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'''2D FFT'''<br> | '''2D FFT'''<br> | ||
<math>FFT2(f) = FFT_{x}(FFT_{y}(f)) = FFT_{y}(FFT_{x}(f))</math> | <math>FFT2(f) = FFT_{x}(FFT_{y}(f)) = FFT_{y}(FFT_{x}(f))</math> | ||
==Phase correlation== | |||
{{main Wikipedia: Phase correlation}} | |||
==Short-time Fourier transform== | ==Short-time Fourier transform== |