Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs)
Speller UI systems tend to be less accurate because of individual variation and the noise of EEG signals. Therefore, we propose a new method to combine the EEG signals and gaze-tracking. This research is novel in the following four aspects. First, two wearable devices are combined to simultaneously...
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doaj-f0bddd4038fa439ebce2324db3aa77702020-11-24T20:43:55ZengMDPI AGSensors1424-82202013-03-011333454347210.3390/s130303454Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs)Mincheol WhangKang Ryoung ParkJae Won BangJong-Suk ChoiSpeller UI systems tend to be less accurate because of individual variation and the noise of EEG signals. Therefore, we propose a new method to combine the EEG signals and gaze-tracking. This research is novel in the following four aspects. First, two wearable devices are combined to simultaneously measure both the EEG signal and the gaze position. Second, the speller UI system usually has a 6 × 6 matrix of alphanumeric characters, which has disadvantage in that the number of characters is limited to 36. Thus, a 12 × 12 matrix that includes 144 characters is used. Third, in order to reduce the highlighting time of each of the 12 × 12 rows and columns, only the three rows and three columns (which are determined on the basis of the 3 × 3 area centered on the user’s gaze position) are highlighted. Fourth, by analyzing the P300 EEG signal that is obtained only when each of the 3 × 3 rows and columns is highlighted, the accuracy of selecting the correct character is enhanced. The experimental results showed that the accuracy of proposed method was higher than the other methods.http://www.mdpi.com/1424-8220/13/3/3454EEG signalgaze-trackingtwo wearable devicesspeller UI system |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mincheol Whang Kang Ryoung Park Jae Won Bang Jong-Suk Choi |
spellingShingle |
Mincheol Whang Kang Ryoung Park Jae Won Bang Jong-Suk Choi Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs) Sensors EEG signal gaze-tracking two wearable devices speller UI system |
author_facet |
Mincheol Whang Kang Ryoung Park Jae Won Bang Jong-Suk Choi |
author_sort |
Mincheol Whang |
title |
Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs) |
title_short |
Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs) |
title_full |
Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs) |
title_fullStr |
Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs) |
title_full_unstemmed |
Enhanced Perception of User Intention by Combining EEG and Gaze-Tracking for Brain-Computer Interfaces (BCIs) |
title_sort |
enhanced perception of user intention by combining eeg and gaze-tracking for brain-computer interfaces (bcis) |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2013-03-01 |
description |
Speller UI systems tend to be less accurate because of individual variation and the noise of EEG signals. Therefore, we propose a new method to combine the EEG signals and gaze-tracking. This research is novel in the following four aspects. First, two wearable devices are combined to simultaneously measure both the EEG signal and the gaze position. Second, the speller UI system usually has a 6 × 6 matrix of alphanumeric characters, which has disadvantage in that the number of characters is limited to 36. Thus, a 12 × 12 matrix that includes 144 characters is used. Third, in order to reduce the highlighting time of each of the 12 × 12 rows and columns, only the three rows and three columns (which are determined on the basis of the 3 × 3 area centered on the user’s gaze position) are highlighted. Fourth, by analyzing the P300 EEG signal that is obtained only when each of the 3 × 3 rows and columns is highlighted, the accuracy of selecting the correct character is enhanced. The experimental results showed that the accuracy of proposed method was higher than the other methods. |
topic |
EEG signal gaze-tracking two wearable devices speller UI system |
url |
http://www.mdpi.com/1424-8220/13/3/3454 |
work_keys_str_mv |
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