On the estimation of the coefficient of variation for anisotropic diffusion speckle filtering

By S. Aja‐Fernández, Carlos Alberola-López. IEEE Transactions on Image Processing, 2006

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Removing Multiplicative Noise by Douglas-Rachford Splitting Methods (2010, methodology): “Beyond variational approaches there exist other techniques to remove multiplicative noise, e.g., local linear minimum mean square error approaches [46, 47] or anisotropic diffusion methods [ 1 , 44, 66] which will not be addressed in this paper.”
Oriented Speckle Reducing Anisotropic Diffusion (2007, methodology): “They choose to apply the diffusion equation , where (14) or (15) As noted by [17], using (14) is equivalent to using a discrete version of the equation (16) (17) The equivalent using Kuan's filter is (as mentioned in [17] In a recent study, Aja-Fernández and Alberola-López [17] modify the SRAD…”