Patent ID: 8894500
Filing Date: 2014-11-25
Classification: A63B,G06K,G06T,G09B

Abstract:
1. A diagnosing method of a golf swing comprising the steps of: a camera photographing a golf player swinging a golf club to hit a golf ball and the golf club to obtain image data; determining, by a processor, a check frame in which the golf player is in a predetermined posture from a plurality of frames obtained from the image data; determining, by the processor, a contour of the golf player from the check frame; deciding, by the processor, the swing from the contour of the golf player, and determining extreme values constituting the contour, the extreme values being maximum values or minimum values of a predetermined function; determining at least one reference point from the extreme values; determining a plurality of feature points from the extreme values, each of said plurality of feature points being a point on the contour and expressing a region of the photographed golf player, wherein each of the plurality of feature points is determined such that a distance between the point on the contour and a straight line that passes the reference point and another point on the contour with extreme values, which is not designated as the at least one reference point, is maximized or minimized; calculating judging indices from a difference between coordinates of two feature points; and diagnosing the swing using position information of the plurality of feature points, wherein quality of swing is diagnosed based on whether the judging indices are in a predetermined range or not.