Assume you have a camera with two lenses and you want to measure the distance a golf ball traveled, up to 1000 feet.
Also assume the camera system offers a HFOV of 180 degrees.
1) What are the drawbacks to measuring distance with a single camera (with two lenses)?
2) What are the drawbacks to measuring speed with a camera system like this?
3) In particular, how does a camera system like this compare to a [laser device like this](https://www.amazon.com/Bosch-GLR225-Laser-Distance-Measurer/dp/B003NSBG5Y) for measurement and a [radar device like this](https://www.amazon.com/Bushnell-101911-Velocity-Speed-Gun/dp/B0002X7V1Q) for speed?
Accuracy presumably depends in part on resolution, i.e., higher resolution yields more accurate results. So for distance assume acceptable tolerances are +/- 10 feet for distance and for speed +/- 5 mph. If resolution is the only variable, how do you determine the minimum resolution required to achieve the aforementioned tolerances?
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