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UIST
2009
ACM

Detecting and leveraging finger orientation for interaction with direct-touch surfaces

13 years 10 months ago
Detecting and leveraging finger orientation for interaction with direct-touch surfaces
Current interactions on direct-touch interactive surfaces are often modeled based on properties of the input channel that are common in traditional graphical user interfaces (GUI) such as x-y coordinate information. Leveraging additional information available on the surfaces could potentially result in richer and novel interactions. In this paper we specifically explore the role of finger orientation. This property is typically ignored in touch-based interactions partly because of the ambiguity in determining it solely from the contact shape. We present a simple algorithm that unambiguously detects the directed finger orientation vector in real-time from contact information only, by considering the dynamics of the finger landing process. Results of an experimental evaluation show that our algorithm is stable and accurate. We then demonstrate how finger orientation can be leveraged to enable novel interactions and to infer higher-level information such as hand occlusion or user positio...
Feng Wang, Xiang Cao, Xiangshi Ren, Pourang Irani
Added 28 May 2010
Updated 28 May 2010
Type Conference
Year 2009
Where UIST
Authors Feng Wang, Xiang Cao, Xiangshi Ren, Pourang Irani
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