Re: [osg-users] Open source projects for eye tracking

2009-08-08 Thread Gerwin de Haan
I asked Oleg Komogortsev, an eye-tracking researcher at Texas State
University:  here is what we use at the moment http://www.gazegroup.org/ ,
the quality of the results will depend on your camera hardware. But this is
the best in my opinion at the moment.

I briefly looked it up, and their GPL software is based on
http://sourceforge.net/projects/gazetrackinglib/, which in turn is based on
openCV (via emguCV .NET bindings unfortunately). However, it might provide
useful pointers for new projects.

Cheers,
Gerwin


On Fri, Aug 7, 2009 at 4:55 PM, Robert Osfield robert.osfi...@gmail.comwrote:

 Hi VR-experts,

 There is a project proposal that I'm looking into that will require
 real-time eye tracking using standard PC webcams.  A quick search of
 the web suggests that there are solutions out there, including some
 open source ones, but as to how good they or how suitable they are for
 use in a cross platform C++ app (that will built on top of the OSG) I
 can't say without doing lots of download, building and testing.

 Now there is quite a bit of VR expertise in this community, a pretty
 decent place to asks for thoughts on best VR related technologies,
 so... what do you guys think about this topic?  Are there good open
 source eye tracking libs out there that are easy to use and integrate?

 Thanks in advance for you thoughts/suggestions,
 Robert.
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Re: [osg-users] Open source projects for eye tracking

2009-08-07 Thread Martin Beckett
It's fairly easy to do in OpenCV using Haar trackers.
OpenCV also handles all the webcam stuff for you fairly painlessly.

See http://www.codeproject.com/KB/cpp/TrackEye.aspx for example.

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Re: [osg-users] Open source projects for eye tracking

2009-08-07 Thread Martin Beckett
Sorry forgot to add, OpenCV is C/C++, cross platfom is BSD licensed and works 
well with OSG.

The documentation isn't bad and it's used by a lot of vision courses so quite a 
few tutorials out there. There is a good intro book from O'Reilly


Martin

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Re: [osg-users] Open source projects for eye tracking

2009-08-07 Thread Robert Osfield
Hi Martin,

Thanks for the pointer.  Have you use TrackEye yourself?

Robert.

On Fri, Aug 7, 2009 at 4:32 PM, Martin Beckettm...@mgbeckett.com wrote:
 It's fairly easy to do in OpenCV using Haar trackers.
 OpenCV also handles all the webcam stuff for you fairly painlessly.

 See http://www.codeproject.com/KB/cpp/TrackEye.aspx for example.

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Re: [osg-users] Open source projects for eye tracking

2009-08-07 Thread Martin Beckett
No, other than running the demo.
I once did something to automatically find pupil position/size for an opthalmic 
system but it didn't do gaze direction.
One thing that was very useful (if you can control the environment) was to use 
an IR LED which reflects off the cornea and an IR sensitive camera to find the 
eye.  For the opthalmic app we couldn't have bright lighting.

The openCV code is reasonably good but the community and forums aren't as 
helpfull as OSG. There are a lot of how make seeing robot newbie posts. For 
some reason openCV is very popular in India/China.

Martin

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