Nonlinear Smoothing of MR Images Using Approximate Entropy - A Local Measure of Signal Intensity Irregularity.

Geoffrey J. M. Parker Julia A. Schnabel Gareth J. Barker Nonlinear Smoothing of MR Images Using Approximate Entropy - A Local Measure of Signal Intensity Irregularity. 484-489 1999 conf/ipmi/1999 IPMI http://dx.doi.org/10.1007/3-540-48714-X_50 db/conf/ipmi/ipmi1999.html#ParkerSB99