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 Insensitivity to noise

The following figure compares the conventional (left) and GraphEnt (right) map at the section v = 1/2 of the same 20-3Å anomalous Patterson function as for the previous example, but this time after the outliers have been removed from the data set (but only for the calculation of the conventional synthesis, the GraphEnt map still includes the outliers). As it is obvious, the GraphEnt map is rather insensitive to the presence of random (white) noise in the data, but this is definitely not so for the conventional Fourier synthesis.

Figure: Insensitivity to noise
Myoglobin anomalous Patterson

NMG, Nov 2002