| Title |
Development of a Vision System for the Measurement of the Pendulum Test |
| Authors |
김철승(Kim, Chul-Seung) ; 문기욱(Moon, Ki-Wook) ; 이수영(Lee, Soo-Young) ; 엄광문(Eom, Gwang-Moon) |
| Keywords |
진자운동검사법 ; 경직 ; 영상시스템 ; 자기센서 ; 역학적 특성 Pendulum test ; Spasiticity ; Vision system ; Magnetic sensor ; Mechanical property |
| Abstract |
The purpose of this work is to develop a measurement system of the pendulum test with minimal restriction of experimental environment and little influence of noise. In this work, we developed a vision system without any line between markers and a camera. The system performance is little influenced by the experimental environment, if light are sufficient to recognize markers. For the validation of the system, we compared knee joint angle trajectories measured by the developed system and by the magnetic sensor system during the nominal pendulum test and the maximum speed voluntary knee joint rotation. The joint angle trajectories of the developed system during both tests matched well with those of the magnetic system. Therefore, we suggest the vision system as an alternative to the previous systems with limited practicality for the pendulum test. |