The human body vibration measurement technique is used in the rehabilitation and occupational biomechanics fields of researches. We used an image-processing technique to measure the amplitude of vibration versus time. A regular camcorder with a lens was used to capture the images of a human, standing on a vibrating table with a defined marker placed in the subjects hand. The images were then transferred to the computer via a video grabber card and capturing software (DVD Capture 4.0). We developed an image processing software to analyze the images in order to obtain the frequency responses and the mechanical properties of various body segments. Image processing is an economic and easy method to measure the vibration of the human body and is a promising technique in the near future with the development of the digital video camera and its supporting software.
R. Narimani , M. Hoviattalab , A. Abadpour , A. Yadollahi
