Ian Van Der Linde

Learn More
DOVES, a database of visual eye movements, is a set of eye movements collected from 29 human observers as they viewed 101 natural calibrated images. Recorded using a high-precision dual-Purkinje eye tracker, the database consists of around 30 000 fixation points, and is believed to be the first large-scale database of eye movements to be made available to(More)
— The ability to automatically detect visually interesting regions in images has many practical applications, especially in the design of active machine vision and automatic visual surveillance systems. Analysis of the statistics of image features at observers' gaze can provide insights into the mechanisms of fix-ation selection in humans. Using a foveated(More)
Recent years have seen a resurgent interest in eye movements during natural scene viewing. Aspects of eye movements that are driven by low-level image properties are of particular interest due to their applicability to biologically motivated artificial vision and surveillance systems. In this paper, we report an experiment in which we recorded observers'(More)
(a) (b) Figure 1. Gabor targets at 0, 20, 70 and 90 deg at (a) 8 cpd, and (b) 2 cpd. Examples of stimuli are shown with scan paths in (c). Our data are consistent with earlier parafoveal studies, but provided additional insight into observers' dynamic decision-making, highlighting different search strategies that predominate at different target frequencies(More)
Spectral results for signal absent (SA) data, constructed by averaging fixated tiles that did not contain the target, are shown for the two observers (Fig. 3A). SA results contain the most compelling data since they are not affected by the additive influence of the target in the tile as displayed, and result purely from random perturbations of noise that(More)
  • 1