3 ms·

I have an EyeX. The eye tracking is very effective -- spookily so. Imprecise but low-latency, which is the right tradeoff to make. It can be faster than mous

by rdw 12y ago

I have an EyeX. The eye tracking is very effective -- spookily so. Imprecise but low-latency, which is the right tradeoff to make. It can be faster than mousing, if the UI is set up just right. The main limitations that keep me from using it: - Mac is not supported. - Very small active area. You basically have to keep your head within about a 2x2 foot cube. You can't lean back, on an armrest, or even slump.

listic 12y ago
What is the difference between EyeX and 'SteelSeries Sentry Gaming Eye Tracker' described in an article? Can you enlarge your active area by moving the monitor further away from your head? I guess Linux is not supported, too?
- unwind 12y ago
  For Linux they seem to be recommending the "Tobii REX" at a comfortable $795. Ouch. :(
  - kefka 12y ago
    And it's not even that good. We had a Rex. We gave it away. Read my post above. It gives better detail of our trials and our result.
    - listic 12y ago
      ok, so now there's an EyeX, Rex and this newest 'SteelSeries Sentry Gaming Eye Tracker'. What's the difference? What's the point in releasing this newer thingy which is more expensive than EyeX, which I now see was available for arounf a year?
      - kefka 12y ago
        It appears they added an extra IR eye scanner module, increasing accuracy. And they're focusing on 'sell to money-is-water gamers'. I'd wait. The zone of gaze tracking is still too small, and it's still hardware in need of a killer app.
- rdw 12y ago
  It has a depth limit, as well. It's truly a 2x2x2 cube. In my current setup, I can lean forward quite a bit, till the monitor is a little too close for comfort, but I cannot lean back at all. In playing with it, I've noticed that there's sometimes a bit of latency in the edge detection; I'll lean back, do some eye-ing for a second or two and then all of a sudden it cuts off. It gives me the impression that they're not actually enforcing a cube per se, but that their technique has increasing error rates outside of a sweet spot, and they have an errors-over-time cutoff. I have a lot of sympathy for the difficulties in the implementation. The eye moves only a tiny amount, so you need a high-resolution camera to detect where it's looking with any accuracy (this is why they require USB 3). If the camera is already pushing the limits of inexpensive consumer camera technology, you can't easily expand its field of view without compromising accuracy. Here's a paper that talks briefly about the technology: http://www.tobii.com/eye-tracking-research/global/library/white-papers/tobii-eye-tracking-white-paper/ http://www.tobii.com/eye-tracking-research/global/library/wh...

by rdw 12y ago

listic 12y ago

What is the difference between EyeX and 'SteelSeries Sentry Gaming Eye Tracker' described in an article? Can you enlarge your active area by moving the monitor further away from your head? I guess Linux is not supported, too?

unwind 12y ago
For Linux they seem to be recommending the "Tobii REX" at a comfortable $795. Ouch. :(
- kefka 12y ago
  And it's not even that good. We had a Rex. We gave it away. Read my post above. It gives better detail of our trials and our result.
  - listic 12y ago
    ok, so now there's an EyeX, Rex and this newest 'SteelSeries Sentry Gaming Eye Tracker'. What's the difference? What's the point in releasing this newer thingy which is more expensive than EyeX, which I now see was available for arounf a year?
    - kefka 12y ago
      It appears they added an extra IR eye scanner module, increasing accuracy. And they're focusing on 'sell to money-is-water gamers'. I'd wait. The zone of gaze tracking is still too small, and it's still hardware in need of a killer app.
rdw 12y ago
It has a depth limit, as well. It's truly a 2x2x2 cube. In my current setup, I can lean forward quite a bit, till the monitor is a little too close for comfort, but I cannot lean back at all. In playing with it, I've noticed that there's sometimes a bit of latency in the edge detection; I'll lean back, do some eye-ing for a second or two and then all of a sudden it cuts off. It gives me the impression that they're not actually enforcing a cube per se, but that their technique has increasing error rates outside of a sweet spot, and they have an errors-over-time cutoff. I have a lot of sympathy for the difficulties in the implementation. The eye moves only a tiny amount, so you need a high-resolution camera to detect where it's looking with any accuracy (this is why they require USB 3). If the camera is already pushing the limits of inexpensive consumer camera technology, you can't easily expand its field of view without compromising accuracy. Here's a paper that talks briefly about the technology: http://www.tobii.com/eye-tracking-research/global/library/white-papers/tobii-eye-tracking-white-paper/ http://www.tobii.com/eye-tracking-research/global/library/wh...