Title :
Bio-feedback control analysis of postural stability using CCD video cameras and a force-plate sensor synchronized system
Author :
Tsuruoka, Masako ; Shibasaki, Ryosuke ; Murai, Shunji
Author_Institution :
Inst. of Ind. Sci., Tokyo Univ., Japan
Abstract :
The developed system is composed of two CCD video cameras and a force plate sensor, which are controlled simultaneously by a personal computer. By this system, time-series data of 3D coordinates of joints and each foot´s pressure enable to provide efficient bio-feedback control analysis of postural stability utilizing autoregressive modeling. After therapy, in the case of 80% of patients, the power spectrum of the body´s center of gravity fluctuations became inversely proportional to frequency, and impulse response recovered
Keywords :
CCD image sensors; autoregressive processes; biocontrol; biomechanics; feedback; force sensors; mechanical stability; medical image processing; microcomputer applications; patient rehabilitation; time series; 3D coordinates; CCD video cameras; autoregressive modeling; bio-feedback control analysis; center-of-gravity fluctuations; foot pressure; force-plate sensor synchronized system; impulse response; joints; personal computer; postural stability; time-series data; Biosensors; Charge coupled devices; Charge-coupled image sensors; Control systems; Foot; Force control; Force sensors; Microcomputers; Sensor systems; Stability analysis;
Conference_Titel :
Systems, Man, and Cybernetics, 1998. 1998 IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4778-1
DOI :
10.1109/ICSMC.1998.726495
