Fourier volume rendering
Tom Malzbender · ACM Transactions on Graphics · 1993
In computer graphics we have traditionally rendered images of data sets specified spatially, Here, we present a volume rendering technique that operates on a frequency domain representation of the data set and that efficiently generates line integral projections of the spatial data it represents, The motivation for this approach is that the Fourier Projection-Slice Theorem allows us to compute 2-D projections of 3-D data seta using only a 2-D slice of the data in the frequency domain.In general, these "X-ray-like" images can be rendered at a significantly lower computational cost than images generated by current volume rendering techniques, Additionally, assurances of image accuracy can he made.