Hi Philippe, On Tue, May 26, 2009 at 1:16 AM, Philippe Bossut (Merov Linden) < [email protected]> wrote:
> Gaze tracking: Often mentioned so that's certainly a misnomer in our > case: we'd like to track "what the user is looking at" rather than > "what the mouse is pointing to" (as it is today) but not to control > the interaction as is the case with gaze tracking as understood in the > field. Just share eye attention between residents. > Always afraid to overload list, sorry guys..., > > OpenCV is a great start starting point because it will allow 'gaze > tracking' to also be more easily considered as the 'next thing'. Already > quite a few low cost cam OpenCV 'gaze tracking' based experimental solns out > there. On gaze= track mouse traditionally? Some of my work dealt with 'peer > gaze awareness' in shared spaces (well long time back..decade)--in one > strange case-I used gaze to browse dense auditory spaces..after the real > time gaze data was stabilized to filter out saccades...so in most cases IMHO > gaze was tracked for observational purposes from a HCI UI eval perspective > and awareness capture perspective..Gaze for manipulation (ie gaze to control > pointer) was more assistive tech stuff. > > I see Philip ruled out IR tracking right from the begining so dealing with > environmental conditions will be a hard problem... guess better solns could > come out from tougher constraints. So all is good, but even the Wii had to > ditch a non-IR solution. > > Reason why 'peer gaze awareness' is a big issue for collaboration, building > and otherwise... perceptual role taking, is that facial expressions (gaze > direction) and head orientations in many cases does not allow sensible > inferences to be made about the user behind the screen's attention space/ > attention focus. I see this every day in my work that requires shared > viewing of drawing boards, dioramas for emergency preparedness, equipment > and so forth.. > > Melinda suggested a few ways to deal with pointing and also did not > consider camsync to be of primary importance for the SL client. I went back > to drawing board and tried all kinds of ways to test these methods...lots of > findings here but afraid will appear off topic. > > Ramesh Ramloll > > > > > >
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