4 and 5 calibration every time last week; now, can’t pass 2

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Re: 4 and 5 calibration every time last week; now, can’t pas

Postby JeffKang » 12 Apr 2014, 22:01

Thanks for the quick update.

Unfortunately, I think I might still be having some problems.

33

After installing 33, I did a calibration. I got one star, I tried again, and I got another one star.

I uninstalled 33, and launched the 28 installation setup. After installing, and doing a calibration, I get poor results. The Eye Tribe server does say that I am using 28.

I again recognize that I have the same point sample time, and number of points that I had in 33, so I again use the Everything search tool to find and delete anything that is related to Eye Tribe. Point sample time, and number of points returned to the defaults, and the screen with the “show at start up” comes back.

28

After this, I do 2 calibrations in 28, and I get five stars each time. (I’m still not sure why I need to delete files in addition to using the normal uninstall procedure to get to what I think is 28, even though it says that I’m in 28 in the server before or after any kind of deletion of files). The tracking is relatively steady.

33

I try 33 again, and I get one star again.

This time, I decide to do the same file deletions that I do when I downgrade to 28.

I uninstall 33, delete any Eye Tribe files, and then install 33.

On the first try, I get five stars. However, when I look at some of the white circles that turn red, the color change to red is flickering on and off very rapidly. It’s more rapid than I’ve ever seen it. It seems to be going on mostly with the top three white circles.

I go back to look at the direct feedback of the current tracking state in the EyeTribe UI (screen on the left with the animated eyes and green background). Here, the eyes are flickering, and disappearing and appearing very fast. The green background starts to slightly turn red at certain times. If I turn on mouse control, it’s pretty wild.

I go to try to send some feedback data. It doesn’t go through, but the progress bar did load a little, and an estimated time was displayed, so that’s better than not starting last time. (I’ll post about it in a separate thread).

I do another calibration, and I get four stars. I said before that the flickering was mostly going on with the top three white circles, but the two side circles were also flickering between white and red pretty fast also.

I don’t see as much flickering right away, so I think something improved. However, the flickering, and rapid appearing/despairing of the animated eyes comes back at certain times.

I do another calibration, and I get five stars. As I stare at the direct feedback, the animated eyes are solid. I look around for a while. Maybe after 15 to 20 seconds, I get a very rapid flickering.

It’s a small sample size, but I think I notice that there are long solid/no flickering periods of time with 33, as opposed to 31, where the flickering was more constant. However, when it does flicker in 33, it’s very rapid, and when you turn on the mouse control, it’s more jumpy than I’ve ever seen it.

I try another calibration, and I get five stars. During this session, I feel like I got to the most precision than anything I’ve ever seen. The offset was, like, under 1 cm at all points.

I try another calibration later, but I get one star.

I try again, and I get another one star. I noticed that before the calibration started, the animated eyes flickered just a bit.

I try 4 more calibrations, and each time, I get one star. On a couple of them, I remember noticing that there was either some flickering before the start of the calibration, or at the end of the calibration. I’m assuming that there was flickering going on during the calibration, and that could be what caused the low results.

This morning, I tried another calibration in 33, and I got five stars. I don’t notice any flickering, so I quickly go to turn on mouse control. The accuracy is very good. After about 15 seconds, I get very rapid flickering again in the feedback again. When I turn on the mouse control, the offset is actually not that bad, but the cursor is rapidly jumping all over the place.

28

I downgrade to 28, and I get a calibration of five stars. There’s no flickering whatsoever. I turn on mouse control to try to compare it to 33. Since there’s no flickering, the mouse cursor is rarely jumping. The accuracy is all right, so perhaps those good experiences with 33 weren’t that much of an improvement, if any. As I continue with 28, I noticed that there is an offset of, maybe, 2 cm offset as the gaze goes along near the topmost region of the screen.

Thanks for reading. I hope I can successfully send a feedback package soon, as my post is still all anecdotal.
Last edited by JeffKang on 01 May 2014, 09:53, edited 1 time in total.
JeffKang
 
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Re: 4 and 5 calibration every time last week; now, can’t pas

Postby Martin » 29 Apr 2014, 16:27

Hi Jeff,

Thanks for the feedback. It's very valuable for us to hear how it behaves. There was some changes introduced in version 31 that went out a little too early. Version 33 seems to have stabilized it and the upcoming release will improve things further.

A new advanced calibration model has been in R&D on a parallel track for several months and is targeted for the v1.0 release. It will bring noticeable improvements.

Before it is ready there will be a couple of iterations for stability and maintenance.
Martin
 
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Joined: 29 Oct 2013, 15:20

Re: 4 and 5 calibration every time last week; now, can’t pas

Postby Martin » 30 Apr 2014, 17:02

Btw, just updated to Windows 8.1 and found a little bug that makes the calibration result look Poor even if the tracking and accuracy is good. It relates to the Windows 8 handling of DPI scaling and values exposed on the .Net API. We will have that fixed for the next update.
Martin
 
Posts: 567
Joined: 29 Oct 2013, 15:20

Re: 4 and 5 calibration every time last week; now, can’t pas

Postby Martin » 07 May 2014, 19:12

This is hopefully resolved with the new 0.9.35 version just released. Let me know how it works out for you.
Martin
 
Posts: 567
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