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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ÁÖ¼ººÐ ºÐ¼® ±â¹ÝÀÇ ³ë¾àÀÚ ÀÀ±Þ ¸ð´ÏÅ͸µ
¿µ¹®Á¦¸ñ(English Title) Principal Component analysis based Ambulatory monitoring of elderly
ÀúÀÚ(Author) ¾È³ªÇª¸£³ª »þ¸¶   ÀÌÈÆÀç   Á¤¿Ï¿µ   Annapurna Sharma   Hoon Jae Lee   Wan-Young Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 12 NO. 11 PP. 2105 ~ 2110 (2008. 11)
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(Korean Abstract)
ÀϹÝÀÎÀÇ °Ç°­»óŸ¦ ¸ð´ÏÅÍÇÏ´Â °£Æí Âø¿ë ÀÓº£µðµå ÀåÄ¡°¡ Ȩ ÇïtmÄɾîÀÇ ¿ëÀÌÇÑ ÇعýÀ¸·Î ¼Ò°³µÇ¾îÁö°í ÀÖ´Ù. º» ³í¹®¿¡¼­´Â ¸ÅÀÏ ÀÏ»ó È°µ¿À» °Ë»çÇÏ°í È°µ¿¼ºÀ» ºÐ·ùÇÏ´Â ¹æ¹ýÀ» º¸¿©ÁÖ°í ÀÖ´Ù. ³ë¾àÀÚ³ª Àå¾ÖÀο¡ ´ëÇÑ ÀÏ»ó ¸ð´ÏÅ͸µÀº ÀϹÝÀûÀÎ °Ç°­»óÅ »Ó ¸¸¾Æ´Ï¶ó ³Ñ¾îÁö°Å³ª µµ¿òÀÌ ÇÊ¿äÇÑ »óȲ µî ºñ»ó½Ã¿¡ °æº¸¸¦ ¾Ë·ÁÁÖ°Ô µÈ´Ù. ÀÌ °°Àº À§±â »óȲ¿¡¼­ Àû½ÃÀÇ µµ¿òÀº »ý¸í ¼Õ½ÇÀ» ÁÙ¿©ÁÙ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â 3Ãà °¡¼Óµµ°è¸¦ žÀçÇÑ ÈäºÎÂø¿ë¼¾¼­·ÎºÎÅÍ ¼ö½ÅµÇ´Â µ¥ÀÌÅ͸¦ ºÐ¼®ÇÏ°í ¾î¶² Ư¡ °ªµéÀÌ ÀÎüȰµ¿ºÐ·ù¿¡¼­ Áß¿äÇÏ°Ô µÇ´Â°¡¸¦ ¾Ë·ÁÁÙ ¼ö ÀÖÀ½À» º¸¿©ÁÖ¾ú´Ù. ÁÖ¼ººÐ ºÐ¼®¹ýÀº Ư¡ ¼¼Æ®¸¦ ¼öÁ¤Çϰųª µ¿ÀÏ Á¤º¸¿¡ ´ëÇÑ Å©±â¸¦ ÁÙÀ̴µ¥ À¯¿ëÇÏ´Ù. ¸¶Áö¸·À¸·Î, ½Å°æ¸Á ºÐ·ù±â¹ýÀÌ Á¤È®µµ ºÐ·ù¸¦ ºÐ¼®Çϱâ À§ÇØ Àû¿ëµÇ¾ú´Ù. ³Ñ¾îÁü¿¡ ´ëÇؼ­´Â 86%ÀÇ ÃøÁ¤ Á¤È®µµ¸¦ ¾òÀ» ¼ö ÀÖ¾ú°í, ÀÏÀÏ »ýÈ° È°µ¿¿¡ ´ëÇÑ Àüü È°µ¿¼º ºÐ·ù Á¤È®µµ´Â 94%¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù.
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(English Abstract)
Embedding the compact wearable units to monitor the health status of a person¡¡has been analysed as a convenient solution for the home health care. This paper presents a method to detect fall from the other activities of daily living and also to classify those activities. This kind of ambulatory monitoring of the elderly and people with limited mobility can not only provide their general health status but also alarms whenever an emergency such as fall or gait has been occurred and a help is needed. A timely assistance in such a situation can reduce the loss of life. This work shows a detailed analysis of the data received from a chest worn sensor unit embedding a 3-axis accelerometer and depicts which features are important for the classification of human activities, How to arrange and reduce the features to a new feature set so that it can be classified using a simple classifier and also improving the classification resolution. Principal component analysis (PCA) has been used for modifying the feature set and afterwards for reducing the size of the same. Finally a Neural network classifier has been used to analyse the classification accuracies. The accuracy for detection of fall events was found to be 86%. The overall accuracy for the classification of Activities of daily living (ADL) and fall was around 94%.
Å°¿öµå(Keyword) 3-axis Accelerometer   Human Activity classification   Principal component analysis   Neural network  
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