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ÇѱÛÁ¦¸ñ(Korean Title) |
´ÙÁß»ýü½ÅÈ£ ±â¹ÝÀÇ ¸ÅÆ®¸¯½º ±×·ìÀ» ÀÌ¿ëÇÑ P300 ½ºÆç·¯ |
¿µ¹®Á¦¸ñ(English Title) |
P300 Speller Using Matrix Group Based on Multi-Bio Signals |
ÀúÀÚ(Author) |
À̺´ÈÆ
À¯Àçȯ
±è´öȯ
Byounghoon Lee
Jaehwan Yu
Deokhwan Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 39 NO. 10 PP. 0812 ~ 0817 (2012. 10) |
Çѱ۳»¿ë (Korean Abstract) |
BCI(brain computer interface)´Â µÎ³úÀÇ È°¼ºÈ·Î ¹ß»ýµÇ´Â ³ú ½ÅÈ£¸¦ ÀÌ¿ëÇÏ¿© ÄÄÇ»ÅÍ ¶Ç´Â ¿ÜºÎ ÀåÄ¡¸¦ Á¦¾îÇϱâ À§ÇÑ Åë½Å ¼ö´ÜÀ» Á¦°øÇÏ´Â ½Ã½ºÅÛÀ» ¸»ÇÑ´Ù. P300 ±â¹ÝÀÇ BCI ¿¬±¸¿¡¼ ¸¹ÀÌ È°¿ëµÇ´Â ´Ü¾îÀԷ±â(word speller)ÀÇ ¸ÅÆ®¸¯½º ÀÎÅÍÆäÀ̽º´Â ÀÔ·Â ¸í·ÉÀÇ ¼ö°¡ ¸¹¾ÆÁö¸é ¼öÇà½Ã°£ÀÌ ±æ¾îÁö´Â ´ÜÁ¡ÀÌ ÀÖ´Ù. º» ³í¹®¿¡¼´Â Ÿ°Ù ¹®ÀÚ¿¡ ´ëÇÑ ½Ã°¢ Àڱعæ¹ýÀ» ±âÁ¸ ´ÜÀÏ ¸ÅÆ®¸¯½º ±¸¼º°ú ´Þ¸® ´Ù¼öÀÇ ¸ÅÆ®¸¯½º ±×·ì¿¡¼ µ¿½Ã ¹ß»ýÇϵµ·Ï ÀÎÅÍÆäÀ̽º¸¦ ±¸¼ºÇÑ´Ù. P300ÀÇ ³ú ½ÅÈ£ ÃøÁ¤À¸·Î ³úÀüµµ(EEG)¸¦ ÀÌ¿ëÇÏ°í ¾È±¸ À§Ä¡ ÃøÁ¤À¸·Î ¾ÈÀüµµ(EOG) ½ÅÈ£¸¦ ÀÌ¿ëÇÏ´Â µî ´ÙÁß »ýü½ÅÈ£¸¦ ÀÌ¿ëÇÏ¿© Ÿ°Ù ¹®ÀÚ¿Í ¸ÅÆ®¸¯½º¸¦ ÆǺ°ÇÔÀ¸·Î½á ½ÇÇà¼Óµµ ¹× Á¤È®µµÀÇ ¼º´ÉÀ» ³ô¿´´Ù. ½ÇÇè¿¡¼ ÀÚ±Ø ¹Ýº¹À» 6ȸ ÇßÀ» °æ¿ì Á¦¾ÈÇÑ ´ÙÁß ¸ÅÆ®¸¯½º ±¸¼º ¹æ¹ýÀÌ ±âÁ¸ÀÇ ¸ÅÆ®¸¯½º ±¸¼º ¹æ¹ý¿¡ ºñÇØ Á¤È®µµ´Â 17% Çâ»óµÇ¾ú°í bit rate´Â 2¢¦5¹è Áõ°¡Çß´Ù.
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¿µ¹®³»¿ë (English Abstract) |
BCI(Brain-computer interface) is a system of providing human subject the communication to control the computer or external device by using the signal from the brain activity. Word speller is commonly used to research P300 based BCI and common matrix of word speller has the problem increasing the execution time as the number of command becomes large. In this paper, we propose the matrix group interface generating the visual stimulus at matrices concurrently. As electroencephalography(EEG) measures the brain signal of P300 and electroocculography(EOG) measures the eye position, these multi bio-signals are used to detect the target letters and the specific matrix. Experimental results show that the proposed method improves the accuracy up to 17% and increase the bit rate 2¢¦5 times compared to the previous matrix interface method when the stimulus repeats six times.
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Å°¿öµå(Keyword) |
³ú-ÄÄÇ»ÅÍ ÀÎÅÍÆäÀ̽º
³úÀüµµ
¾ÈÀüµµ
Brain computer interface
EEG
P300
EOG
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ÆÄÀÏ÷ºÎ |
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