Home Forums Eye Tracking Devices Pupil dilation with EyeX

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
  • #380

    Will the EyeX be able to track pupil dilation in realtime?

    I’ve got an initial no answer from Konstantin saying the EyeX SDK isn’t capable, but using the Analytics SDK should suffice.

    Can someone reconfirm that EyeX using the Analytics SDK will enable pupil dilation tracking in realtime?


    Robert [Tobii]

    Hi @seanm,

    The EyeX Controller and Tobii REX eye trackers are not compatible with the Analytics SDK. To be able to measure pupil dilation, you’ll need a analytics eye tracker to use with the Analytics SDK, see more info here.

    Larry Molocznik

    We have built a concussion application using the tobii EyeX controller.
    It utilizes a Windows 8.1 laptop for the therapist with a 23″ secondary monitor for the patient.

    We have already automated a number of manual tests that medical professionals use to determine
    if an individual has a concussion.
    We would very much like to see pupil dilation included in the EyeX Api so that we can add
    this to our collection of concussion eye tests.

    While gaming appears to be the largest focus, at this time, for eye tracking capabilities,
    we feel there is a large market for non-gaming applications that will use eye tracking
    and we are well on our way to make that happen.


    thanks for the feedback!

    In general we have different eye tracking devices as well as sdk’s, depending on the requirements. So the Gaze SDK & EyeX SDK are interaction SDK’s, so to be used to interact with Windows devices. The EyeX SDK comes with an engine which e.g. detects click able objects in Windows and makes it very easy for developers to interact and integrate.

    Pupil dilation has nothing to do with interaction, instead it’s related to analytical purposes, and from that standpoint it’s very difficult for us to prioritize and/or integrate that into our interaction SDK’s.
    If you need pupil dilation, you will need to use our Analysis SDK which is not compatible with the Tobii EyeX controller.

    As a side note I would also like to publish a link to the Gaze SDK & EyeX SDK license agreements, as it might be worth having a look at “Privacy and integrity”.
    EyeX SDK: http://developer.tobii.com/wp-content/uploads/2014/06/EyeX-SDK-License-Agreement.pdf
    Gaze SDK: http://developer.tobii.com/wp-content/uploads/download-manager-files/GazeSDK/Tobii%20Gaze%20SDK%20License%20Agreement.pdf


    Larry Molocznik

    Could we get you to move pupil dilation higher up on your to-do list
    if I were to tell you that we are building a video game that wanted
    to determine if the user was stoned !


    Pupil dilation could definitely be used for games!!! There are several pupillary analyses that can provide “workload” in near real time. It would be awesome to use this information to mediate the difficulty of AI in order to maintain an optimal level of engagement of expert and novice players. This information could be used as an indicator of training across time… or you could modulate an enemy/boss’s health based on peak workload levels so that your “success” was partially based on the amount of effort put forth in defeating a boss… the possibilities are endless 😀

    …but I also understand that you don’t want to cannibalize the primary revenue generator of the company, i.e. the research/analytic products.

Viewing 6 posts - 1 through 6 (of 6 total)
  • You must be logged in to reply to this topic.