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View Full Version : what do you know about eye trackers?



raaaid
06-13-2007, 11:44 AM
ive just found out that for virtual reality to happen you not only have to look at the picture with the same fov it was taken but you can only look at the center of the picture if you look at the sides it wont look real

so the future of vr i think lays in eye tracker since they allow to always be looking at the center of the picture

what do you know on eye trackers?

is optitrack from np an eyetracker?

Jaste07
06-13-2007, 12:17 PM
No, optitrack is a camera system used for motion capture. What it does is it reads sensors placed on an object, and records the data on a computer. It's what people who make movies or animations in games use to create animations. Optitrack would not be able to be used for your purposes, as even if it could track your eyes, it would only be able to record their movements.

I don't think it would be possible to record eye movements. All current technology, such as trackir, sees the movement of the sensors, not the movement of your head. So in order to track eye movements, you would need sensors physically on your eyes.

Needless to say it would be very uncomfortable.

raaaid
06-13-2007, 12:22 PM
yes but do you remember the blue thunder? the guy just had to look to aim

i was amazed when i found out apache used an eye tracker as well, from fiction to reality

Jaste07
06-13-2007, 12:38 PM
Close, the apache actually just uses a head tracker, not an eye tracker. The targeting viewscreen is linked to the helmet worn by the gunner.

From the article on the Target Acquisition and Designation System, Pilot Night Vision System (TADS/PNVS) for the apache:

"Mounted above the TADS, the PNVS contains an infrared camera slaved to the head movements of the pilot. PNVS can rotate +/- 90 degrees in azimuth and +20/-45 degrees in elevation. PNVS has a high rate of movement so as to accurately match the head movements of the pilot."

So the apache's targeting system trackes head movements, not eye movements. It's essentially a more sophisticated version of trackir. I think trackir is going to be the closest you can get to what you're saying.

I see what you mean though, its an interesting concept.

raaaid
06-13-2007, 12:52 PM
anyway im no so sure you must look at the center of the picture

because painting on glass what you see trhough it is a picture in which you can look anywhere

though it would be cool put the bullet where you put the eye

stathem
06-13-2007, 01:09 PM
Raaid, does Google not work with your browser?

Here's some to set you off.

http://www.tobii.com/

http://en.wikipedia.org/wiki/Eye_tracking

http://www.eyetracking.com/

Freelancer-1
06-13-2007, 01:14 PM
If this is your eye while reading, and the screen was tracking your pupil, I can see a good argument for keeping a barf bag beside the monitor http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif

http://i5.photobucket.com/albums/y189/Freelancer1/Animation/augeanim.gif

OD_
06-13-2007, 01:25 PM
The helmet mounted sight in Eurofighter tracks the left eye and uses it for target aquisition from what I remember. It is possible. I think you are right with the Apache in that it tracks the head to move the cannon.

Just think how easy it would be to target missiles if all you had to do was look at the target though.

OD.

raaaid
06-13-2007, 01:36 PM
what about mind tracking remember firefox

if someone thinks the system sucks electroshok

i heard they were studying putting into airports mindtrackers that detect fear

but that would uncover the cake

LStarosta
06-13-2007, 01:40 PM
Originally posted by OD_:
The helmet mounted sight in Eurofighter tracks the left eye and uses it for target aquisition from what I remember. It is possible. I think you are right with the Apache in that it tracks the head to move the cannon.

Just think how easy it would be to target missiles if all you had to do was look at the target though.

OD.

Think of how hard it was to discipline yourself to keep your head immobile when using trackIR. Now figure the same thing with your eyes. It's like flying at the position of attention. Gay.

CarpeNoctem43
06-13-2007, 02:19 PM
Eye tracking sounds like a cool concept but what about the idea, if the software / hardware recenters the screen based upon your eye movement, why does your eye move? Kind of a chicken and egg thing?

Or would it get out of control? I.e. a runaway screen?

Taylortony
06-13-2007, 04:13 PM
They initially tried this back in the original space flight programme in the 60's to operate switches in some of the capsules, because at the time, the thinking was pilots would not be able to operate controls under high G........

The idea was look at a switch and blink to turn it on......... they dropped it because, as the trials proved the astronut was sitting in the capsule happy and dumb blinking away as normal and turning everything off and on in the process lol http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif