International Journal of Biomedical Imaging / 2011 / Article / Fig 3

Research Article

True 4D Image Denoising on the GPU

Figure 3

(a) Two-dimensional monomial filters , of the second order, in the frequency domain. Green indicates positive real values, and red indicates negative real values. The black lines are isocurves. (b) Two-dimensional monomial filters , of the second order, in the spatial domain. Green indicates positive real values, and red indicates negative real values. Note that these filters are even and real.
952819.fig.003a
(a)
952819.fig.003b
(b)

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