TY  - JOUR
AU  - David Berga
AU  - Xose R. Fernandez-Vidal
AU  - Xavier Otazu
AU  - V. Leboran
AU  - Xose M. Pardo
PY  - 2019//
TI  - Psychophysical evaluation of individual low-level feature influences on visual attention
T2  - VR
JO  - Vision Research
SP  - 60
EP  - 79
VL  - 154
KW  - Visual attention
KW  - Psychophysics
KW  - Saliency
KW  - Task
KW  - Context
KW  - Contrast
KW  - Center bias
KW  - Low-level
KW  - Synthetic
KW  - Dataset
N2  - In this study we provide the analysis of eye movement behavior elicited by low-level feature distinctiveness with a dataset of synthetically-generated image patterns. Design of visual stimuli was inspired by the ones used in previous psychophysical experiments, namely in free-viewing and visual searching tasks, to provide a total of 15 types of stimuli, divided according to the task and feature to be analyzed. Our interest is to analyze the influences of low-level feature contrast between a salient region and the rest of distractors, providing fixation localization characteristics and reaction time of landing inside the salient region. Eye-tracking data was collected from 34 participants during the viewing of a 230 images dataset. Results show that saliency is predominantly and distinctively influenced by: 1. feature type, 2. feature contrast, 3. temporality of fixations, 4. task difficulty and 5. center bias. This experimentation proposes a new psychophysical basis for saliency model evaluation using synthetic images.
UR  - https://doi.org/10.1016/j.visres.2018.10.006
L1  - http://refbase.cvc.uab.es/files/BFO2019a.pdf
N1  - NEUROBIT; 600.128; 600.120
ID  - David Berga2019
ER  -