Speed measurement method and apparatus
First Claim
1. A method for measuring a speed of an object comprising the steps of:
- a. taking a video of said object moving across a span;
b. displaying a first frame of said video wherein said object it at a start point;
c. designating said first frame as said start frame;
d. displaying a second frame of said video wherein said object is at an end point;
e. designating said second frame as said end frame;
f. calculating a time difference between said start frame and said end frame.
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Accused Products
Abstract
A method and apparatus for measuring a speed of an object is provided. The speed is measured by taking a video of said object moving across a span. The object may be a baseball thrown from the pitcher'"'"'s mound to home plate. The invention may include a device that with a video camera, a display screen and a control interface. The device generates a video of the object moving from a start point to an end point. The video frames for the start point and the end point are identified and the time span between the start frame and the end frame is determined. A distance between the start point and the end point is also determined. The speed of the object is then calculated from the time span and the distance. The information may then be displayed including a path trace and the calculated speed.
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Citations
30 Claims
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1. A method for measuring a speed of an object comprising the steps of:
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a. taking a video of said object moving across a span; b. displaying a first frame of said video wherein said object it at a start point; c. designating said first frame as said start frame; d. displaying a second frame of said video wherein said object is at an end point; e. designating said second frame as said end frame; f. calculating a time difference between said start frame and said end frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for measuring the speed of a moving object comprising the steps of:
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a. receiving a video of a moving object; b. receiving a distance; c. determining a time span for said moving object as it moves across said distance using said video; d. calculating a speed for said moving object. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A device for measuring a speed of an object travelling across a distance, the device comprised of:
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video recorder for recording a video of the object, said video being comprising of frames; display for displaying said video; input for receiving a start frame indication and for receiving an end frame indication; and processor for determining a time span between said start frame and said end frame, and for calculating the speed of the object using said time span and the distance. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method for displaying a moving object comprising the steps of:
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receiving a video recording of said moving object; inputting a first location point corresponding to a first location of said moving object in a first frame of said video; inputting a second location point corresponding to a second location of said moving object in a second frame of said video; displaying said video with a graphic inserted, said graphic tracing a path from said first location to said second location. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification