Influence of Low-Level Stimulus Features, Task Dependent Factors, and Spatial Biases on Overt Visual Attention
Figure 12
Computation of stimulus dependent salience.
For each bubble, stimulus dependent salience was computed by considering the luminance and texture contrast map of the embedding full field (A and C). Luminance and texture contrast at the location of the bubble (marked by red circles for one example bubble) are then mapped to fixation probabilities (red dots). These mappings (B and D) map luminance and texture contrast bins (see text) to fixation probabilities and were obtained in a baseline study using a large number of stimuli from different categories. The resulting fixation probabilities based on luminance and texture contrast were multiplied yielding the stimulus dependent salience.