Intensity inhomogeneity refers to the smooth intensity change inside the originally homogeneous regions. Filter-based inhomogeneity correction methods have been commonly used in literature. In this paper, a new filter-based inhomogeneity correction method is proposed based on fourth order complex diffusion. The effectiveness of the proposed method is compared with other filter-based Inhomogeneity correction methods. The results demonstrate that the proposed method outperforms the other methods in terms of coefficient of variation and coefficient of joint variation. Copyright © 2014 American Scientific Publishers All rights reserved.
Jyothisha J. Nair and Govindan, V. Kb, “Intensity inhomogeneity correction using modified homomorphic unsharp masking”, Journal of Medical Imaging and Health Informatics, vol. 4, pp. 285-290, 2014.