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

A virtual golf simulation apparatus comprising:

• a sensing device comprising a camera unit for acquiring a plurality of frame images of a ball hit by a user who swings at the ball and a sensing processing unit comprising a ball trajectory listing means for extracting ball candidates from the respective frames with respect to the acquired images and for creating a ball trajectory list to connect the respective ball candidates with respect to the successive frames and a ball trajectory determination means for performing second-order polynomial regression analysis with respect to the created ball trajectory list to create ball trajectory candidates and for extracting the trajectory of a ball from the ball trajectory candidates according to a predetermined condition;
• and
• an image realization unit for realizing a simulation image of a trajectory of the ball based on the information extracted by the sensing processing unit.