4.5 Article

Saliency-Aware Subtle Augmentation Improves Human Visual Search Performance in VR

期刊

BRAIN SCIENCES
卷 11, 期 3, 页码 -

出版社

MDPI
DOI: 10.3390/brainsci11030283

关键词

visual search; virtual reality; subtle visual augmentation; realistic visual scenes

资金

  1. University of Tubingen, Germany

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The study investigated the potential of improving visual search performance through subtle saliency-aware modulation of the scene. Results showed that blurring salient regions can help participants find the target faster, which has potential implications for enhancing user performance in everyday visual search tasks.
Visual search becomes challenging when the time to find the target is limited. Here we focus on how performance in visual search can be improved via a subtle saliency-aware modulation of the scene. Specifically, we investigate whether blurring salient regions of the scene can improve participant's ability to find the target faster when the target is located in non-salient areas. A set of real-world omnidirectional images were displayed in virtual reality with a search target overlaid on the visual scene at a pseudorandom location. Participants performed a visual search task in three conditions defined by blur strength, where the task was to find the target as fast as possible. The mean search time, and the proportion of trials where participants failed to find the target, were compared across different conditions. Furthermore, the number and duration of fixations were evaluated. A significant effect of blur on behavioral and fixation metrics was found using linear mixed models. This study shows that it is possible to improve the performance by a saliency-aware subtle scene modulation in a challenging realistic visual search scenario. The current work provides an insight into potential visual augmentation designs aiming to improve user's performance in everyday visual search tasks.

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