A novel human-computer interface based on passive acoustic localisation

Authors:
D. T. Pham;Ze Ji;Ming Yang;Zuobin Wang;Mostafa Al-Kutubi
Affiliations:
Manufacturing Engineering Centre, Cardiff University, Cardiff, UK;Manufacturing Engineering Centre, Cardiff University, Cardiff, UK;Manufacturing Engineering Centre, Cardiff University, Cardiff, UK;Manufacturing Engineering Centre, Cardiff University, Cardiff, UK;Manufacturing Engineering Centre, Cardiff University, Cardiff, UK
Venue:
HCI'07 Proceedings of the 12th international conference on Human-computer interaction: interaction platforms and techniques
Year:
2007

Citing 2
Cited 1

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Abstract

This paper describes work aimed at developing new tangible computer interfaces that can be created out of almost any surface by detecting the vibrations generated when a user's finger interacts with the surface. Two modes of interaction have been considered: discrete impact and continuous scratching. Two methods for localising the point of impact have been investigated: Time Difference of Arrival (TDOA) and Location Template Matching (LTM). Tracking of the continuous movement of a finger scratching on a surface has been implemented by extending the TDOA method. These methods have been tested using solid objects of different materials and shapes. Experimental results have shown the potential of the presented technologies for real-time impact localisation in this new form of human-computer interfaces.