The visible orientation of human eyes creates some transparency about people's spatial attention and other mental states. This leads to a dual role of the eyes as a means of sensing and communication. Accordingly, artificial eye models are being explored as communication media in human-machine interaction scenarios. One challenge in the use of eye models for communication consists of resolving spatial reference ambiguities, especially for screen-based models. To address this challenge, we introduce an approach that incorporates reflection-like features that are contingent on the movements of artificial eyes. We conducted a user study with 30 participants in which participants had to use spatial references provided by dynamic eye models to advance in a fast-paced group interaction task. Compared to a non-reflective eye model and a pure reflection mode, the superimposition of screen-based eyes with gaze-contingent virtual reflections resulted in a higher identification accuracy and user experience, suggesting a synergistic benefit.

翻译：人眼可见的朝向在一定程度上揭示了人类的空间注意力及其他心理状态，这使得眼睛同时具备感知与交流的双重功能。因此，在人机交互场景中，人工眼模型正被探索作为一种交流媒介。然而，利用眼模型进行交流面临着一个挑战：如何解决空间参照的模糊性问题，尤其是在基于屏幕的模型中。为应对这一挑战，我们提出了一种方法，该方法引入了依赖于人工眼运动的类反射特征。我们开展了一项包含30名参与者的用户研究，参与者需利用动态眼模型提供的空间参照，在快节奏的群体交互任务中取得进展。与无反射的眼模型及纯反射模式相比，基于屏幕的眼睛与注视相关的虚拟反射叠加，带来了更高的识别准确率和更好的用户体验，这表明二者存在协同增益效应。