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Measuring dwell time percentage from head-mounted eye-tracking data: comparison of a frame-by-frame and a fixation-by-fixation analysis

Pieter Vansteenkiste (UGent) , Greet Cardon (UGent) , Renaat Philippaerts (UGent) and Matthieu Lenoir (UGent)
(2015) ERGONOMICS. 58(5). p.712-721
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Abstract
Although analysing software for eye-tracking data has significantly improved in the past decades, the analysis of gaze behaviour recorded with head-mounted devices is still challenging and time-consuming. Therefore, new methods have to be tested to reduce the analysis workload while maintaining accuracy and reliability. In this article, dwell time percentages to six areas of interest (AOIs), of six participants cycling on four different roads, were analysed both frame-by-frame and in a 'fixation-by-fixation' manner. The fixation-based method is similar to the classic frame-by-frame method but instead of assigning frames, fixations are assigned to one of the AOIs. Although some considerable differences were found between the two methods, a Pearson correlation of 0.930 points out a good validity of the fixation-by-fixation method. For the analysis of gaze behaviour over an extended period of time, the fixation-based approach is a valuable and time-saving alternative for the classic frame-by-frame analysis.
Keywords
eye-tracking methodology, dwell time, frame-by-frame analysis, head-mounted eye tracking, gaze behaviour, VISUAL-SEARCH BEHAVIOR, TASK CONSTRAINTS, PERCEPTION, SPEED, PATH

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MLA
Vansteenkiste, Pieter, Greet Cardon, Renaat Philippaerts, et al. “Measuring Dwell Time Percentage from Head-mounted Eye-tracking Data: Comparison of a Frame-by-frame and a Fixation-by-fixation Analysis.” ERGONOMICS 58.5 (2015): 712–721. Print.
APA
Vansteenkiste, Pieter, Cardon, G., Philippaerts, R., & Lenoir, M. (2015). Measuring dwell time percentage from head-mounted eye-tracking data: comparison of a frame-by-frame and a fixation-by-fixation analysis. ERGONOMICS, 58(5), 712–721.
Chicago author-date
Vansteenkiste, Pieter, Greet Cardon, Renaat Philippaerts, and Matthieu Lenoir. 2015. “Measuring Dwell Time Percentage from Head-mounted Eye-tracking Data: Comparison of a Frame-by-frame and a Fixation-by-fixation Analysis.” Ergonomics 58 (5): 712–721.
Chicago author-date (all authors)
Vansteenkiste, Pieter, Greet Cardon, Renaat Philippaerts, and Matthieu Lenoir. 2015. “Measuring Dwell Time Percentage from Head-mounted Eye-tracking Data: Comparison of a Frame-by-frame and a Fixation-by-fixation Analysis.” Ergonomics 58 (5): 712–721.
Vancouver
1.
Vansteenkiste P, Cardon G, Philippaerts R, Lenoir M. Measuring dwell time percentage from head-mounted eye-tracking data: comparison of a frame-by-frame and a fixation-by-fixation analysis. ERGONOMICS. 2015;58(5):712–21.
IEEE
[1]
P. Vansteenkiste, G. Cardon, R. Philippaerts, and M. Lenoir, “Measuring dwell time percentage from head-mounted eye-tracking data: comparison of a frame-by-frame and a fixation-by-fixation analysis,” ERGONOMICS, vol. 58, no. 5, pp. 712–721, 2015.
@article{5808206,
  abstract     = {Although analysing software for eye-tracking data has significantly improved in the past decades, the analysis of gaze behaviour recorded with head-mounted devices is still challenging and time-consuming. Therefore, new methods have to be tested to reduce the analysis workload while maintaining accuracy and reliability. In this article, dwell time percentages to six areas of interest (AOIs), of six participants cycling on four different roads, were analysed both frame-by-frame and in a 'fixation-by-fixation' manner. The fixation-based method is similar to the classic frame-by-frame method but instead of assigning frames, fixations are assigned to one of the AOIs. Although some considerable differences were found between the two methods, a Pearson correlation of 0.930 points out a good validity of the fixation-by-fixation method. For the analysis of gaze behaviour over an extended period of time, the fixation-based approach is a valuable and time-saving alternative for the classic frame-by-frame analysis.},
  author       = {Vansteenkiste, Pieter and Cardon, Greet and Philippaerts, Renaat and Lenoir, Matthieu},
  issn         = {0014-0139},
  journal      = {ERGONOMICS},
  keywords     = {eye-tracking methodology,dwell time,frame-by-frame analysis,head-mounted eye tracking,gaze behaviour,VISUAL-SEARCH BEHAVIOR,TASK CONSTRAINTS,PERCEPTION,SPEED,PATH},
  language     = {eng},
  number       = {5},
  pages        = {712--721},
  title        = {Measuring dwell time percentage from head-mounted eye-tracking data: comparison of a frame-by-frame and a fixation-by-fixation analysis},
  url          = {http://dx.doi.org/10.1080/00140139.2014.990524},
  volume       = {58},
  year         = {2015},
}

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