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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document : 5 / 10 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) º¸Çà ¹æÇâ ¹× »óÅ ºÐ¼®À» À§ÇÑ º´·Ä °¡¿ì½º °úÁ¤
¿µ¹®Á¦¸ñ(English Title) Parallel Gaussian Processes for Gait and Phase Analysis
ÀúÀÚ(Author) ½ÅºÀ±â   Bong-Kee Sin  
¿ø¹®¼ö·Ïó(Citation) VOL 42 NO. 06 PP. 0748 ~ 0754 (2015. 06)
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(Korean Abstract)
º» ¿¬±¸¿¡¼­´Â ´ÙÁß »óÅ º¯¼öÀÇ Àμö HMMÀ» ÀϹÝÈ­ÇÏ¿© ¿¬¼Ó Àº´Ð º¯¼ö¿Í ÀÌ»ê Àº´Ð º¯¼ö°¡ °áÇÕµÈ ¼øÂ÷ »óÅ ÃßÁ¤ ¸ðÇüÀ» Á¦¾ÈÇÏ°í ÀÌ¿¡ ±â¹ÝÇÑ º¸Çà µ¿ÀÛ ¸ðÇüÀ» ¼³°èÇÑ´Ù. À¯ÇÑ »óÅÂÀÇ ÀÌ»ê º¯¼ö´Â ¸¶¸£ÄÚÇÁ ¿¬¼â ±¸Á¶·Î º¸ÇàÀÇ µ¿¿ªÇÐÀû Ư¼ºÀ» Ç¥ÇöÇÏ°í °¢ ÀÌ»ê »óÅ¿¡ ´ëÇØ ¿¬¼Ó º¯¼ö¸¦ µ¶¸³ º¯¼ö·Î ÇÑ °¡¿ì½º °úÁ¤À» Á¤ÀÇÇÑ´Ù. ¸¶¸£ÄÚÇÁ »óÅ õÀÌ´Â ¿©·¯ °¡¿ì½º °úÁ¤ »çÀÌÀÇ ½ºÀ§ÄªÀ» Á¦¾îÇÏ¸ç °¢ °¡¿ì½º °úÁ¤Àº µ¿ÀÏÇÑ ÀÚ¼¼ÀÇ È¸Àü ¶Ç´Â ´Ù¾çÇÑ ½Ã°¢À» Ç¥ÇöÇÑ´Ù. ¿Â¶óÀÎ ÇÊÅ͸µ Ãß·ÐÀ» À§ÇØ ÀÔÀÚ ÇÊÅÍ ¹æ½ÄÀÇ Ãß·Ð ¾Ë°í¸®µëµµ Á¦½ÃÇÑ´Ù. ÀÌ ¾Ë°í¸®µëÀº ÀÔ·Â º¤ÅÍ ¿­ÀÌ ÁÖ¾îÁ³À» ¶§ ÀÌµé º´·ÄÀû °¡¿ì½º °úÁ¤À» µ¿ÀûÀ¸·Î °¥¾ÆŸ´Â ½ºÀ§Äª ±ËÀûÀ» µðÄÚµù ÇØÁØ´Ù. ½ÇÇè °á°ú ºñ¼±ÇüÀû º¸ÇàÀÚ ºñµð¿À ¿µ»óÀ» º¸Çà ¹æÇâ°ú º¸Çà »óÅÂÀÇ ¿­·Î ºÐ¸®ÇÏ¸ç ¸Å¿ì Á÷°üÀûÀÎ Çؼ®À» ÇÒ ¼ö ÀÖÀ½À» º¸¿´´Ù.
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(English Abstract)
This paper proposes a sequential state estimation model consisting of continuous and discrete variables, as a way of generalizing all discrete-state factorial HMM, and gives a design of gait motion model based on the idea. The discrete state variable implements a Markov chain that models the gait dynamics, and for each state of the Markov chain, we created a Gaussian process over the space of the continuous variable. The Markov chain controls the switching among Gaussian processes, each of which models the rotation or various views of a gait state. Then a particle filter-based algorithm is presented to give an approximate filtering solution. Given an input vector sequence presented over time, this finds a trajectory that follows a Gaussian process and occasionally switches to another dynamically. Experimental results show that the proposed model can provide a very intuitive interpretation of video-based gait into a sequence of poses and a sequence of posture states.
Å°¿öµå(Keyword) º¸Çà µ¿ÀÛ ºÐ¼®   °¡¿ì½º °úÁ¤   ¸¶¸£ÄÚÇÁ ¿¬¼â   ÀÔÀÚ ÇÊÅÍ   von Mises ºÐÆ÷   human gait analysis   Gaussian process   Markov chain   particle filter   von Mises distribution  
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