AuraRing
AuraRing
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光环
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Shwetak N. Patel
中科院分区：
文献类型：
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作者：
Farshid Salemi Parizi;Eric Whitmire;Shwetak N. Patel
智能手表和头戴式混合现实显示器等可穿戴计算平台需要新的输入设备来实现高保真交互。我们推出了 AuraRing，这是一种可穿戴磁性跟踪系统，专为跟踪细粒度的手指运动而设计。该硬件由一个带有嵌入式电磁发射器线圈的戒指和一个带有多个传感器线圈的腕带组成。通过测量手腕周围不同点的磁场，AuraRing 可以估计戒指的五个自由度姿势。我们开发了两种不同的姿势重建方法——第一原理迭代方法和封闭式神经网络方法。值得注意的是，AuraRing 不需要运行时监督训练，确保用户和会话的独立性。根据用户使用光学地面实况评估测得的结果，AuraRing 的分辨率为 0.1 毫米，动态精度为 4.4 毫米。该环完全独立，功耗仅为 2.3 mW。
Wearable computing platforms, such as smartwatches and head-mounted mixed reality displays, demand new input devices for high-fidelity interaction. We present AuraRing, a wearable magnetic tracking system designed for tracking fine-grained finger movement. The hardware consists of a ring with an embedded electromagnetic transmitter coil and a wristband with multiple sensor coils. By measuring the magnetic fields at different points around the wrist, AuraRing estimates the five degree-of-freedom pose of the ring. We develop two different approaches to pose reconstruction---a first-principles iterative approach and a closed-form neural network approach. Notably, AuraRing requires no runtime supervised training, ensuring user and session independence. AuraRing has a resolution of 0.1 mm and a dynamic accuracy of 4.4 mm, as measured through a user evaluation with optical ground truth. The ring is completely self-contained and consumes just 2.3 mW of power.