Remote guidance on physical tasks is a type of collaboration in which a local worker is guided by a remote helper to operate on a set of physical objects. It has many applications in industrial sections such as remote maintenance and how to support this type of remote collaboration has been researched for almost three decades. Although a range of different modern computing tools and systems have been proposed, developed and used to support remote guidance in different application scenarios, it is essential to provide communication cues in a shared visual space to achieve common ground for effective communication and collaboration. In this paper, we conduct a selective review to summarize communication cues, approaches that implement the cues and their effects on augmented reality based remote guidance. We also discuss challenges and propose possible future research and development directions.

物理任务的远程指导是一种协作类型，其中本地工作人员在远程助手的指导下对一组物理对象进行操作。它在工业领域有许多应用，例如远程维护，并且如何支持这种类型的远程协作已经研究了近三十年。尽管已经提出、开发和使用了一系列不同的现代计算工具和系统来支持不同应用场景中的远程指导，但在共享视觉空间中提供通信线索以实现有效通信和协作的共同基础是至关重要的。在本文中，我们进行了选择性审查，总结了沟通线索、实施线索的方法及其对基于增强现实的远程指导的影响。我们还讨论了挑战并提出了未来可能的研究和开发方向。