Current augmented reality displays still have a very limited field of view compared to the human vision. In order to localize out-of-view objects, researchers have predominantly explored visual guidance approaches to visualize information in the limited (in-view) screen space. Unfortunately, visual conflicts like cluttering or occlusion of information often arise, which can lead to search performance issues and a decreased awareness about the physical environment. In this paper, we compare an innovative non-visual guidance approach based on audio-tactile cues with the state-of-the-art visual guidance technique EyeSee360 for localizing out-of-view objects in augmented reality displays with limited field of view. In our user study, we evaluate both guidance methods in terms of search performance and situation awareness. We show that although audio-tactile guidance is generally slower than the well-performing EyeSee360 in terms of search times, it is on a par regarding the hit rate. Even more so, the audio-tactile method provides a significant improvement in situation awareness compared to the visual approach.

中文翻译：

---

比较窄视野增强现实显示的非视觉和视觉指导方法。

与人类视觉相比，当前的增强现实显示器的视野仍然非常有限。为了定位视野外的对象，研究人员主要探索了视觉引导方法，以在有限的（视野内）屏幕空间中可视化信息。不幸的是，经常会发生视觉冲突，例如信息混乱或阻塞，这可能会导致搜索性能问题以及对物理环境的意识下降。在本文中，我们将基于音频触觉提示的创新型非视觉引导方法与最新的视觉引导技术EyeSee360进行了比较，该技术可在视野有限的增强现实显示器中定位视野外的对象。在我们的用户研究中，我们根据搜索性能和态势感知来评估两种指导方法。我们显示，尽管在搜索时间方面，音频触觉导航通常比性能良好的EyeSee360慢，但在命中率上却可以相提并论。甚至，与视觉方法相比，音频触觉方法在态势感知方面也有显着改善。