Golf hitting data analyzer

Abstract

The present invention relates to the field of golf hitting data analysis technology and discloses a golf hitting data analyzer, which includes a sensor group, a static golf ball detector, an ultra high speed motion detector, a cascaded high-speed motion target tracker, a hitting parameter calculator, and an output. In the present invention, the advanced image processing capability of the GPU chip is utilized, combined with a color high-definition LED display screen to display hitting data. The hitting data is processed in real-time, discrete flight trajectories are calculated, and the three-dimensional flight trajectory of the golf ball is simulated in animation form, without the need for external simulator software, making it more convenient to carry and use.

1 . A golf hitting data analyzer, characterized in that it includes a sensor group, a static golf ball detector, an ultra high speed motion detector, a cascaded high-speed motion target tracker, a hitting parameter calculator, and an output. The sensor group includes a first sensor and a second sensor, and the cascaded high-speed motion target tracker includes a medium precision golf ball tracker and a high-precision golf ball tracker, The hitting parameter calculator includes a golf ball 3D posture calculator, a speed calculator, and a spin calculator. The output includes a parabolic calculator, a graphics display, and Ethernet, USB, Bluetooth, etc. 
     
     
         2 . A golf hitting data analyzer according to  claim 1 , characterized in that the second sensor reads a standard resolution video stream, which is fed into a static golf ball detector for target detection. 
     
     
         3 . A golf hitting data analyzer according to  claim 1 , characterized in that the first sensor outputs a high-speed high-definition infrared camera and a variable resolution video stream. 
     
     
         4 . A golf hitting data analyzer according to  claim 1 , characterized in that: the medium precision golf ball tracker filters the background and noise, calculates the pixel level accuracy of the golf ball position, and obtains a high-resolution filtered video stream. 
     
     
         5 . A golf hitting data analyzer according to  claim 1 , characterized in that: the golf ball three-dimensional posture calculator estimates the three-dimensional posture of these two sets of keyframes from two cascaded trackers, and the speed calculator and speed calculator read the positions of a set of spherical feature points in the two keyframes. 
     
     
         6 . A golf hitting data analyzer according to  claim 1 , characterized in that: the parabolic calculator, combined with air pressure parameters, continues to estimate the flight trajectory line of the ball, and is handed over to a graphical display to complete the drawing of a three-dimensional trajectory line animation and the stacking of hitting parameter text. 
     
     
         7 . A golf hitting data analyzer according to  claim 1 , characterized in that real-time image data collected by two cameras, a high-speed high-definition infrared camera and a high-speed standard definition infrared camera, are parallel sent to an FPGA field programmable logic gate array and output the results, hitting data packets, through peripherals such as Ethernet, USB, Bluetooth, etc.