low cost eye tracker

[isaoz]

I am not sure where the best forum would be to post this. I basically need to design a low cost eye tracking system using a 1394 or usb camera fairly quickly. I was hoping to adapt some of those machine vision VIs that measure size, distance, length etc. to measure the position of the eyes from a live full or partial head image in real time, say at 10fps. Can you give me hints as to where I should post the question, where I can find example codes and how quickly I can do it if it is possible? I use Labview 8.5 and have NI Vision and Vision Assistant 8.5. I have a feeling a lot of people have probably done this in Labview already.  Any sample vis I can start with? Thanks

[muks]

First of all you have posted it in the right forum.

To begin with have a look at this

[muks]

here

[isaoz]

I may have underestimated the problem. I had briefly looked at both links you provided before I posted on this forum. First, I thought both were done a while ago ( one from win 95 era) and they both seems more complicated than what can be accomplished with current PCs. Is it still necessary to use IMAQ hardware to do this? My application does not need 100fps processing. Can't 10fps be achieved with sub Megapixel USB/1394 cameras?

[muks]

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Can't 10fps be achieved with sub Megapixel USB/1394 cameras?

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Thats is a costly question. I can say probably yes If you can explain what is the exact details that you need.

[isaoz]

I just want to measure the direction of gaze and I do not necessarily need mm accuracy. Just need some way to measure the position of the pupil in the eyeball.  Do you need any other details?

[guangli]

Hi, guys,

Did you resolve the problem. I just the braiding point using pattern matching in static image from USB camera. I got problem when i get the static image from camera. It looks like the ROI cannot be defined in the static image. Did you ever see the problem?

Thank you in advance! 

[isaoz]

Hello Muks,

I am not sure if you saw my response. I still have not given up on this project just got busy with other things. So do you think it is feasible or am I far off? ie eyetracking at 10fps using a 1394 or USB VGA resolution camera.

[muks]

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It looks like the ROI cannot be defined in the static image. Did you ever see the problem?

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ROI can definetly be applied to static images. I dont know where you are stuck. Can you explain the wteps you follow in defining an ROI? Why did you not start a new thread?Is this related? how?

[muks]

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isaoz wrote:

Hello Muks,

I am not sure if you saw my response. I still have not given up on this project just got busy with other things. So do you think it is feasible or am I far off? ie eyetracking at 10fps using a 1394 or USB VGA resolution camera.

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One solution with webcam. An intresting read though