Augmented reality ( AR ) is important for training complex tasks, such as navigation, assembly, and medical procedures. The effectiveness of such training may depend on accurate spatial localization of AR objects in the environment. This article presents two experiments that test egocentric distance perception in augmented reality within and at the boundaries of action space (up to 35 m) in comparison with distance perception in a matched real-world ( RW ) environment. Using the Microsoft HoloLens, in Experiment 1, participants in two different RW settings judged egocentric distances (ranging from 10 to 35 m) to an AR avatar or a real person using a visual matching measure. Distances to augmented targets were underestimated compared to real targets in the two indoor, RW contexts. Experiment 2 aimed to generalize the results to an absolute distance measure using verbal reports in one of the indoor environments. Similar to Experiment 1, distances to augmented targets were underestimated compared to real targets. We discuss these findings with respect to the importance of methodologies that directly compare performance in real and mediated environments, as well as the inherent differences present in mediated environments that are “matched” to the real world.

中文翻译：

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在增强现实中估计动作空间中的距离

增强现实(增强现实) 对于训练复杂的任务很重要，例如导航、装配和医疗程序。这种训练的有效性可能取决于环境中 AR 对象的准确空间定位。本文介绍了两个实验，在增强现实中测试以自我为中心的距离感知在动作空间（最大 35 m）内和边界处，并与匹配的距离感知进行比较。真实世界(RW） 环境。在实验 1 中，使用 Microsoft HoloLens，两种不同 RW 设置的参与者使用视觉匹配测量判断与 AR 化身或真人的以自我为中心的距离（范围从 10 到 35 m）。与两个室内 RW 环境中的真实目标相比，增强目标的距离被低估了。实验 2 旨在将结果推广到使用其中一种室内环境中的口头报告的绝对距离测量。与实验 1 类似，与真实目标相比，增强目标的距离被低估了。我们讨论了这些发现，即直接比较真实环境和中介环境中性能的方法的重要性，以及与现实世界“匹配”的中介环境中存在的固有差异。