Overkill? I'm not so sure. Consider the extreme variations in contrast that something like this would be exposed to out in the field. Lighting is uncontrolled and unpredictable. A major source of light on a user's face may well come from the image shown on the monitor, and may reflect off of the user's glasses. Facial features are variable and skin tone, eyebrow color, and other facial hair could further confuse any detection methods. Background lighting and objects other than the user could cause false detections. Also the camera could not be controlled, Could one reasonably expect users to purchase a standard webcam from a single vendor when many computers come with integrated webcams? Somehow I don't think simple methods demonstrated that in a lab environment will perform well at all given all these potential confounds in all user environments. Whatever is implemented would need to be subjected to extensive user testing if any kind of wide acceptance would be desired.
On Thu, May 21, 2009 at 1:47 PM, Jan Ciger <jan.ci...@gmail.com> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Tigro Spottystripes wrote: > > What about Freetrack ? http://www.free-track.net/english/ > > > > or you're going for more than just 6dof positioning, or positioning > > without anything but a webcam? > > > > It is not cross-platform (Windows only) and requires a marker rig to be > worn. That is too complicated for simple camera movement. > > Regards, > > Jan > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org > > iD8DBQFKFb3ln11XseNj94gRAojEAJ9T2sq1+x/HrQjpSWVTK6KwAadMsQCgkMtO > v9MQmDFfPKWTJzz4vL53NRY= > =KWi6 > -----END PGP SIGNATURE----- > _______________________________________________ > Policies and (un)subscribe information available here: > http://wiki.secondlife.com/wiki/SLDev > Please read the policies before posting to keep unmoderated posting > privileges >
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