JP2012040071A - Baseball training system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photographing/displaying device which makes it possible to compare images viewed from visual points of right-handed and left-handed batters for the same pitching since a conventional baseball analysis image allows a pitching form or a ball trajectory to be checked, however has a problem that the image is different dependingly on a visual point of an actual batter.SOLUTION: The baseball training system takes images of pitching of a pitcher from right-handed and left-handed batters' visual points with a plurality of cameras, synchronously displays the images in the same screen and makes it possible to analyze the difference in viewing of a pitching form or a ball trajectory, so that more practical training is achieved.

Description

  The present invention relates to a baseball training system using a video camera.

  Pitcher pitch analysis using a conventional video camera is based on a single shot video from the side of the pitcher, behind or behind the catcher, and batter bat swing analysis is also based on a single shot video of the rear, side, back, etc. Met.

Japanese Patent Laid-Open No. 10-111940 Japanese Patent Laid-Open No. 2003-018589

  However, although the conventional single shot video can check the pitcher's basic throwing motion and the ball trajectory, there is a problem that it is different from the video seen from the viewpoint of the actual batter.

  An object of the present invention is to solve the above-described problems and to provide a photographing / display device capable of comparing videos viewed from the left and right batter's viewpoints for the same pitch.

  In order to solve the above problem, the baseball training system of the present invention shoots pitcher pitches from the left and right batter viewpoints with multiple cameras, displays them synchronously on the same screen, and the difference in the appearance of the pitch form and ball trajectory It can be analyzed.

  In addition, according to the present invention, even in the same pitcher, it is possible to display and analyze the difference between the throwing form and the ball trajectory due to the difference in the ball type from the batter viewpoint, and the bat swing difference analysis by the synchronous display of the multi-view batter video Is also possible.

  According to the present invention, it is possible to effectively analyze the difference between the throwing form and ball trajectory for the right batter and the left batter, and to perform effective practice to improve more practical pitching and batting techniques. There is an effect that can be.

It is a block diagram of the conventional baseball analysis method. It is a block diagram of the pitcher analysis method by this invention. It is a display screen figure of the pitcher analysis method by this invention. It is a figure which shows the batter imaging | photography method by this invention. It is a block diagram of the batter analysis method by this invention. It is a display screen figure of the batter analysis method by this invention.

  A conventional baseball analysis method will be described below with reference to FIG.

  Under the control of the controller 115, a subject image of a pitcher or batter captured by the camera 101 is recorded in the recording device 111 and displayed on the display device 112. The analyst refers to the display image on the display device 112 and gives advice to the subject by comparison with the body feature point data and the reference image data.

  Next, an imaging method for pitching analysis according to the present invention will be described with reference to FIG.

  The pitcher's pitched video, which is continuously shot synchronously by the left camera 201 installed at the head position of the right batter 202 and the right camera 203 installed at the head position of the left batter 204, is controlled by the controller 215. Each video file is recorded in the recording device 211 as an individual video file and displayed on one or more display devices 212 and 213. For example, the display device 212 may be used for viewing by a catcher-side instructor, and the display device 213 may be used separately for viewing a pitcher.

  As a method of dividing the continuously shot pitch video into individual files for each pitch, for example, as disclosed in Japanese Patent Laid-Open No. 2006-238393, image recognition of a pitcher thrown ball, catching sound, etc. Detects voice and automatically executes.

  Next, a display method for pitching analysis according to the present invention will be described with reference to FIG.

  FIG. 3 is an example in which the display screen 214 of the display device 212 in FIG. 2 is divided into left and right, and the left camera image 201a captured by the left camera 201 is displayed on the left half and the right camera is displayed on the right half. The photographed right camera image 203a is synchronously displayed. The analyst compares the parallax between the images displayed on the display screen 214 with slow playback or frame-by-frame playback, and gives advice to the subject.

  In this analysis method, it is also possible to display and analyze images of different sphere types (ball speed / course) by the same pitcher and images of the same sphere type by different pitchers. The synchronization method in this case is different from the case where the same subject is simultaneously photographed, and can be achieved, for example, by editing both videos using the moment when the pitcher releases the ball as a synchronization point.

  Next, a batting analysis method according to the present invention will be described with reference to FIGS.

  FIG. 4 is a diagram showing a batter photographing method for performing batting analysis. The pitcher's throwing video shot from the batter's viewpoint is displayed on the display device 213. The front camera 205 (taken from the mound side) and the front camera 206 (opposite batting side) show the subject's batter swinging along with this playback video. From the top) 207 (photographed from the sky above the home plate) and the rear camera 208 (photographed from the catcher side). In this case, the ball type may be randomly changed to improve the training effect.

  FIG. 5 is a block diagram of the batter analysis method according to the present invention. In this example, the controller 215 is controlled so that each video of the four cameras 205, 206, 207, and 208, or a multi-viewpoint combining the video 201a or the video 203a. The image is displayed on the display screen 214 of the display device 212 as an image.

  FIG. 6 is an example in which the display screen 214 of the display device 212 in FIG. 5 is divided into four parts. The image 207a of the top camera 207 is displayed in the upper left, the image 206a of the front camera 206 is displayed in the lower left, and the front camera 205 is displayed in the lower right. The video 205a is displayed, and the video 201a is displayed on the upper right. The analyst refers to the quadrant video on the display screen 214 while performing slow playback or frame-by-frame playback and gives advice to the subject. In addition, by selecting a video to be displayed in a synchronized manner, a swing difference due to a pitch type or a standing position in a batter box can be easily identified.

  In each of the above analysis methods, the analysis is further facilitated by controlling the controller 215 to display the grid lines and strike zones on the display screen 214 in combination, or simultaneously displaying incidental information such as the ball speed measured with a speed gun. Needless to say.

101 Camera 111 Recording Device 112 Display Device 115 Controller 201 Left Camera 201a Left Camera Video Sphere Type a
202 Right batter 203 Right camera 203a Right camera video ball type a
204 Left batter 205 Front camera 205a Front camera video ball type a
206 Front camera 206a Front side camera image ball type a
207 Top camera 207a Top camera image sphere type a
208 Rear camera 208a Rear camera image ball type a
211 recording device 212 display device 213 display device 214 display screen 215 controller

Claims (5)

In baseball training,
Multiple cameras that continuously shoot pitcher pitches from the batter's perspective,
A recording device that records video shot by the camera as a plurality of video files for each pitch;
A display device for synchronously displaying a plurality of videos recorded in the recording device within the same screen;
The baseball training system characterized by including the controller which controls these.   The baseball training system according to claim 1, wherein the synchronized video is a photograph taken simultaneously from the batter viewpoints of the left and right batter boxes, and the throwing form and the parallax of the ball trajectory due to a difference in viewpoint can be analyzed.   The baseball training system according to claim 1, wherein the synchronized video is an image of pitches of different ball types of the same pitcher, and a difference in pitch form and ball trajectory due to a difference in ball types can be analyzed.   The baseball training system according to claim 1, wherein the synchronized video is an image of a pitch of the same pitch type of different pitchers, and a difference in pitch form and ball trajectory due to a difference in pitchers can be analyzed.   Select and display one of the above shot images, and simultaneously capture the batter's bat swing according to the playback image as a multi-viewpoint image with multiple cameras, and display them synchronously to analyze the difference in the bat swing due to differences in the ball type and pitcher. The baseball training system according to claim 1, wherein the baseball training system can be used.