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A 5 degrees of freedom multi-user pointing device for interactive whiteboards

机译：用于交互式白板的5自由度多用户指示设备

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Interactive whiteboards are nowadays rather common equipments in classrooms as they provide large advantages in terms of expressive power. Despite the radical paradigm shift, their interaction model is firmly tied to the archetypal concept of strokes and gestures over a whiteboard. In this paper we introduce a novel pointing device that enables one to escape the surface-based interaction, by means of a robust and occlusion-resilient multi-camera 3D tracking. More precisely, we designed a frequency-based active pen. By means of a camera network such pen can be localized in a 3D frame featuring the same 5 degrees of freedom exposed by a real whiteboard marker. Our approach allows for using many pointers at the same time, by reliably assigning an unique and permanent identity to each one. By levering on these capabilities, interaction designers can conceive new and inventive interaction models. A few of them have been implemented within this study and are described in the experimental part of this work.
机译：如今，交互式白板已成为教室中的通用设备，因为它们在表达能力方面具有很大的优势。尽管发生了根本的范式转换，但它们的交互模型仍牢固地与白板上的笔触和手势的原型概念联系在一起。在本文中，我们介绍了一种新颖的定点设备，该设备借助强大且具有遮挡力的多相机3D跟踪功能，可以逃脱基于表面的交互。更准确地说，我们设计了基于频率的有源笔。借助于摄像机网络，这种笔可以定位在3D框架中，该框架具有由真实白板笔所暴露的相同的5个自由度。通过可靠地为每个指针分配唯一且永久的身份，我们的方法允许同时使用多个指针。通过利用这些功能，交互设计人员可以构思出新颖的创造性交互模型。其中一些已在本研究中实施，并在本实验的实验部分中进行了描述。

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