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Accuracy and precision of fixation locations recorded with the low-cost Eye Tribe tracker in different experimental setups

Kristien Ooms (UGent) , Lien Dupont (UGent) , Lieselot Lapon (UGent) and Stanislav Popelka
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Abstract
This article compares the accuracy and precision of the low-cost Eye Tribe tracker and a well-established comparable eye tracker: SMI RED 250. Participants were instructed to fixate on predefined point locations on a screen. The accuracy is measured by the distance between the recorded fixation locations and the actual location. Precision is represented by the standard deviation of these measurements. Furthermore, the temporal precision of both eye tracking devices (sampling rate) is evaluated as well. The obtained results illustrate that a correct set-up and selection of software to record and process the data are of utmost importance to obtain acceptable results with the low-cost device. Nevertheless, with careful selections in each of these steps, the quality (accuracy and precision) of the recorded data can be considered comparable.
Keywords
THRESHOLD, TOOLBOX, IDENTIFICATION, PERCEPTION, MOVEMENTS, VISUAL-SEARCH, DATA QUALITY, fixation detection algorithm, eye tracker set-up evaluation, precision, accuracy, low-cost eye tracker

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Chicago
Ooms, Kristien, Lien Dupont, Lieselot Lapon, and Stanislav Popelka. 2015. “Accuracy and Precision of Fixation Locations Recorded with the Low-cost Eye Tribe Tracker in Different Experimental Setups.” Journal of Eye Movement Research 8 (1).
APA
Ooms, Kristien, Dupont, L., Lapon, L., & Popelka, S. (2015). Accuracy and precision of fixation locations recorded with the low-cost Eye Tribe tracker in different experimental setups. JOURNAL OF EYE MOVEMENT RESEARCH, 8(1).
Vancouver
1.
Ooms K, Dupont L, Lapon L, Popelka S. Accuracy and precision of fixation locations recorded with the low-cost Eye Tribe tracker in different experimental setups. JOURNAL OF EYE MOVEMENT RESEARCH. 2015;8(1).
MLA
Ooms, Kristien, Lien Dupont, Lieselot Lapon, et al. “Accuracy and Precision of Fixation Locations Recorded with the Low-cost Eye Tribe Tracker in Different Experimental Setups.” JOURNAL OF EYE MOVEMENT RESEARCH 8.1 (2015): n. pag. Print.
@article{8200216,
  abstract     = {This article compares the accuracy and precision of the low-cost Eye Tribe tracker and a well-established comparable eye tracker: SMI RED 250. Participants were instructed to fixate on predefined point locations on a screen. The accuracy is measured by the distance between the recorded fixation locations and the actual location. Precision is represented by the standard deviation of these measurements. Furthermore, the temporal precision of both eye tracking devices (sampling rate) is evaluated as well. The obtained results illustrate that a correct set-up and selection of software to record and process the data are of utmost importance to obtain acceptable results with the low-cost device. Nevertheless, with careful selections in each of these steps, the quality (accuracy and precision) of the recorded data can be considered comparable.},
  articleno    = {5},
  author       = {Ooms, Kristien and Dupont, Lien and Lapon, Lieselot and Popelka, Stanislav},
  issn         = {1995-8692},
  journal      = {JOURNAL OF EYE MOVEMENT RESEARCH},
  language     = {eng},
  number       = {1},
  pages        = {20},
  title        = {Accuracy and precision of fixation locations recorded with the low-cost Eye Tribe tracker in different experimental setups},
  url          = {http://dx.doi.org/10.16910/jemr.8.1.5},
  volume       = {8},
  year         = {2015},
}

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