20.500.12556/RUL-95916 Razvoj vmesnika možgani računalnik na osnovi premikanja oči Development of an eyes-moving based brain-computer interface Diplomska naloga predstavlja proces razvoja vmesnika med možgani in računalnikom (angl. brain-computer interface - BCI), ki temelji na osnovi premikanja oči. BCI sistemi zajemajo in analizirajo možgansko aktivnost ter jo pretvorijo v ustrezne ukaze. Cilj diplomske naloge je bil razviti vmesnik, ki omogoča premikanje kazalca na zaslonu. Za merjenje možganske aktivnosti smo uporabili naglavni sistem Emotiv EPOC, ki je predstavnik cenovno zelo ugodnih sistemov, ki omogočajo zajemanje elektroencefalograma (EEG). V sklopu naloge smo izdelali tudi aplikacijo za zajemanje in vizualizacijo EEG signalov ter spektrov signalov v realnem času. Aplikacijo smo uporabili za oceno različnih tehnik zavednega vplivanja na EEG signale, od katerih se je za najbolj ustrezno izkazala tehnika s premikanjem oči levo in desno. Na osnovi te tehnike smo oblikovali protokol, ki s pomočjo začetne kalibracije uporabniku omogoča premikanje kazalca na zaslonu v horizontalni smeri. Delovanje vmesnika smo preizkusili s pomočjo testiranja, v katerem so testni subjekti izvajali premike kazalca, kakor je to zahteval testni program. Testnim subjektom je v 85,5% poizkusov uspelo izvesti zahtevan premik kazalca v roku dveh sekund. This diploma thesis represents a process of development of a Brain-Computer Interface (BCI) based on eyes movement. The BCI systems acquire and analyse the brain activity and convert it to suitable commands. The goal of this diploma thesis was to develop an interface that enables a user to move the cursor on the screen. For measuring the brain activities, we used the Emotiv EPOC headset, which is a representative of very affordable systems that enable acquisition of the electroencephalogram (EEG). In the scope of this thesis, we also developed an application for acquiring and visualizing the EEG signals and their spectra in real time. We used the application to assess a various of techniques of conscious influence on the EEG signals, of which the most suitable appeared to be the technique of moving the eyes to the left and right. On the basis of this technique, we defined a protocol, which using initial calibration, allows a user moving of the cursor on the screen in the horizontal direction. We tested the functionality of the interface using a test by which the test subjects performed movements of the cursor, as required by the testing program. In 85.5% of the attempts, the test subjects managed to perform the requested cursor movement within two seconds. Vmesnik možgani-računalnik Premikanje oči Elektroencefalogram Zajemanje in analiza v realnem času Zavestno vplivanje na aktivnost možganov Brain-computer interface Eyes-movement Electroencephalogram Realtime acquiring and analysing Conscious influence on brain activity true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-09-25 14:14:46 2017-09-25 14:14:49 2022-08-10 07:01:15 0000-00-00 00:00:00 2017 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 20167 Loboda_Luka_-_Razvoj_vmesnika_mozgani_racunalnik_na_osnovi_premikanja_oci.pdf Loboda_Luka_-_Razvoj_vmesnika_mozgani_racunalnik_na_osnovi_premikanja_oci.pdf 1 CE951A10C9A874AAA0DF170B7FFA74B3 fcae6c458021083a72919dc90bb281a5f7f5e7620d3689790c17ace4fdec9470 db70b64d-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/1139adef-fbe6-4cc8-909b-327af6b4a734 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=104563 Fakulteta za računalništvo in informatiko 0 0 0