CPC G06T 7/246 (2017.01) [G06F 3/04847 (2013.01); G06T 7/90 (2017.01); G06T 11/00 (2013.01); G06T 2200/24 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/20092 (2013.01)] | 1 Claim |
1. A system for evaluating a moving object undergoing periodic motion using at least one video acquisition device that acquires sampled data in a video recording, the video recording having a plurality of video images of the moving object which are divisible into individual video image frames, and with each frame being divisible into a plurality of pixels, comprising:
a processor and a memory for storage of the individual video image frames; and
a computer program operating in said processor,
wherein the video acquisition device is configured with an adjustable frame rate that allows the video images to be acquired at a sampling rate that is sufficient to capture a plurality of frequencies present in the periodic motion; and
wherein the computer program operates on a subset of pixels from the plurality of pixels in a field of view of the video recording to create a frequency spectrum for each pixel in the subset of pixels, each frequency in the frequency spectrum having a peak, to construct a composite frequency spectrum presenting one or more selected frequencies from among the plurality of frequencies wherein the selection of frequencies is based on predetermined criteria, and to store a phase value for each peak associated with each pixel in the subset of pixels.
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