[Neuroimaging] nlmeans in HCP data

Ariel Rokem arokem at gmail.com
Thu Feb 4 18:58:34 EST 2016


Hi everyone,

does anyone use the Dipy nlmeans with HCP diffusion data? Is that a good
idea? What do you use to estimate the sigma input? If you use
dipy.denoise.noise_estimate.estimate_sigma, how do you set the `n` keyword
argument for these data? Since the preprocessed data has gone through some
heavy preprocessing, I am not sure whether assuming that 32 (the number of
channels in these machines, if I understand correctly) is a good number is
reasonable.

Thanks!

Ariel
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