| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for analyzing three-dimensional deformation, capable of analyzing deflection (deformation) of a golf club shaft in detail. <P>SOLUTION: A swing of a golf club that has markers 1 to 5 on a shaft is photographed by a first camera 12A and a second camera 12B, and three-dimensional coordinates of the markers 1 to 5 on the shaft are calculated from images photographed by the first camera 12A and the second camera 12B. The markers 1, 2 are selected from the markers 1 to 5 on the shaft to create a reference vector. Distance between an extension line of the reference vector and other ones of the markers 3 to 5 is calculated, and the deflection of the shaft is analyzed from the calculated distance. <P>COPYRIGHT: (C)2013,JPO&INPIT |
