Virtual golf simulation apparatus and sensing device and method used for the same

摘要

Disclosed are a virtual golf simulation apparatus in which an image of a ball hit by a user using virtual golf simulation, who swings a golf club to hit the ball, is acquired, and the ball is found from the acquired image to calculate the moving trajectory of the ball, thereby realizing a simulation image of the trajectory of the ball, and, particularly, in which the two-dimensional trajectory of ball candidates, determined as a ball, in an image acquired by the camera is analyzed to accurately and rapidly extract the ball, thereby accurately and rapidly calculating information on physical properties of the moving ball even using a camera having a low resolution and velocity, and a sensing device and method used for the same.

主权项

1. A sensing device used in a virtual golf simulation apparatus, comprising:
a camera unit configured to acquire a plurality of successive frame images of a physical ball hit by a user who swings at the physical ball; and a sensing processing unit configured to process the successive frame images acquired by the camera unit to calculate physical properties of movement for the physical ball and to provide a virtual ball trajectory, wherein the sensing processing unit is configured to,
extract ball candidates from the acquired successive frame images,connect the respective ball candidates with respect to the acquired successive frame images,convert three-dimensional coordinates of the connected ball candidates into two-dimensional coordinates, and provide two-dimensional trajectories thereof,analyze the two-dimensional trajectories of the connected ball candidates to extract a trajectory of the physical ball,convert two-dimensional coordinates of physical ball on the trajectory into three-dimensional coordinates, andcalculate the physical properties of the movement for the physical ball based on a three-dimensional trajectory from the converted three-dimensional coordinates of the physical ball.