[sldev] Anyone here with OpenCV experience?

[Jan Ciger]

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Ramesh Ramloll wrote:
> Hello,
> For non-immersive VR stuff, I have seen a few web cam applications that
> allows one to map trackers to control keys of a game
> (http://www.camspace.com). I do not know if they share their API (I
> thought I saw their SDK a while back). 

That isn't difficult to do, but it will be probably not very smooth, I
am afraid.


> Are we still designing for folks sitting in front of the screen? Would
> eye tracking not be more appropriate rather than head tracking (head
> posn remains fixed most of time in my case)? 

Strictly speaking yes, but it is much harder to do with a cheap,
consumer grade equipment without requiring the user to wear something on
their head (typically a camera and an infrared LED pointed at your eye).

A regular 640x480 webcam at ~80cm from the user's face will see the eyes
only few pixels wide. Trying to measure the gaze direction from that is
next to impossible with any accuracy.

Regards,

Jan
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