Discrimination of tactile rendering on virtual surfaces

Alan C Brady, Ian Summers, Jianguo Qu, Charlotte Magnusson

Research output: Contribution to conferencePaper, not in proceedingpeer-review


An array of vibrating contactors on the fingertip can provide information about virtual objects during active exploration of a virtual environment – for example, information about contact area, edges, corners and surface texture. For the operation of such a device, it is necessary to generate in real time an individually specified drive waveform for each contactor of the stimulator array. To reduce the complexity of the problem, a system has been developed at Exeter in which each drive
signal is specified as a mixture of a small number of sinewaves.

The aim of this study is to investigate the discrimination of the virtual textures which can be produced in this way, with the aim of developing a library of textures for use in virtual reality applications. Textures produced by mixtures of sinewaves are differentiated in terms of the mean amplitude and the spatial distribution at each sinewave frequency. Experimental questions include
the number of categories (i.e., requency/amplitude/spatial combinations) that can be distinguished and the possible correspondence between virtual and real textures.
Original languageEnglish
Number of pages2
Publication statusPublished - 2006
Event3rd International Conference on Enactive Interfaces - Montpellier, France
Duration: 2006 Nov 202006 Nov 21


Conference3rd International Conference on Enactive Interfaces

Bibliographical note


Subject classification (UKÄ)

  • Human Computer Interaction


  • Haptiska gränssnitt-Virtual Reality


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