Frequency of Signal of a point tracked in a video? I have used MATLAB to track a feature point (corner point) using Lucas-Kanade tracker and plotted its movement through each frame now I need to find its frequency content, how should I find it? (I have only taken $y$-axis movement of the corner point)
You could use Fourier transform by using FFT then find the magnitude of each frquency or simply find the power spectrum by functions like pwelch.