Human-Computer Interaction in Spatial Augmented Reality

我们正处于下一个计算范式的黎明，我们周围的一切都将通过数字信息得到增强。多个投影仪相机单元不再只能通过手机或特殊眼镜查看增强现实，而是将可寻址像素放置在任意物体和表面上，以创建空间增强现实（SAR）。这将意味着我们访问数字信息的方式发生革命性的变化。例如：在手术过程中以无菌且整洁的方式访问手术预可视化；智能家居和物联网无处不在的显示方式；更灵活、更方便地使用办公室和设计工作室的展示空间；以及人力制造和维护方面的培训和定制的新可能性。目前公司正在开发SAR显示技术，但显示信息只是解决方案的一部分。人机交互 (HCI) 研究有一个基本的开放性问题：“人类输入应如何集成到 SAR 中？” ******该候选人已获得资金建造一个 180 万美元的设施，用于在非沉浸式交互式 SAR（我们称之为完全交互式物理数字空间，或“FIPS”）中进行人机交互研究。拟议的研究计划支持 HQP 使用这一最先进的设施专门探索远距离执行时的 SAR 输入和交互。这两个目标是： 提供表征和模拟远程输入的实证结果；发明实用、可用、舒适、高效的远程交互技术。这些目标将通过三个工作流来实现，每个工作流都侧重于一种输入环境。 Stream 1 侧重于基于设备的输入，并探索使用智能手表来操作 SAR 中的内容（作为目前实用的技术），以及受候选人接触感应“Conté”的启发，发明了一种全新类型的手持设备。分流 2 的重点是基于手的输入，它研究了在 SAR 中使用徒手交互时的关键研究问题：模式切换、视觉反馈和基于手的交互的最佳风格。第 3 部分着眼于隐式全身姿势（如坐着或站立）和显性身体动作（如足部轻拍）如何增强和完善第 1 部分和第 2 部分中的技术。最后，一个顶点主题将示例 SAR 演示应用程序中的所有结果联系在一起，并将研究结果编码到 HCI SAR 开发工具包中。******拟议的研究计划将通过在一个特定的领域中发明 HCI 的未来，培训 4 名博士、3 名硕士和多名本科生的核心 HCI 研究技能。尖端技术设施。拟议研究的结果将是更好地了解基于人类需求和能力的 SAR 交互潜力，并最终发明新的交互技术和方法，引领商业应用之路。

We are at the dawn of the next computing paradigm, where everything around us will be augmented with digital information. Instead of an augmented reality viewable only through a phone or special glasses, multiple projector-camera units will place addressable pixels on arbitrary objects and surfaces to create a Spatial Augmented Reality (SAR). This will mean a revolutionary change in how we access digital information. For example: a sterile and clutter-free way for surgical pre-visualizations to be accessed during an operation; a ubiquitous display method for smart homes and the internet of things; a more flexible and accessible use of display space in offices and design studios; and new possibilities for training and customization in human-powered manufacturing and maintenance. Companies are developing SAR display technologies now, but displaying information is only part of the solution. There is a fundamental open question for Human-Computer Interaction (HCI) research: “How should human input be integrated into SAR?” ******The candidate has already secured funds to build a $1.8 million facility to conduct HCI research in non-immersive, interactive SAR (which we call Fully Interactive Physio-digital Spaces, or “FIPS”). The proposed research program supports HQP to use this state-of-the-art facility to specifically explore SAR input and interaction when performed at a distance. The two objectives are: contribute empirical results which characterise and model distant input; and invent distant interaction techniques that are practical, usable, comfortable, and efficient. These objectives will be pursued as three streams of work, each focused on one input context. Stream 1 focuses on device-based input, and explores using a smartwatch to manipulate content in SAR (as a technology that is currently practical), as well as inventing a totally new type of hand-held device inspired by the candidate's contact-sensing “Conté”. The focus of stream 2 is hand-based input, which investigates key research problems when using bare hands to interact in SAR: mode-switching, visual feedback, and the best style of hand-based interaction. Stream 3 looks at how implicit whole-body poses (like sitting or standing) and explicit body movements (like foot taps) can augment and refine techniques from streams 1 and 2. Finally, a capstone topic ties all results together in an exemplar SAR demonstration application and encodes findings in a HCI SAR development toolkit.******The proposed research program will train 4 PhD, 3 Master's, and multiple undergraduates in core HCI research skills by inventing the future of HCI in a cutting-edge technology facility. The results of the proposed research will be a greater understanding for the potential of SAR interaction based on human needs and capabilities, and ultimately, the invention of new interaction techniques and methods to lead the way towards commercial applications.