[sldev] Anyone here with OpenCV experience?

[Tigro Spottystripes]

actually, how about a mini "programing language" for the gestures (here
used in the regular SL sense) triggers to allow flexibility in
expression detection, with one or two characters identifying which face
part  followed by a number specifying a range of position, perhaps two
digits to make the range thing more flexible

like, for the "wtf?! o.0 " gesture the trigger could be somthing like
LE79RE13 (which translates to Left Eye between quite open and absurdly
open, and Right Eye from almost closed to slightly closed)

we could have specific markers for the corners of the mouth, the upper
lip, the bottom lip, the chin, left and right cheeks/cheekbones, the
eyebrows and I'm not sure there is more to track (other than gaze
direction), ah, of course, tonuge! :P

since the tongue can move out but also sideways, there coudl be two
different marks, TO for tongue and TS for Toungue Sideways, or if 10 is
too little resolution for tongue movement make one for each side, and if
going to one side the marker for the other is zero, hm, actually, we
will need one for TV Tongue Vertical, for vertical movements of the
tongue as well (and for the resolution issue if present, just to TU and
TD like for sideways movement)

Dzonatas Sol escreveu:
> Not everybody will wear a human face in VR, so there is merit to use
> avatar gestures. A specific interface would require a one to one
> relationship between the human face and the avatar face. There may be
> different gestures needed when the human face performs certain
> actions. To keep it in avatar gestures lets us not rely on that
> one-to-one relationship. A middle layer between the human facial
> gestures can act to translate the current shape of the avatar face.
> The avatar may have several heads (I've seen 7 headed dragons) and
> maybe someone wants to control them all with human facial gestures.
> Something that is too specific in a one-to-one relationship wouldn't
> allow that to happen.
>
> I think a channel that sends recognized avatar gestures would be less
> noisy than a channel that sends all head motions and facial positions,
> continuously.
>
> Moriz Gupte wrote:
>> I think that with the exception of 'yes' and 'no', the thought of
>> translating head motions to 'construct' a facial expression or a
>> gesture expression or even implement FACS
>> <http://en.wikipedia.org/wiki/Facial_Action_Coding_System>(I dont
>> think Philip meant that)
>> seems at least to me to much more complex -- probably why I
>> interpreted Philip's post the way I did.
>> And I do not recommend using the very narrow channel of information
>> that head motions provide to drive a wide range of avatar
>> gestures...because this channel will be so noisy, that a lot of
>> ambiguities will arise, so much that it will cease to become useful.
>> So what looks the 'simple' low bearing fruit... might ultimately be
>> problematic.
>>
>> On Thu, May 21, 2009 at 10:34 PM, Melinda Green
>> <melinda at superliminal.com <mailto:melinda at superliminal.com>> wrote:
>>
>>     my understanding is that Philip and Merov's
>>     intent is to simply translate user head movements into avatar
>>     gestures.
>>
>>
>>
>>
>> -- 
>> Rameshsharma Ramloll PhD Research Assistant Professor Idaho State
>> University, PocatelloTel: 208-282-5333
>> More info at http://tr.im/RRamloll
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