Eye Tracking
We use the state of the art eye-tracking from Tobii for usability design testing and evaluation. The eye-tracker is used to record and analyse in real-time, users interactions with visual designs.
play Video Clip of Eye Tracking Scan Replay- Download QuickTime to view video clip
The eye tracker captures eye movement unobtrusively as people look at web sites on, what at first glance is a normal flat pC screen, but which actually has a camera recording eye movements, integrated into its base.
Web page and software designers can see from the tracker’s output where a person looks, their viewing strategies and infer their intensions and even their state of mind. Studies are completed quickly and easily. No special environment is required nor does the system require the participant to wear any form of head gear.
Understanding how people view your web site or other visual media is very important, as is knowledge of what people do or do not look at. The eye tracker enables accurate, immediate, quantitative data to be fed back in to the design process at any stage of a web site’s or software’s development. This could lead to improved product awareness or increased sales and improved customer satisfaction.
After an extensive search and experience with other eye tracking systems the university chose the Tobii eye tracker. It is state of the art, stylish in design, unobtrusive and is straightforward to use. It can accept material for evaluation in several formats image files, computer applications, web browsers, moving bit maps, AVI movies and video. Calibration normally takes less than 60 seconds. Eye locations are recorded 50 times per second with an accuracy of less than 1? across the entire scene being viewed. The system tolerates a degree of head movement. Analysis of the data is done by software and the results can be output in a variety of formats including formats compatible with spreadsheet applications enabling further analysis if required.
Hot Spots
The yellow-red areas on the image give a pictorial view
of where the eyes of a participant pause briefly to read the information.
Video Clip of Scan path
The blue circles connected by straight lines indicate gaze trails. The diameter of the circles reflects the duration of the fixation at that point. The numbers in the circles denote the sequence of the gazes.