Attachments-free Point and Click Device for the Disabled

描述（由申请人提供）：在这项工作的第一阶段，Vortant Technologies创建了一种新的点击式（VPAC）设备，用于非侵入性计算机输入。新设备跟踪用户头部的位置和方向，但不需要将设备、标记或点附接到用户。由于采用了创新的基于光的距离测量技术，该设备具有独特的低成本“免附件”功能。 I期VPAC器械的性能显著超过了拟定的成功标准。在用户评估期间，新的VPAC设备表现良好，几乎所有初学者和高级计算机用户都可以使用它来执行基本的计算机任务。用户反馈问卷和访谈显示，用户强烈喜欢新设备的无附件功能，这大大提高了他们在计算机访问中的独立性。 拟议的第二阶段项目的总体目标是在此基础上进行扩展，以创建具有真实产品外观、感觉和功能的VPAC原型。将对该设备进行人体工程学和功能改进，并对一组VPAC原型进行可用性评估，包括学习曲线研究和一个月的试用。

DESCRIPTION (provided by applicant): In Phase I of this work, Vortant Technologies created a new point-and-click (VPAC) device for non-invasive computer input. The new device tracks the position and orientation of the user's head, but requires no attachment of devices, markers, or dots to the user. The unique, low-cost "attachments-free" features of the device are possible due to an innovative light-based distance measuring technology. The performance of the Phase I VPAC device significantly exceeded the proposed success criteria. During user evaluation, the new VPAC device performed well, and could be used by nearly all beginners and advanced computer users for basic computer tasks. User feedback questionnaires and interviews showed that users strongly prefer the attachments-free features of the new device, which significantly enhances their level of independence in computer access. The overall aim of the proposed Phase II project is to expand on this foundation to create a VPAC prototype with the look, feel, and functionality of a real-world product. Ergonomic and functional improvements will be made to the device, and a set of VPAC prototypes will be evaluated for usability, including a learning-curve study and a one-month trial.