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[oats-sig] open gazer problems

Chris Feser chrimp at gmx.de
Thu Nov 8 12:09:50 GMT 2007

Article: [oats-sig] open gazer problems

I use the Logitech Quickcam 4000PRO and it works quite fine.
The only problem is, when you move your head too much. 

I have to talk to my prof and we will see in which direction we can go with
the opengazer.

I would love to try porting it to Windows and/or try to improve the head/eye
tracking.
My goal is to use a gaze tracker in a 3d-room that you can exactly know,
where the person is looking to.
And if there is time I will track the eye-contact, too.

so long...

cheers 
chris 



Stephen Emslie wrote:
> 
> Great that you got it working! It took me quite a while to get the
> feel of compiling against vxl too.
> 
> I would love to hear any feedback on what sort of accuracy you are
> able to achieve and what webcam you are using.
> 
> Stephen Emslie
> 
> On Nov 7, 2007 3:11 PM, Chris Feser <chrimp at gmx.de> wrote:
>>
>> Thx Steve!
>> Now I understand the connection from vxl to opengazer.
>> I fixed it quick and dirty and copied the missing files to the expected
>> directory. I have no idea what I did wrong the whole time, but now it
>> works.
>>
>> thank you all very much for your help!
>>
>> I wrote the developer of opengazer an email if there is a support forum
>> or a
>> mailing list, but I have no answer yet.
>> Does anybody of you have an idea or is this forum the best place for
>> opengazer problems?
>>
>> I'll play around with opengazer and try to extend it or even will try, to
>> port it to Windows.
>>
>> cheers and have a nice day!
>>
>> chris
>>
>>
>>
>>
>> Steve Lee-3 wrote:
>> >
>>
>> > Hi Chris, yes, and to give a little more detail to my previous
>> reply....
>> >
>> > taking theLeastSquares.h:2:28  error as an example
>> > Look in the file LeastSquares.h line 28
>> > it will have a line something like
>> > #include <vnl.vnl_vector.h>
>> > or
>> > #include "vnl.vnl_vector.h"
>> >
>> > I'm guess  from the error it has <vnl/vnl_vector.h>.
>> >
>> > The critical thing is if it is prefixed 'vnl/'. if so then the
>> > compiler will search for a file 'vnl/vnl_vector.h' under each of the
>> > paths specified in you makefile with INCLUDES. In other words
>> > vnl_vector.h is sought in a folder vnl under each given path.
>> > (if the #include "file" form is used life is a little more complex but
>> > we can probably ignore that)
>> >
>> > If your vnl_vector.h is not in such a folder then you can either copy
>> > all of them for a quick fix or change the makefile to change where the
>> > compiler is told to look.
>> >
>> > I'm afraid I'm tied up at the mo and can't check the real files but
>> > perhaps stephen can shed a little more light on the matter?
>> > * stephen where are your vnl headers?
>> > I have Gutsy so will try, but it probably won't be till next week.
>> >
>> > Steve
>> >
>> > On 06/11/2007, Chris Feser <chrimp at gmx.de> wrote:
>> >>
>> >> Thx.
>> >> I think I have a problem wih the header files.
>> >> Should they be there, where I compiled VXL into?
>> >> BUILD_SHARED_LIBS are ON and I changes the  CMAKE_INSTALL_PREFIX to
>> >> /usr/bin
>> >> because I compiled VLX now into this directory.
>> >>
>> >> Could yo please tell me, where are the header files should be?
>> >>
>> >> I use ubuntu 7.10 Gutsy
>> >>
>> >> cheers
>> >> chris
>> >>
>> >>
>> >> Stephen Emslie wrote:
>> >> >
>> >> > Now that I'm home perhaps I can compare my own Makefile.
>> >> >
>> >> >> but my compiled vxl is there:
>> >> >>  /home/chris/Desktop/software/bin
>> >> > ...
>> >> >> My Makefile looks like this:
>> >> >> # required libraries: vxl, opencv, boost, gtkmm
>> >> >>
>> >> >> VXLDIR = /home/chris/Desktop/software/bin
>> >> >
>> >> > It could be that the header files built when installing vxl are not
>> in
>> >> > /home/chris/Desktop/software/bin? When you configured vxl with
>> cmake,
>> >> > what was "CMAKE_INSTALL_PREFIX" set to (mine is /usr - same as
>> >> > VXLDIR)? Obviously "BUILD_SHARED_LIBS" needs to be on for this to
>> >> > work.
>> >> >
>> >> > The only thing I really had to change in the Makefile was to set the
>> >> > VXLDIR to the same as the install prefix.
>> >> >
>> >> > Best of luck
>> >> >
>> >> > Stephen Emslie
>> >> >
>> >> >
>> >> >
>> >>
>> >> --
>> >> View this message in context:
>> >> http://www.nabble.com/Re%3A-open-gazer-tf4558293.html#a13615292
>> >> Sent from the OATS Project Interest Group mailing list archive at
>> >> Nabble.com.
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> > Steve Lee
>> > --
>> > Jambu - Alternative Access to Computers
>> > www.fullmeasure.co.uk
>> >
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Re%3A-open-gazer-tf4558293.html#a13628973
>>
>> Sent from the OATS Project Interest Group mailing list archive at
>> Nabble.com.
>>
>>
>>
> 
> 
> 

-- 
View this message in context: http://www.nabble.com/Re%3A-open-gazer-tf4558293.html#a13645831
Sent from the OATS Project Interest Group mailing list archive at Nabble.com.



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