Patent ID: 9514379
Filing Date: 2016-12-06
CPC Classification: G06K,G09B

Claim Text:
1. A sensing device used in a virtual golf simulation apparatus, comprising: a camera unit comprising at least one or more cameras configured to acquire a plurality of frame images of a ball and a golf club head as source images during hitting the ball by the golf club head; and a sensing processing unit comprising, a ball image processor configured to extract at least one or more ball images from each of the source images to obtain three-dimensional coordinates of the ball moved by hitting, and a club image processor configured to extract at least one or more images of moving object of interest from each of the source images to calculate a moving trajectory of the golf club head, wherein the club image processor is configured to: wherein the sensing processing unit is configured to calculate information on physical properties including at least one of velocity, direction and altitude angle of the moving ball using the three-dimensional coordinates of the moving ball obtained by the ball image processor, and to estimate a spin of the moving ball from the moving trajectory of the golf club head calculated by the club image processor.