Correction of intensity inhomogeneity in magnetic resonance images using ramp filter

Abstract

The paper deals with the problem of correcting the intensity non\-uniformity in magnetic resonance images.
This problem is due to the peculiarities of the imaging equipment, may be caused by magnetic coils, and other technical reasons.
Bias field makes it difficult to recognize objects in images and make a correct diagnosis. In the paper, the method of removing such noise using ramp filter known also as the rho filter is considered. The numerical experiments on test images and real-world images of small animals are presented