System and method for posture correcting

Abstract

This disclosure relates a system and method for posture correcting, which will provide intuitive correction information so that a user can correct a posture when exercising golf swing. The posture correcting system photographs successive sports swing postures of a user to form swing image data, forms a swing image for a specific posture of the user by using the swing image data, stores a reference swing image corresponding to the swing image, compares the swing image with the reference swing image to produce a correction image showing whether the swing image is in agreement with the reference swing image, and displays the correction image.

1 . A posture correcting system, comprising:
 a photographing unit for photographing successive sports swing postures of a user and forming swing image data;   a swing image forming unit for forming a swing image for a specific posture of the user by using the swing image data;   a storing unit for storing a reference swing image corresponding to the swing image;   a processor for comparing the swing image with the reference swing image and forming a correction image showing whether the swing image is in agreement with the reference swing image; and   an output unit for displaying the correction image.   
     
     
         2 . The posture correcting system according to  claim 1 , wherein the sport is golf. 
     
     
         3 . The posture correcting system according to  claim 2 , wherein the photographing unit is capable of extracting swing image data of a specific posture preset or that of requested by a user while photographing a moving picture of a golf swing posture of the user. 
     
     
         4 . The posture correcting system according to  claim 3 , wherein the specific posture includes a back swing posture, down swing posture, impact swing posture and a finish swing posture. 
     
     
         5 . The posture correcting system according to  claim 4 , wherein the photographing unit includes a plurality of cameras to form multi-view swing image data obtained by photographing the specific posture from various directions. 
     
     
         6 . The posture correcting system according to  claim 5 , wherein the multi-view swing image data includes front swing image data for forming a swing image observed from a front location of the user, side swing image data for forming a swing image observed from a side location of the user, vertical swing image data for forming a swing image observed from an upper or lower location of the user, and user-designated swing image data for forming a swing image observed from a location picked by the user. 
     
     
         7 . The posture correcting system according to  claim 6 , wherein the swing image forming unit forms swing images for a back swing posture, down swing posture, impact swing posture and a finish swing posture, among a series of golf swing postures of the user by using the swing image data. 
     
     
         8 . The posture correcting system according to  claim 7 , wherein the swing image forming unit forms multi-view swing images including a front swing image showing a swing image observed from a front location of the user, side swing image showing a swing image observed from a side location of the user, vertical swing image showing a swing image observed from an upper or lower location of the user, and a user-designated swing image showing a swing image perceived from a location designated by the user, by way of using the multi-view swing image data. 
     
     
         9 . The posture correcting system according to  claim 8 , wherein the storing unit stores a reference swing image set for a plurality of golf swing postures which require correction, in correspondence with the swing image and the multi-view swing image. 
     
     
         10 . The posture correcting system according to  claim 9 , wherein the reference swing image set includes reference swing images for specific postures including the back swing posture, down swing posture, impact swing posture and finish swing posture as well as multi-view reference swing images corresponding to the multi-view swing images. 
     
     
         11 . The posture correcting system according to  claim 10 , wherein the processor forms the correction image by comparing the reference swing image provided from the Storing unit with the swing image formed by the Swing image forming unit and marking a region where the reference swing image overlaps with the swing image and a region where the reference swing image does not overlap with the swing image with different colors. 
     
     
         12 . The posture correcting system according to  claim 10 , wherein the processor forms the correction image by performing a visibility test for determining a location relationship between the reference swing image and the swing image there by marking meshes included in the reference swing image with different colors according to the result of the visibility test. 
     
     
         13 . The posture correcting system according to  claim 12 , wherein the result of the visibility test is obtained according to a vector product of a normal vector representing a normal direction of the mesh, and a viewing vector representing the direction of a viewing point used in rendering for forming the swing image. 
     
     
         14 . A posture correcting method, comprising:
 photographing successive sports swing postures of a user and forming swing image data;   forming a swing image for a specific posture of the user by using the swing image data;   storing a reference swing image corresponding to the swing image;   comparing the swing image with the reference swing image and forming a correction image showing whether the swing image is in agreement with the reference swing image; and   displaying the correction image.   
     
     
         15 . The posture correcting method according to  claim 14 , wherein the sport is golf. 
     
     
         16 . The posture correcting method according to  claim 15 , wherein the photographing of successive sports swing postures is executed using a camera capable of extracting swing image data of a specific posture preset or requested by a user while a moving picture of a golf swing posture of the user is photographed. 
     
     
         17 . The posture correcting method according to  claim 16 , wherein the specific posture includes a back swing posture, down swing posture, impact swing posture and a finish swing posture. 
     
     
         18 . The posture correcting method according to  claim 17 , wherein the photographing of successive sports swing postures further includes forming multi-view swing image data obtained by photographing the specific posture in various directions. 
     
     
         19 . The posture correcting method according to  claim 18 , wherein the multi-view swing image data contains front swing image data for forming a swing image observed from a front location of the user, side swing image data for forming a swing image observed from a side location of the user, vertical swing image data for forming a swing image observed from an upper or lower location of the user, and user-designated swing image data for forming a swing image observed from a location designated by the user. 
     
     
         20 . The posture correcting method according to  claim 19 , wherein the formation of a swing image includes forming swing images for a back swing posture, down swing posture, impact swing posture and a finish swing posture, among a series of golf swing postures of the user by using the swing image data. 
     
     
         21 . The posture correcting method according to  claim 20 , wherein the formation of a swing image further includes forming multi-view swing images including a front swing image showing a swing image observed from a front location of the user, side swing image showing a swing image observed from a side location of the user, vertical swing image showing a swing image observed from an upper or lower location of the user, and a user-designated swing image showing a swing image observed from a location designated by the user, by using the multi-view swing image data. 
     
     
         22 . The posture correcting method according to  claim 21 , wherein the storing of a reference swing image includes storing a reference swing image set for a number of golf swing postures which require correction, in correspondence with the swing image and the multi-view swing image. 
     
     
         23 . The posture correcting method according to  claim 22 , wherein the reference swing image set contains reference swing images for specific postures including the back swing posture, down swing posture, impact swing posture and the finish swing posture and also the multi-view reference swing images corresponding to the multi-view swing images. 
     
     
         24 . The posture correcting method according to  claim 23 , wherein forming of a correction image includes forming the correction image by comparing the reference swing image provided from the storing unit with the swing image formed by the swing image forming unit and marking a region where the reference swing image overlaps with the swing image and a region where the reference swing image does not overlap with the swing image with different colors. 
     
     
         25 . The posture correcting method according to  claim 23 , wherein the formation of a correction image includes making the correction image by performing a visibility test for determining a location relationship between the reference swing image and the swing image, also marking meshes encompassed in the reference swing image with different colors according to the result of the visibility test. 
     
     
         26 . The posture correcting method according to  claim 25 , wherein the result of the visibility test is obtained according to a vector product of a normal vector representing a normal direction of the mesh and a viewing vector representing a direction of a viewing point used in rendering for forming the swing image.