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Title:POVEČANJE INFORMACIJSKE PRENOSNE HITROSTI NEVROLOŠKIH VMESNIKOV NA OSNOVI VIZUALNO IZZVANIH POTENCIALOV S POMOČJO BINOKULARNEGA VZBUJANJA
Authors:ID Kirbiš, Matej (Author)
ID Kramberger, Iztok (Mentor) More about this mentor... New window
Files:.pdf DR_Kirbis_Matej_2014.pdf (4,94 MB)
MD5: F2D7CD9BD2FC82816A24B5263A6AF665
 
Language:Slovenian
Work type:Dissertation
Typology:2.08 - Doctoral Dissertation
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Cilj doktorske disertacije je bila zasnova naprednega binokularnega nevrološkega vmesnika za komunikacijo med človekom in strojem na osnovi neinvazivne metode spremljanja nevroloških aktivnosti v zatilju glave, ki temelji na definiranju postopka izločanja značilk vizualno izzvanih potencialov ustaljenega stanja (SSVEP) in nadaljnje klasifikacije oziroma detekcije simbolov znotraj zajete nevrološke aktivnosti kot odziva na binokularno kodirano vizualno vzbujanje. V okviru doktorske naloge smo definirali celoten vmesnik možgani-računalnik, pri čemer smo v prvi fazi definirali in izdelali primerno napravo za binokularno vizualno vzbujanje. V nadaljevanju smo definirali binokularne kodirane simbole na frekvenčni in fazni osnovi ter nov nabor značilk, ki najbolje ločujejo binokularno kodirane simbolne razrede in z ustrezno nadaljnjo klasifikacijo uspešno prepoznavajo posamezne simbole. S praktičnim poizkusom smo dokazali, da je s takšnim pristopom možno povečati informacijsko prenosno hitrost glede na vmesnike, ki uporabljajo simbole samo na frekvenčni ali fazni osnovi in brez binokularnega pristopa. Definirali smo tudi nov uporabniški vmesnik za namene vizualne komunikacije med človekom in strojem v vseh treh dimenzijah prostora kot novo obliko modalnosti znotraj multimodalnih komunikacijskih vmesnikov.
Keywords:Vmesnik možgani-računalnik, EEG, vizualno vzbujanje, SSVEP, binokularno, faza
Place of publishing:Maribor
Publisher:[M. Kirbiš]
Year of publishing:2014
PID:20.500.12556/DKUM-46488 New window
UDC:004.5:621.391.3(043.3)
COBISS.SI-ID:18134294 New window
NUK URN:URN:SI:UM:DK:VT9FEXEM
Publication date in DKUM:06.10.2014
Views:2317
Downloads:205
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Secondary language

Language:English
Title:INCREASE THE INFORMATION TRANSFER RATE OF BRAIN COMPUTER INTERFACES BASED ON VISUAL EVOKED POTENTIALS WITH BINOCULAR STIMULI
Abstract:The aim of doctoral thesis was to design advanced binocular neurologic interface for communication between a human and a machine with the non-invasive method of monitoring neurologic activities in the nape of head. It is defined by the process of features excretion of the Steady state visual evoked potentials (SSVEP) and further classification or symbol detection within the neurologic activity as a response to binocular coded visual stimulation. In the thesis the whole brain computer interface was defined. In the first stage a suitable device for binocular visual stimulation was defined and formed. This was followed by defining of binocular coded symbols on the basis of frequency and phase and the new set of features, which distinguish binocular coded symbol classes and with the suitable further classification successfully recognize individual symbols. A practical experiment proved that this approach enables increase of information transfer rate regarding interfaces, which use symbols only on frequency or phase basis and without binocular approach. We defined also a new user interface for the purpose of visual communication between a human and a machine in three-dimensional space as a new form of modality within multimodal communication interfaces.
Keywords:Brain-computer interface, EEG, Visual stimulation, SSVEP, binocular, phase


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