Patent ID: 7251379

Claim:
A method for computing an S transform dataset of multidimensional image data of an object comprising: receiving the multidimensional image data; fast Fourier transforming the multidimensional image data into Fourier domain producing a Fourier spectrum partitioning the Fourier frequencies of the multidimensional image data into a plurality of portions of frequencies for simultaneously processing the S spectrum corresponding to the portions of the Fourier frequencies; performing at each frequency of a plurality of frequencies of the Fourier spectrum: a) calculating a localizing Gaussian window at a current frequency; b) shifting the Fourier spectrum in k space directions; c) pointwise matrix multiplying the shifted Fourier spectrum with the localized Gaussian window producing a resulting L matrix; d) inverse fast Fourier transforming the L matrix producing the S transform at the current frequency; and, collecting the S transform at each frequency producing the S transform dataset.