| 摘要 |
The present invention provides a device and a method for sensing a moving ball and a method for processing a ball image for spin calculation of the moving ball, and the present invention measures a spin by obtaining and analyzing an image of a ball moving by being hit or the like, wherein: unspecified marks such as a logo of a ball manufacturer or a trademark of a ball which is already marked on the ball, scratches, and stains or the like, that is, characterizing parts are quickly and precisely extracted by using a simple method instead of displaying specific patterns only for spin measurement; and a spin axis and a spin amount for rotation of the ball are precisely calculated by using the extracted parts such that a spin of a moving ball can be measured. |
