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단일 카메라를 이용한 동역학 기반의 보행 동작 추적

Other Titles
 Tracking a Walking Motion Based on Dynamics Using a Monocular Camera 
 유태근 ; 최재림 ; 김덕원 
 전자공학회논문지 - SC, Vol.49/SC(1) : 20~28, 2012 
Journal Title
 전자공학회논문지 - SC 
Issue Date
Gait analysis is an examination which extracts objective information from observing human gait and assesses the function. The equipments used recently for gait analysis are expensive due to multiple cameras and force plates, and require the large space to set up the system. In this paper, we proposed a method to measure human gait motions in 3D from a monocular video. Our approach was based on particle filtering to track human motion without training data and previous information about a gait. We used dynamics to make physics-based motions with the consideration of contacts between feet and base. In a walking sequence, our approach showed the mean angular error of 12.4° over all joints, which was much smaller than the error of 34.6° with the conventional particle filter. These results showed that a monocular camera is able to replace the existing complicated system for measuring human gait quantitatively.
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1. 연구논문 > 1. College of Medicine > Dept. of Medical Engineering
Yonsei Authors
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