TY - JOUR
T1 - A toolkit for wide-screen dynamic area of interest measurements using the Pupil Labs Core Eye Tracker
AU - Faraji, Yasmin
AU - van Rijn, Joris W.
AU - van Nispen, Ruth M.A.
AU - van Rens, Ger H.M.B.
AU - Melis-Dankers, Bart J.M.
AU - Koopman, Jan
AU - van Rijn, Laurentius J.
N1 - Funding Information: This research was funded by Stichting Uitzicht and Vision 2017 conference revenues. The funding organization had no role in the design or conduct of this research. Publisher Copyright: © 2022, The Author(s).
PY - 2022/10/17
Y1 - 2022/10/17
N2 - Eye tracking measurements taken while watching a wide field screen are challenging to perform. Commercially available remote eye trackers typically do not measure more than 35 degrees in eccentricity. Analysis software was developed using the Pupil Core Eye Tracking data to analyze viewing behavior under circumstances as natural as possible, on a 1.55-m-wide screen allowing free head movements. Additionally, dynamic area of interest (AOI) analyses were performed on data of participants viewing traffic scenes. A toolkit was created including software for simple allocation of dynamic AOIs (semi-automatically and manually), measurement of parameters such as dwell times and time to first entry, and overlaying gaze and AOIs on video. Participants (n =11) were asked to look at 13 dynamic AOIs in traffic scenes from appearance to disappearance in order to validate the setup and software. Different AOI margins were explored for the included objects. The median ratio between total appearance time and dwell time was about 90% for most objects when appropriate margins were chosen. This validated open-source toolkit is readily available for researchers who want to perform dynamic AOI analyses with the Pupil Core eye tracker, especially when measurements are desired on a wide screen, in various fields such as psychology, transportation, and low vision research.
AB - Eye tracking measurements taken while watching a wide field screen are challenging to perform. Commercially available remote eye trackers typically do not measure more than 35 degrees in eccentricity. Analysis software was developed using the Pupil Core Eye Tracking data to analyze viewing behavior under circumstances as natural as possible, on a 1.55-m-wide screen allowing free head movements. Additionally, dynamic area of interest (AOI) analyses were performed on data of participants viewing traffic scenes. A toolkit was created including software for simple allocation of dynamic AOIs (semi-automatically and manually), measurement of parameters such as dwell times and time to first entry, and overlaying gaze and AOIs on video. Participants (n =11) were asked to look at 13 dynamic AOIs in traffic scenes from appearance to disappearance in order to validate the setup and software. Different AOI margins were explored for the included objects. The median ratio between total appearance time and dwell time was about 90% for most objects when appropriate margins were chosen. This validated open-source toolkit is readily available for researchers who want to perform dynamic AOI analyses with the Pupil Core eye tracker, especially when measurements are desired on a wide screen, in various fields such as psychology, transportation, and low vision research.
KW - Dynamic area of interest
KW - Eye tracking
KW - Visual perception
UR - http://www.scopus.com/inward/record.url?scp=85140043252&partnerID=8YFLogxK
U2 - https://doi.org/10.3758/s13428-022-01991-5
DO - https://doi.org/10.3758/s13428-022-01991-5
M3 - Article
C2 - 36253600
SN - 1554-351X
JO - Behavior research methods
JF - Behavior research methods
ER -