| 摘要 |
Provided are an apparatus and method for sensing a moving ball, which extract a feature portion such as a trademark, a logo, etc. indicated on a ball from consecutive images of a moving ball, acquired by an image acquisition unit embodied by a predetermined camera device, and rapidly, and accurately calculate spin of the ball, specifically, even when only a portion of the feature portion indicated on the image remains due to rotation of the ball so as to calculate a spin axis and spin amount of rotation the moving ball based on the feature portion and thus spin of the ball is rapidly and accurately calculated, thereby achieving rapid and stable calculation of the ball in a relatively low performance system. The apparatus includes an image acquisition unit for acquiring consecutive images of a ball, an image processing unit for extracting a feature portion of the ball from the acquired images, and a spin calculation unit for performing any one of forward operation analysis and inverse operation analysis to calculate spin of the ball. |
