Interaction with virtual objects displayed in Optical See-through Augmented Reality is still mostly done with controllers or hand gestures. A much more intuitive way of interacting with virtual content is to use physical proxy objects to interact with the virtual objects. Here, the virtual model is superimposed on a physical object, which can then be touched and moved to interact with the virtual object. Since it is not possible to use an exact replica as a tangible proxy object for every use case, we conducted a study to determine the extent to which the shape of the physical object can deviate from the shape of the virtual object without massively impacting performance and usability, as well as the sense of presence. Our study, in which we investigated different levels of abstraction for a sofa model, shows that the physical proxy object can be abstracted to a certain degree. At the same time, our results indicate that the physical object must have at least a similar shape as the virtual object in order to serve as a suitable proxy.

翻译：在光学透视增强现实中与虚拟对象进行交互仍然主要依赖于控制器或手势。一种更为直观的虚拟内容交互方式是使用实体代理对象与虚拟对象进行交互。在此过程中，虚拟模型叠加于实体对象之上，用户可以通过触摸和移动该实体对象来与虚拟对象进行交互。由于无法针对每种应用场景都制作精确的实体代理副本，我们开展了一项研究，以确定实体对象形状与虚拟对象形状在多大程度上可以存在偏差，而不会对操作性能、可用性以及存在感造成显著影响。我们的研究针对沙发模型探索了不同抽象层次，结果表明实体代理对象可以有一定程度的抽象化。同时，我们的研究结果指出，实体对象至少需要与虚拟对象具有相似的形状，才能作为合适的代理对象。