Volumetric Bias Correction

  • Edoardo Ardizzone
  • Roberto Pirrone
  • Salvatore La Bua
  • Orazio Gambino
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4418)


This paper presents a method to suppress the bias artifact, also known as RF-inhomogeneity, in Magnetic Resonance Imaging (MRI). This artifact produces illumination variations due to magnetic field fluctuations of the device. In the latest years many works have been devoted to face this problem. In this work we present the 3D version of a new approach to bias correction, which is called Exponential Entropy Driven Homomorphic Unsharp Masking (E 2 D − HUM). This technique has been already presented by some of the authors for the 2D case only. The description of the whole method is detailed, and some experimental results are reported.


Bias Correction Shannon Entropy Intensity Nonuniformity Magnetic Resonance Image Medical Magnetic Resonance Image Simulator 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Berlin Heidelberg 2007

Authors and Affiliations

  • Edoardo Ardizzone
    • 1
  • Roberto Pirrone
    • 1
  • Salvatore La Bua
    • 1
  • Orazio Gambino
    • 1
  1. 1.Universita’ degli Studi di Palermo, DINFO - Dipartimento di Ingegneria Informatica, viale delle Scienze - Edificio 6 - Terzo piano, 90128 Palermo 

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