Selective quality rendering by exploiting human inattentional blindness: looking but not seeing
VRST '02 Proceedings of the ACM symposium on Virtual reality software and technology
ARTag, a Fiducial Marker System Using Digital Techniques
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
Measuring Presence in Virtual Environments: A Presence Questionnaire
Presence: Teleoperators and Virtual Environments
Eye tracking within the packaging design workflow: interaction with physical and virtual shelves
Proceedings of the 1st Conference on Novel Gaze-Controlled Applications
Comparison of eye movement metrics recorded at different sampling rates
Proceedings of the Symposium on Eye Tracking Research and Applications
Comparison of eye movement metrics recorded at different sampling rates
Proceedings of the Symposium on Eye Tracking Research and Applications
Proceedings of the Symposium on Eye Tracking Research and Applications
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Fiducial markers are used with head-mounted eye trackers to facilitate eye movement data aggregation for quantitative analysis. However, use of these markers may be problematic in some situations (e.g., natural tasks) as the markers may be visually distracting. To date, we are aware of no study that has examined the conspicuity of such markers to determine how much (if any) effort should be expended into concealing them from view. This paper presents a study that examines Tobii's infra-red (IR) markers' conspicuity in a 2-D projected environment. Results indicate that even when these 3-D markers are superimposed on a canvas on which the 2-D environment is projected, and no effort is taken to hide them (i.e., by minimizing contrast with the background), the presence of markers does not significantly alter the number or duration of fixations on the location of the markers when a specific task is given.