Launch monitor using three-dimensional imaging
A launch monitor that generates three dimensional images to accurately measure movement of golf objects. In an aspect, the launch monitor can utilize stereographic camera systems to capture images from which three dimensional images can be generated. In an aspect, the launch monitor can utilize light-field camera systems to capture images of the golf objects. In an aspect, the camera systems can capture images in color.
1. A launch monitor configured to monitor a dynamic golf object, the launch monitor comprising:
a. a camera system configured to capture a plurality of images of the dynamic golf object for use to generate three dimensional images, wherein the camera system comprises at least one light field camera subsystem comprising at least one light field camera, wherein the light field camera is configured to capture intensity of light and direction of light rays; and
b. a processor in communication with the camera subsystem, the processor configured to:
i. generate the three dimensional images from the plurality of images captured by the camera subsystem; and
ii. generate kinematic information of the dynamic golf object from the three dimensional images.
2. The launch monitor of claim 1 , wherein the three dimensional images are generated by determining the actual distance of the dynamic golf object from the launch monitor.
3. The launch monitor of claim 2 , wherein the three dimensional images are generated from a sequential portion of the plurality of images to form sequential three dimensional images, wherein the kinematic information is generated by finding a difference in distance of selected points of the dynamic golf object in the sequential three dimensional images.
4. The launch monitor of claim 3 , wherein the distance is determined from measuring in the x, y, and z directions.
5. The launch monitor of claim 1 , wherein the light field camera comprises a high speed light field camera.
6. The launch monitor of claim 1 , wherein the light field camera comprises a color light field camera.
7. The launch monitor of claim 1 , wherein the camera system comprises color cameras and the processor is further configured to utilize color filters to eliminate false light from the dynamic golf object in the plurality of images.
8. The launch monitor of claim 7 , wherein the color filters comprise HSI filters.
9. The launch monitor of claim 1 , wherein the processor is further configured to:
a. process the plurality of images by:
i. identifying markings of interest of the dynamic golf object; and
ii. distinguishing the markings of the interest from the background;
b. analyze the images to identify pixel locations of the dynamic golf object and the markings of interest into three dimensional locations; and
c. generate the three dimensional images from the pixel locations.
10. The launch monitor of claim 1 , wherein the dynamic golf object comprises a golf ball and a golf club, wherein the launch monitor is further configured to generate the kinematic information of both the golf ball and the golf club at the same time.
11. A launch monitor configured to monitor a dynamic golf object, the launch monitor comprising:
a. a camera system configured to capture a plurality of images of the dynamic golf object for use to generate sequential three dimensional images, wherein the camera system comprises at least one high speed light field camera; and
b. a processor in communication with the camera subsystem, the processor configured to:
i. generate the sequential three dimensional images from the a portion of sequential images from the plurality of images captured by the camera subsystem by determining the actual distance of the dynamic golf object from the launch monitor; and
ii. generate kinematic information of the dynamic golf object from the three dimensional images by measuring the distance in three directions.
12. The launch monitor of claim 11 , wherein the at least one high speed light field camera further comprises a color high speed light field camera, wherein the processor is configured to apply filters to eliminate false light from the portion of sequential images.
13. The launch monitor of claim 11 , wherein the camera system comprises at least one stereographic camera subsystem comprising at least two high speed cameras.
14. The launch monitor of claim 13 , wherein the at least two high speed cameras have adjustable shutter speeds.