Extracting performance metrics from images
First Claim
Patent Images
1. A method of extracting performance metrics comprising:
- inputting data for a digital video of at least one moving object into a computer readable medium, the digital video including a plurality of frames corresponding to a pixel space through which pixel data for the object moves;
selecting a portion of the object;
processing pixel data corresponding to the selected portion of the object according to a user-defined set of calibration factors;
correlating pixel locations for the selected portion of the object within the pixel space in at least two of the frames to determine movement of the selected portion of the object through the pixel space based upon changes in the pixel locations for the selected portion of the object relative to pixel data not corresponding to the selected object; and
outputting metric information to the computer readable medium regarding movement of the selected portion of the object within the pixel space according to the correlated pixel locations.
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Abstract
Through the use of image processing and set-up calibration techniques, an accurate position of an object may be determined. Embodiments of the present disclosure measure a change in position over a known time interval. Accordingly, the change in position aids in measuring the object'"'"'s metrics such as, for example, position, velocity, acceleration, maximum velocity, maximum acceleration and/or maximum deceleration. The object can be, for example, any person, individual body part, a group of body parts, a vehicle, or any other movable object.
79 Citations
20 Claims
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1. A method of extracting performance metrics comprising:
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inputting data for a digital video of at least one moving object into a computer readable medium, the digital video including a plurality of frames corresponding to a pixel space through which pixel data for the object moves; selecting a portion of the object; processing pixel data corresponding to the selected portion of the object according to a user-defined set of calibration factors; correlating pixel locations for the selected portion of the object within the pixel space in at least two of the frames to determine movement of the selected portion of the object through the pixel space based upon changes in the pixel locations for the selected portion of the object relative to pixel data not corresponding to the selected object; and outputting metric information to the computer readable medium regarding movement of the selected portion of the object within the pixel space according to the correlated pixel locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system to extract performance metrics comprising:
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a digital video recorded on a computer readable medium, the digital video including a plurality of frames corresponding to a pixel space through which pixel data for the object moves; and a processor operable to; input the digital video of at least one moving object; select a portion of the object; process pixel data corresponding to the selected portion of the object according to a user-defined set of calibration factors; correlate pixel locations for the selected portion of the object within the pixel space in at least two of the frames to determine movement of the selected portion of the object through the pixel space based upon changes in the pixel locations for the selected portion of the object relative to pixel data not corresponding to the selected object; and output metric information regarding movement of the selected portion of the object within the pixel space according to the correlated pixel locations. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer program embodied on a computer readable medium and operable to be executed by a processor, the computer program comprising computer readable program code, the code comprising:
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inputting a digital video of at least one moving object, the digital video including a plurality of frames corresponding to a pixel space through which pixel data for the object moves; selecting a portion of the object; processing pixel data corresponding to the selected portion of the object according to a user-defined set of calibration factors; correlating pixel locations for the selected portion of the object within the pixel space in at least two of the frames to determine movement of the selected portion of the object through the pixel space based upon changes in the pixel locations for the selected portion of the object relative to pixel data not corresponding to the selected object; and outputting metric information regarding movement of the selected portion of the object within the pixel space according to the correlated pixel locations.
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Specification