Fixation identification in centroid versus start-point modes using eye-tracking data
dc.contributor.author | Falkmer, Torbjorn | |
dc.contributor.author | Dahlman, J. | |
dc.contributor.author | Dukic, T. | |
dc.contributor.author | Bjällmark, A. | |
dc.contributor.author | Larsson, M. | |
dc.date.accessioned | 2017-01-30T13:17:54Z | |
dc.date.available | 2017-01-30T13:17:54Z | |
dc.date.created | 2016-09-12T08:36:27Z | |
dc.date.issued | 2008 | |
dc.identifier.citation | Falkmer, T. and Dahlman, J. and Dukic, T. and Bjällmark, A. and Larsson, M. 2008. Fixation identification in centroid versus start-point modes using eye-tracking data. Perceptual and Motor Skills. 106 (3): pp. 710-724. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/30165 | |
dc.identifier.doi | 10.2466/PMS.106.3.710-724 | |
dc.description.abstract |
Fixation-identification algorithms, needed for analyses of eye movements, may typically be separated into three categories, viz. (i) velocity-based algorithms, (ii) area-based algorithms, and (iii) dispersion-based algorithms. Dispersion-based algorithms are commonly used but this application introduces some difficulties, one being optimization. Basically, there are two modes to reach this goal of optimization, viz., the start-point mode and the centroid mode. The aim of the present study was to compare and evaluate these two dispersion-based algorithms. Manual inspections were made of 1,400 fixations in each mode. Odds ratios showed that by using the centroid mode for fixation detection, a valid fixation is 2.86 times more likely to be identified than by using the start-point mode. Moreover, the algorithm based on centroid mode dispersion showed a good interpretation speed, accuracy, robustness, and ease of implementation, as well as adequate parameter settings. © Perceptual and Motor Skills 2008. | |
dc.publisher | Ammons Scientific Ltd. | |
dc.title | Fixation identification in centroid versus start-point modes using eye-tracking data | |
dc.type | Journal Article | |
dcterms.source.volume | 106 | |
dcterms.source.number | 3 | |
dcterms.source.startPage | 710 | |
dcterms.source.endPage | 724 | |
dcterms.source.issn | 0031-5125 | |
dcterms.source.title | Perceptual and Motor Skills | |
curtin.department | School of Occupational Therapy and Social Work | |
curtin.accessStatus | Fulltext not available |
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