US 11,756,212 B1
Enhanced analysis techniques using composite frequency spectrum data
Jeffrey R. Hay, Prospect, KY (US); Mark William Slemp, Tellico Plains, TN (US); and Kenneth Ralph Piety, Knoxville, TN (US)
Assigned to RDI TECHNOLOGIES, INC., Knoxville, TN (US)
Filed by RDI TECHNOLOGIES, INC., Knoxville, TN (US)
Filed on Mar. 18, 2022, as Appl. No. 17/698,529.
Application 17/698,529 is a continuation of application No. 17/356,617, filed on Jun. 24, 2021, granted, now 11,282,213.
Claims priority of provisional application 63/043,299, filed on Jun. 24, 2020.
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 7/246 (2017.01); G06T 7/90 (2017.01); G06F 3/04847 (2022.01); G06T 11/00 (2006.01)
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
OG exemplary drawing
 
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.