shown in fig1 is equipment used in the invention comprising video cassette recorders 1a and 1b accommodating video tapes for comparison . they may be sony &# 39 ; s evo - 9650 for hi - 8 or alternatively any other comparable vcr . recorders 1a and 1b have respective controllers 2a and 2b for searching for pictures and allowing a display of still pictures . the controllers are necessary for facilitating operations in the invention . the equipment further includes a personal computer 3 for providing controls in the invention . it may include nec &# 39 ; s pc - 9801 f and alternatively any other comparable computer . this computer has two video signal processing boards and a control board added . a monitor display 4 displays a picture processed by the computer 3 . a video cassette recorder 5 may record an edited picture monitored at monitor 4 . the recorder is of any type which is capable of recording a broadcast tv program . a video printer 6 may be of any commercial available type to produce a hard copy of necessary picture on the monitor . a touchpen board 7 with a touchpen 8 thereon may be included as an alternative to the keyboard . fig2 shows an embodiment of the touchpen board 7 shown in fig1 . the board includes sections 9 for selection of shapes to be inputted in the display , such as a circle , spiral , grid , line , line erase , blank and the like ; 10a and 10b for selection and display of prestored messages ; 11 for operation of video cassette recorders and 1b , permitting selection of motion speed of moving pictures ; 12 for operation of video cassette recorder 5 for edited video picture ; 13 for selection of thickness of lines to be inputted to the displays screen ; and 14 for selection of the color of the lines to be inputted thereto . fig3 a and 3b relate to an embodiment of the method according to the invention as applied to baseball and dancing performances , respectively . in fig3 a , the right side picture shows a trainer and at the left side , a trainee , for the purpose of telling the trainee about the correct form for batting a ball thrown by a pitcher . the form was shown in which the batter was about to strike the ball . it was evident that the left batter had his elbow stretched in this particular instance . the trainee was subjected to the teaching or counseling session using the apparatus of this invention and could understand the defect of his form and have his own actual form rectified . the method of the invention thus yielded efficient training . in fig3 b , the juxtaposed pictures produced by the method of the invention applied to japanese dancing performances clearly showed the trainer in the right picture was different from the trainee in the left one in the raising posture of the right arms . when the trainee was subjected to the teaching session by the method of the invention , she could easily understand the defect in her posture in contrast with her teacher &# 39 ; s posture and have her own posture rectified , the method of the intention good efficiency of training . fig4 relates to an embodiment of the method according to the invention as applied to baseball training , showing a trainer and trainee in the right and left picture , respectively . this comparatively depicted a position wherein a pitcher has his shoulder opposite to that of the side where the ball was held by his hand when the ball was in the rearmost position during the pitching motion . it was evident that the trainee &# 39 ; s left shoulder was stiff . when the trainee was subjected to the teaching session by the method of the invention , he could easily understand this defect and could rectify the stiffness and position of the shoulder as shown . the method of the invention thus achieved the desired efficiency in training . fig5 also relates to an embodiment of the method according to the invention as applied to baseball training , showing a trainer and trainee in the right and left picture , respectively . the method of invention could clearly monitor the fact that the pitcher was keeping his glove from the body when the ball was thrown away from his hand , the position of the pitcher &# 39 ; s glove influences the radius the shoulder makes during pitching stroke and the radius of the shoulder tends to be greater when the pitcher &# 39 ; s glove is spaced from his body . when the trainee was subjected to the teaching session by the method of the invention , he could easily understand the defect and could keep his glove spaced from the body . accordingly , the method of the invention achieved the desired efficiency of training . fig6 also relates to an embodiment of the method according to the invention as applied to baseball training , showing a trainer and trainee in the right and left picture , respectively . according to the invention , the trainer &# 39 ; s picture was still with the trainee &# 39 ; s being displayed in a motion picture , thus facilitating the trainee understanding his incorrect form in various phases of his action . when the trainee was subjected to the teaching session by the method of the invention , he could easily understand the defect and could rectify his form . fig7 a , 7b and 7c also relate to an embodiment of the method according to the invention as applied to baseball training , showing the same trainee both in the right and left pictures . according to the invention , the right picture showed a motion picture of the batting stroke action from the point that the batter struck the ball up to the finished phase of batting , with the form at the striking phase being in a still picture . when the trainee was thus subjected to the teaching session by method of the invention , he could easily understand the defect by seeing relationship between the form in the still picture and the subsequent stroke . fig8 also relates to an embodiment of the method according to the invention as applied to baseball training , showing the same trainee both in the right and left pictures . a trainee &# 39 ; s action was pictured before the trainee was trained . after he was trained , his improved action was pictured . pre - training and post - training actions were displayed in a juxtaposed pair of pictures to show the degree of improvement to the trainee . specifically , the trainee has the left elbow insufficiently stretched before the training , which was shown in the right picture . after the trainee has this defect pointed out by the trainer and has rectified it , a picture was taken and shown in the left picture in juxtaposition . when the trainee was thus subjected to the teaching session by the method of the invention , he could easily understand the deviation from the correct form . fig9 a , 9b and 9c relate to an embodiment of the method according to the invention as applied to golf training . it is believed that the head should not be displaced during the swing stroke . practically , it would often be difficult to obtain an understanding of how critical this principle is by seeing the swinging stroke on the screen . this difficulty was overcome by use of an overlapping grid on the screen . the forms at the time of address , takeback and ball strike shown in fig9 a , 9b and 9c , respectively , were presented to the trainee to enable an understanding of the correct form , the method of the invention achieving good efficiency of training . as shown in fig9 d and 9e where the form of the same trainee is depicted in a plurality of different angles in a non - overlapping juxtaposed pairs of screens , a number of lines and circle , instead of the grid , may be inputted on the screens to indicate the inclination of the members and / or the range of movements thereof to the trainee . when the trainee was thus subjected to the teaching session by the method of the invention , he could easily understand the correct form . fig1 a , 10b , 10c and 10d also relate to an embodiment of the method according to the invention as applied to golf training . in order to determine whether the swing form is correct or not , it is convenient to draw a line along the golfer &# 39 ; s opposite shoulders , a pair of lines linking he opposite ends of the shoulder line to the hands , and a line linking the club grip and head . when the triangle formed by the lines linking the shoulders and hands is kept the same , the shot can be made with the correct swing . as shown in fig1 a , 10b and 10c , the described lines were drawn on the screens , and then the pictures were erased . the resultant linear diagram may be displayed on the screen as shown in fig1 d , facilitating the trainee understanding the correct form . when the trainee was thus subjected to the teaching session by the method of the invention , he could easily understand the correct form . fig1 a and 11b also relate to an embodiment of the method according to the invention as applied to golf training . when a trainee is trained for an approach shot according to the invention , lines 15a , 16a and 17a designating the direction of the ball , movement of the club head , and the stance , respectively , were drawn on the screen as in fig1 a . after the picture has been caused to proceed to that of the backswing as shown in fig . 11b , the trainer show the trainee whether the take - back form was corrected in relation to the lines 15a , 16a , and 17a , to provide guidance . when the trainee was thus subjected to the teaching session by the method of the invention , he could easily understand the correct form . fig1 also relates to an embodiment of the method according to the invention as applied to golf training . as shown , any item indications may be selected from a set of predetermined characters and / or graphical representations and be displayed along with a still picture . the trainer may input his markings and / or remarks related to the form shown in the still picture , and may produce a hard copy of the display screen to be given to the trainee for facilitating understanding the correct from , the method of the invention achieving good efficiency of training . further , the invention provides a training method where the display screen is partitioned into two sections , one of which diagrammatically shows a strike zone , the baseball diamond , representations of the course of a ball entering the strike zone and the direction of the ball hit . the other section of the screen may show the form of the related batter . alternatively , one of the section screen depicts the position of a golf cup and turf grain , and the other shows a golfer putting at the pin in a still picture . with the method of this invention , the trainer could teach the trainee or trainees how to strategically proceed with the game with the varying situations . in the foregoing descriptions , the screen has been described as partitioned vertically . it is apparent that it may be partitioned horizontally or that partitioned segments may be varied in size .
the invention relates to a method for teaching the basic motions for sports , performances or other behaviors . a preferred teaching method includes the steps of taking pictures of trainees playing sports and performing actions with a video camera , giving guidance to them on the spot while analyzing the video image screens , sometimes in comparison with the gestures made by a trainer playing sports , and allowing the trainee to understand the correct forms and timings of the gestures or movements of the body and body members .