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

Adnan Vilic; Troels W. Kjaer; Carsten E. Thomsen; Sadasivan Puthusserypady; Helge Bjarup Dissing Sørensen

doi:10.1109/EMBC.2013.6609975

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

Adnan Vilic, Troels W. Kjaer, Carsten E. Thomsen, Sadasivan Puthusserypady, Helge Bjarup Dissing Sørensen

Copenhagen University Hospital Herlev and Gentofte

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

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.

Original language	English
Title of host publication	IEEE Engineering in medicine and biology society conference proceedings
Publisher	IEEE
Publication date	2013
Pages	2212-2215
ISBN (Print)	9781457702167
DOIs	https://doi.org/10.1109/EMBC.2013.6609975
Publication status	Published - 2013
Event	2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Oaska International Convention Center, Osaka, Japan Duration: 3 Jul 2013 → 7 Jul 2013 Conference number: 35 https://ieeexplore.ieee.org/xpl/conhome/6596169/proceeding

Conference

Conference	2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Number	35
Location	Oaska International Convention Center
Country/Territory	Japan
City	Osaka
Period	03/07/2013 → 07/07/2013
Internet address	https://ieeexplore.ieee.org/xpl/conhome/6596169/proceeding

Keywords

Engineered Materials, Dielectrics and Plasmas

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10.1109/EMBC.2013.6609975

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title = "DTU BCI speller: An SSVEP-based spelling system with dictionary support",

abstract = "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.",

keywords = "Engineered Materials, Dielectrics and Plasmas",

author = "Adnan Vilic and Kjaer, \{Troels W.\} and Thomsen, \{Carsten E.\} and Sadasivan Puthusserypady and S{\o}rensen, \{Helge Bjarup Dissing\}",

year = "2013",

doi = "10.1109/EMBC.2013.6609975",

language = "English",

isbn = "9781457702167",

pages = "2212--2215",

booktitle = "IEEE Engineering in medicine and biology society conference proceedings",

publisher = "IEEE",

address = "United States",

note = "2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013 ; Conference date: 03-07-2013 Through 07-07-2013",

url = "https://ieeexplore.ieee.org/xpl/conhome/6596169/proceeding",

}

Vilic, A, Kjaer, TW, Thomsen, CE, Puthusserypady, S & Sørensen, HBD 2013, DTU BCI speller: An SSVEP-based spelling system with dictionary support. in IEEE Engineering in medicine and biology society conference proceedings. IEEE, pp. 2212-2215, 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Osaka, Japan, 03/07/2013. https://doi.org/10.1109/EMBC.2013.6609975

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T1 - DTU BCI speller: An SSVEP-based spelling system with dictionary support

AU - Vilic, Adnan

AU - Kjaer, Troels W.

AU - Thomsen, Carsten E.

AU - Puthusserypady, Sadasivan

AU - Sørensen, Helge Bjarup Dissing

N1 - Conference code: 35

PY - 2013

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AB - 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.

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BT - IEEE Engineering in medicine and biology society conference proceedings

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Y2 - 3 July 2013 through 7 July 2013

ER -

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

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