individual expression in its corresponding time 
> segment.
>  Do you think that this is correct or do you suggest something else?
> Regards,
> Nikos.
> -----------------------------------------------------------------
> Nikos Grammalidis,
> Electrical Engineer, Ph.D.
> Informatics and Telematics Institute
> 1st Km Thermi-Panorama Road
> 57001 (PO Box 361)
> Thermi-Thessaloniki, Greece
> Tel. : +30-2310-464160, (internal 117)
> Fax : +30-2310-464164
> WWW : http://www.iti.gr/db.php/en/people/Nikolaos_Grammalidis.html

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