Patent ID: 7097459

Claim:
A golf swing diagnosis system comprising: a photographing unit configured to photograph a swing moving image in a color image when a golfer swings; a capturing unit configured to capture said photographed color image into a computer; a recognizing unit configured to recognize at least two reference points which are specified in colors on said color image of said computer and are spaced at a given interval in a longitudinal direction of a golf club shaft gripped by said golfer, and to recognize one or more reference points which are specified in colors, move during said swing, and are selected from among a golfer's head, neck, right shoulder, left shoulder, right elbow, left elbow, left wrist, right wrist, right waist, left waist, right knee, left knee, right ankle, left ankle, right toe, and left toe; a converting unit configured to convert said swing moving image into a plurality of still images; a computing unit configured to compute a plurality of evaluation items to be checked including a swing posture and a shaft angle in a range from an addressing state till an impact state to express said evaluation items by numeric values, based on coordinate data of each of said reference points, disposed on a plurality of said still images, which are discriminated in said colors; and a diagnosing unit configured to diagnose said golfer's swing by comparing said data expressed by numeric values with judging data inputted to said computer in advance as ideal values, wherein said golfers swing is photographed by two cameras at a position forward from said golfer and at a position rearward from said golfer in a ball fly line to obtain a front image and a rear image along said ball fly line, whereby two-dimensional coordinate data is obtained or three-dimensional coordinate data is obtained by converting a photographed image on said computer.