A Fourier transform is performed on {TAIL ~ the windowed spectral image data} along {HEAD ~ the λ dimension}, at locations along the x dimension and y dimension, to generate Fourier coefficients associated with each of the locations 
A Fourier transform is performed on { TAIL ~ the windowed spectral image data } along { HEAD ~ the λ dimension } , at locations along the x dimension and y dimension , to generate Fourier coefficients associated with each of the locations
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH