Devices, systems, and methods for measuring spin of a golf ball

A system, comprising:

• a memory;
• a display;
• and
• one or more processors operatively coupled to the memory, the processors being configured to execute operations that, when executed, cause the processors to perform operations, the operations, comprising:
• obtaining at least two images of a golf ball after a golf club contacts the golf ball captured by a camera positioned proximate to a golfer;
• identifying a time span between the obtained at least two images to create a numerical time difference;
• defining an outline of the golf ball while the golf ball is in flight;
• finding at least one marking on the golf ball in each golf ball image;
• finding rotations of the golf ball by aligning the at least one marking on the golf ball in each golf ball image;
• and
• converting the rotations of the golf ball into spin values by combining the rotations and the numerical time differences, wherein the spin values comprise at least a spin axis and a rotation angle,
• wherein the at least two images of the golf ball are taken by the camera in quick succession and stored in quick succession,
• wherein the camera further comprises a long shutter that stays open for an extended period of time,
• wherein the camera further comprises at least two strobe flashes, wherein the at least two strobe flashes create a double exposure effect with the at least two images of the golf ball superimposed in one overall image taken by the camera.

A non-transitory computer-readable storage medium having encoded therein programming code executable by a processor to perform operations, the operations comprising:

• obtaining at least two images of a golf ball after a golf club contacts the golf ball;
• identifying a time span between the obtained at least two images to create a numerical time difference;
• defining an outline of the golf ball while the golf ball is in flight;
• finding at least one marking on the golf ball in each golf ball image;
• finding rotations of the golf ball by aligning the at least one marking on the golf ball in each golf ball image;
• and
• converting the rotations of the golf ball into spin values by combining the rotations and the numerical time differences, wherein the spin values comprise at least a spin axis and a rotation angle,
• wherein the at least two images of the golf ball are taken by the camera in quick succession and stored in quick succession,
• wherein the camera further comprises a long shutter that stays open for an extended period of time,
• wherein the camera further comprises at least two strobe flashes, wherein the at least two strobe flashes create a double exposure effect with the at least two images of the golf ball superimposed in one overall image taken by the camera.