Opportunistic controls: leveraging natural affordances as tangible user interfaces for augmented reality
Opportunistic controls: leveraging natural affordances as tangible user interfaces for augmented reality
复制标题
机会主义控制:利用自然可供性作为增强现实的有形用户界面
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
Steven K. Feiner
中科院分区:
文献类型:
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作者:
S. Henderson;Steven K. Feiner
We present Opportunistic Controls, a class of user interaction techniques for augmented reality (AR) applications that support gesturing on, and receiving feedback from, otherwise unused affordances already present in the domain environment. Opportunistic Controls leverage characteristics of these affordances to provide passive haptics that ease gesture input, simplify gesture recognition, and provide tangible feedback to the user. 3D widgets are tightly coupled with affordances to provide visual feedback and hints about the functionality of the control. For example, a set of buttons is mapped to existing tactile features on domain objects. We describe examples of Opportunistic Controls that we have designed and implemented using optical marker tracking, combined with appearance-based gesture recognition. We present the results of a user study in which participants performed a simulated maintenance inspection of an aircraft engine using a set of virtual buttons implemented both as Opportunistic Controls and using simpler passive haptics. Opportunistic Controls allowed participants to complete their tasks significantly faster and were preferred over the baseline technique.