Physical Guides: An Analysis of 3D Sketching Performance on Physical Objects in Augmented Reality
Physical Guides: An Analysis of 3D Sketching Performance on Physical Objects in Augmented Reality
复制标题
物理指南：增强现实中物理对象的 3D 草图性能分析
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Jan O. Borchers
中科院分区：
文献类型：
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作者：
Philippe Wacker;Simon Voelker;Adrian Wagner;Jan O. Borchers
除了在空中绘制素描外，增强现实（AR）允许用户素描直接连接到现有物理对象的3D设计。每当笔触摸笔时，这些对象都会提供天然的触觉反馈，与VR不同，无需先对物理对象进行数字化。尤其是在个人制造中，这使得非专业设计师可以快速创建适合现有物理物体的简单3D模型，例如灯罩的灯罩。我们将实体对象的指导类型分为平坦，凹形和凸表面，边缘和表面标记。我们研究了这些指南的准确程度，让用户绘制与AR中物理与虚拟对象相关的3D形状。结果表明，跟踪物理对象的准确性提高了48％，与虚拟对象相比，可以在类似的时间内执行。指导物理物体进一步提高了准确性，尤其是在垂直方向上。我们的发现在设计AR草图系统时提供了初始指标。
Besides sketching in mid-air, Augmented Reality (AR) lets users sketch 3D designs directly attached to existing physical objects. These objects provide natural haptic feedback whenever the pen touches them, and, unlike in VR, there is no need to digitize the physical object first. Especially in Personal Fabrication, this lets non-professional designers quickly create simple 3D models that fit existing physical objects, such as a lampshade for a lamp socket. We categorize guidance types of real objects into flat, concave, and convex surfaces, edges, and surface markings. We studied how accurately these guides let users draw 3D shapes attached to physical vs. virtual objects in AR. Results show that tracing physical objects is 48% more accurate, and can be performed in a similar time compared to virtual objects. Guides on physical objects further improve accuracy especially in the vertical direction. Our findings provide initial metrics when designing AR sketching systems.