A sensing system is provided for measuring various joints of a human body
for applications for performance animation, biomechanical studies and
general motion capture. One sensing device of the system is a
linkage-based sensing structure comprising rigid links interconnected by
revolute joints, where each joint angle is measured by a resistive bend
sensor or other convenient goniometer. Such a linkage-based sensing
structure is typically used for measuring joints of the body, such as the
shoulders, hips, neck, back and forearm, which have more than a single
rotary degree of freedom of movement. In one embodiment of the
linkage-based sensing structure, a single long resistive bend sensor
measures the angle of more than one revolute joint. A second sensing
device of the sensing system comprises a flat, flexible resistive bend
sensor guided by a channel on an elastic garment.