CPC G06V 10/431 (2022.01) [G06T 3/00 (2013.01); G06T 3/40 (2013.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01)] | 14 Claims |
1. A method for temporal frequency analysis for identification of unmanned aircraft systems comprising:
obtaining a sequence of video image frames and providing a pixel value from an output frame of the video;
generating a fluctuating pixel value vector;
examining the fluctuating pixel value vector over a period of time;
summing a plurality of frequency coefficients associated with the corresponding vectorized pixel values from the fluctuating pixel value vector to obtain summed center frequency coefficients;
obtaining frequency information present in the pixel fluctuations;
obtaining an image representing a two-dimensional space based on the summed center frequency coefficients;
generating a series of still frames equal to a summation of the center frequency coefficients for pixel variations; and
combining the summation of the center frequency coefficients for pixel variations into spatial locations in a matrix to provide a single image containing the spatial and temporal information present in the sequence of video image frame.
|