DTU BCI speller: An SSVEP-based spelling system with dictionary support

Adnan Vilic, Troels W. Kjaer, Carsten E. Thomsen, S. Puthusserypady, Helge B.D. Sorensen

    Publikation: Bidrag til bog/antologi/rapportKonferencebidragForskningpeer review

    Abstrakt

    In this paper, a new brain computer interface (BCI) speller, named DTU BCI speller, is introduced. It is based on the steady-state visual evoked potential (SSVEP) and features dictionary support. The system focuses on simplicity and user friendliness by using a single electrode for the signal acquisition and displays stimuli on a liquid crystal display (LCD). Nine healthy subjects participated in writing full sentences after a five minutes introduction to the system, and obtained an information transfer rate (ITR) of 21.94 ± 15.63 bits/min. The average amount of characters written per minute (CPM) is 4.90 ± 3.84 with a best case of 8.74 CPM. All subjects reported systematically on different user friendliness measures, and the overall results indicated the potentials of the DTU BCI Speller system. For subjects with high classification accuracies, the introduced dictionary approach greatly reduced the time it took to write full sentences.

    OriginalsprogEngelsk
    Titel2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
    Sider2212-2215
    Antal sider4
    DOI
    StatusUdgivet - 31 okt. 2013
    Begivenhed2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013 - Osaka, Japan
    Varighed: 3 jul. 20137 jul. 2013

    Publikationsserier

    NavnProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
    ISSN (Trykt)1557-170X

    Konference

    Konference2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
    Land/OmrådeJapan
    ByOsaka
    Periode3/07/137/07/13

    Fingeraftryk

    Udforsk hvilke forskningsemner 'DTU BCI speller: An SSVEP-based spelling system with dictionary support' indeholder.

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