Floor-type golf ball detection method, system and storage medium

A golf ball floor type detection method, which is applied to a golf system with a camera configured at a side for detecting a golf ball provided with a mark thereon, comprising:

• correcting distortion of the camera:
• correcting a distorted image coordinate system of the camera by performing a polar coordinate transformation;
• calibrating the camera:
• converting the corrected image coordinate system into a world coordinate system;
• triggering of hitting a ball:
• monitoring a pixel variation value of a serving position of a golf ball in a picture captured by the camera in real time, and determining triggering of hitting the ball when the pixel variation value of the position exceeds a threshold value;
• positioning the golf ball:
• processing the picture captured by the camera after triggering of hitting the ball with a dynamic segmentation based on a fuzzy entropy and positioning the processed picture to acquire coordinate data of the golf ball;
• calculating parameters:
• substituting the coordinate data of the golf ball obtained by the positioning into a world coordinate system to calculate movement parameters of the golf ball;
• and
• detecting a rotating speed of the golf ball:
• extracting the mark on the golf ball in the picture used for positioning by performing a gradient-based dynamic segmentation method and acquiring the rotating speed based on angular variation of the extracted mark in the picture.