Czasopismo | ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA | Rocznik 2012 - zeszyt 5

Brain-computer interaction analysis based on EEG signal and gaze-tracking information

nr katalogowy: 67417

Recently many studies are carried out in the area of brain-computer interface (BCI) technology. The electroencephalographic signal (EEG) analysis is one of the most common ways of communication between human brain and the computer due to its non-invasive nature and relative user’s comfort. Still using only EEG data does not provide objective reference information about actions performed by the subject examined. Creating a fully functional and effective BCI to control the computer still remains a distant target. The main disadvantage of the most BCI systems is the lack of the feedback information that could be used as a reference. It is impossible to determine, which of the processes currently dominates brain activity. Even if the subject is asked to perform a task, there is no certainty the user paid attention during its realization. On the other hand, the eye-tracking system provides information about the gaze fixation point allowing for evaluating visual activity of the subject. Thus, we assumed that by combining EEG signal measured by a wireless BCI interface with the eye-tracking system registering the subject’s gaze activity we could expect to obtain an integrated brain-computer interface that measures the user’s brain signal in a more effective, and at the same time, a more objective way. At the same time EOG recording system was used to obtain reference data. EOG-based information transfers this knowledge to the EEG signal analysis. In the paper several approaches for signal pre-processing and parameterization were described and then their usability was checked by means of machine-learning algorithms. The main goal expected to be achieved within this study was to evaluate the possibility to develop a functional and user-friendly solution that utilizes abilities of presented systems. System Setup Gaze-Tracking System The Cyber-Eye, a gaze tracking system developed in the Multimedia Systems Department[...]

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e-Publikacja (format pdf) - nr 67417 "Brain-computer interactio..." licencja: Osobista Produkt cyfrowy	10.00 zł

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ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA - e-zeszyt (pdf) 2012-5 licencja: Osobista Produkt cyfrowy	35.00 zł

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2012-5

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