209 Measurement of a Three-Dimensional Posture of Golf Club Head through One Set of Camera

Abstract

We developed the method to measure the three-dimensional posture of the golf club head based on one photo taken by one set of a camera, and found the following in terms of the measurement accuracy. (1)The measurement error can be decreased by putting markers on the wider surface of a head. (2)In the case where the posture of a head significantly deviates from the standard posture, the measurement accuracy deteriorates compared with the case of a small deviation. (3)The measurement error can be reduced by identifying the coordinates of the center of markers instead of visually selecting a pixel as the center of markers.