Title :
Frequency content of whole body gait kinematic data
Author :
Angeloni, Cesare ; Riley, Patrick O. ; Krebs, David E.
Author_Institution :
Movement Anal. Lab., Orthopedic Inst. RIZZOLI, Bologna, Italy
fDate :
3/1/1994 12:00:00 AM
Abstract :
The authors analyzed the frequency content of camera image plane data for markers on each body segment during gait. For each segment, they determined the low-pass filter cutoff frequency that balanced the amount of signal distortion and the amount of random noise passed. The frequency content of the data as measured by the cutoff frequency differed for different body segments, being higher for the lower limb segments and lower for the head. This result supports the hypothesis that the frequency content of the kinematics of segments decreases caudal to rostral
Keywords :
biomechanics; biomedical measurement; kinematics; medical image processing; body segments; camera image plane data; caudal; clinical applications; frequency content; head; low-pass filter cutoff frequency; lower limb segments; random noise; rostral; signal distortion; whole body gait kinematic data; Cameras; Cutoff frequency; Data analysis; Distortion measurement; Frequency measurement; Head; Image analysis; Image segmentation; Kinematics; Low pass filters;
Journal_Title :
Rehabilitation Engineering, IEEE Transactions on
