用手戴红外装置在任意表面精准识别触摸位置和距离。
EclipseTouch: Touch Segmentation on Ad Hoc Surfaces using Worn Infrared Shadow Casting
- 用红外投影与摄像头捕捉结构化阴影，实现无接触表面触控。
- 悬停距离估计误差仅6.9毫米，触摸识别准确率达98%。
- 适用于不同材质、角度和光照条件，适合混合现实设备使用。
在未加装传感器的日常表面上检测触摸事件，一直是混合现实系统长期追求的目标。以往研究显示，将虚拟界面绑定到物理表面，相比空中虚浮界面具有性能和人体工学优势。已有多种方法被提出，本文贡献了一种集成于头显的新技术 extit{EclipseTouch}。该技术结合计算机触发的摄像头与一个或多个红外发射器，生成结构化阴影，从而可精确估算悬停距离（平均误差6.9毫米）和触摸接触（准确率98.0%）。我们分析了该方法在不同表面材质、交互角度及环境光照条件下的表现。
原文摘要 · Abstract (English)
The ability to detect touch events on uninstrumented, everyday surfaces has been a long-standing goal for mixed reality systems. Prior work has shown that virtual interfaces bound to physical surfaces offer performance and ergonomic benefits over tapping at interfaces floating in the air. A wide variety of approaches have been previously developed, to which we contribute a new headset-integrated technique called \systemname. We use a combination of a computer-triggered camera and one or more infrared emitters to create structured shadows, from which we can accurately estimate hover distance (mean error of 6.9~mm) and touch contact (98.0\% accuracy). We discuss how our technique works across a range of conditions, including surface material, interaction orientation, and environmental lighting.
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