Comparing the roles of landmark visual salience and semantic salience in visual guidance during indoor wayfinding
Comparing the roles of landmark visual salience and semantic salience in visual guidance during indoor wayfinding
复制标题
比较地标视觉显着性和语义显着性在室内寻路过程中视觉引导中的作用
DOI：
10.1080/15230406.2019.1697965
复制
发表时间：
2019-12-15
影响因子：
2.5
通讯作者：
Liu, Jiping
中科院分区：
文献类型：
--
作者：
Dong, Weihua;Qin, Tong;Liu, Jiping
地标视觉显著性（特征是与周围环境和视觉特性形成对比的特征）和语义显著性（特征是在环境中具有不寻常或重要意义和内容的特征）是影响个体在寻路过程中视觉注意的两个重要因素。然而，经验证据表明，在室内寻路过程中，哪个因素主导视觉引导是罕见的，特别是在现实世界的环境中。在本研究中，我们假设语义显著性主导视觉注意的引导，这意味着语义显著性将比视觉显著性更显著地与被试的注视相关。值得注意的是，在以前的研究中，语义显著性被证明可以在实验室环境中引导静态图像或熟悉场景中的视觉注意。为了验证这一假设，首先，我们收集了22名参与者在穿过建筑物时的眼动数据。然后，我们分别使用计算机视觉模型和问卷调查来计算地标的视觉和语义显著性。最后，我们进行了相关性检验来验证我们的假设。结果未能验证我们的假设，并表明，在现实世界中的寻路过程中的视觉引导的显着性的作用是不同的感知静态图像或场景在实验室中的显着性的作用。在室内寻路过程中，视觉显著性主导视觉注意，但视觉引导中的显著性作用在不同的地标类和任务中是混合的。研究结果为理解行人在现实世界室内寻路过程中如何从视觉上解读地标信息提供了新的证据。
ABSTRACT Landmark visual salience (characterized by features that contrast with their surroundings and visual peculiarities) and semantic salience (characterized by features with unusual or important meaning and content in the environment) are two important factors that affect an individual’s visual attention during wayfinding. However, empirical evidence regarding which factor dominates visual guidance during indoor wayfinding is rare, especially in real-world environments. In this study, we assumed that semantic salience dominates the guidance of visual attention, which means that semantic salience will correlate with participants’ fixations more significantly than visual salience. Notably, in previous studies, semantic salience was shown to guide visual attention in static images or familiar scenes in a laboratory environment. To validate this assumption, first, we collected the eye movement data of 22 participants as they found their way through a building. We then computed the landmark visual and semantic salience using computer vision models and questionnaires, respectively. Finally, we conducted correlation tests to verify our assumption. The results failed to validate our assumption and show that the role of salience in visual guidance in a real-world wayfinding process is different from the role of salience in perceiving static images or scenes in a laboratory. Visual salience dominates visual attention during indoor wayfinding, but the roles of salience in visual guidance are mixed across different landmark classes and tasks. The results provide new evidence for understanding how pedestrians visually interpret landmark information during real-world indoor wayfinding.