Spatiotemporal Windows for Fixation Detection
نویسندگان
چکیده
Eye fixations are periods of relative stability derived from continuous eye position (or eye movement) data. In order to define eye fixations, researchers often assume that the eye(s) will not move beyond a particular spatiotemporal window (i.e., a spatial area towards which the eye is directed within a particular period of time). However, exact specifications of this window vary from field to field and even from one experiment to another. Efforts to standardize these specifications have assumed (either implicitly or explicitly) that there is one appropriate window size for describing eye behavior. The present paper explores an alternative approach. Specifically, we provide a method for determining the most appropriate spatiotemporal window that can vary from participant to participant (or task to task). This approach may also be extended to provide a metric for detection algorithm comparison.
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تاریخ انتشار 2014