Eye Tracking Mobile Devices

Very interesting piece from the Tobii blog and download of an extensive white paper on the subject.

Eye tracking the use of mobile devices

With a worldwide increase in the number of mobile devices, interest in eye‐tracking studies on these devices has also increased. Eye tracking can provide valuable information on a number of areas, such as how well a graphical interface works, where on a physical device the user looks for certain options (such as buttons) and how the user’s attention shifts between the different parts of the phone when interacting with it. However, carrying out eye tracking tests on such small devices is not an uncomplicated task. Due to the way the human eye works, we are able to see a large part of the mobile device even if only one fixation has been registered by the eye tracker. Also the accuracy of the eye tracker (which is about 0.5° for all Tobii models) plays a more significant role the smaller the interface becomes. In addition, as the mobile device is three‐dimensional, eye tracking interaction with it can result in data offsets and errors if not set up properly. In order to overcome these issues, several different set‐ups have been developed..... '
-