Peripheral vision plays a significant role in human perception and orientation. However, its relevance for human-computer interaction, especially head-mounted displays, has not been fully explored yet. In the past, a few specialized appliances were developed to display visual cues in the periphery, each designed for a single specific use case only. A multi-purpose headset to exclusively augment peripheral vision did not exist yet. We introduce MoPeDT: Modular Peripheral Display Toolkit, a freely available, flexible, reconfigurable, and extendable headset to conduct peripheral vision research. MoPeDT can be built with a 3D printer and off-the-shelf components. It features multiple spatially configurable near-eye display modules and full 3D tracking inside and outside the lab. With our system, researchers and designers may easily develop and prototype novel peripheral vision interaction and visualization techniques. We demonstrate the versatility of our headset with several possible applications for spatial awareness, balance, interaction, feedback, and notifications. We conducted a small study to evaluate the usability of the system. We found that participants were largely not irritated by the peripheral cues, but the headset's comfort could be further improved. We also evaluated our system based on established heuristics for human-computer interaction toolkits to show how MoPeDT adapts to changing requirements, lowers the entry barrier for peripheral vision research, and facilitates expressive power in the combination of modular building blocks.

翻译：周边视觉在人类感知和定向中发挥着重要作用。然而，其与人机交互（特别是头戴式显示器）的相关性尚未得到充分探索。过去，人们开发了一些专用设备来显示视野边缘的视觉提示，但每种设备仅针对单一特定用例设计。目前尚不存在一种专门用于增强周边视觉的多功能头戴设备。我们提出MoPeDT：模块化周边显示工具包，这是一种免费提供、灵活、可重构且可扩展的头戴设备，用于进行周边视觉研究。MoPeDT可由3D打印机制造，并采用现成组件构建。它配备多个可空间配置的近眼显示模块，并在实验室内外均支持完整的3D追踪。借助该系统，研究人员和设计者可轻松开发和原型化新型周边视觉交互与可视化技术。我们通过若干潜在应用（包括空间感知、平衡、交互、反馈和通知）展示了该头戴设备的多样性。我们进行了一项小型研究以评估该系统的可用性。结果发现，参与者基本未受到周边视觉提示的干扰，但头戴设备的舒适度仍有进一步提升空间。我们还基于人机交互工具包的既定启发式评估标准对系统进行了评估，展示了MoPeDT如何适应变化的需求、降低周边视觉研究的准入门槛，并通过模块化构建块的组合增强表现力。