REVIEW OF INTENSITY INHOMOGENEITY CORRECTION METHODS FOR BRAIN MRI IMAGES

Intensity inhomogeneity is a smooth intensity change inside originally homogeneous regions. The intensity inhomogeneity degrades performance of image processing algorithms. Intensity inhomogeneity correction methods are important image processing algorithms which are used to reduce the inhomogeneity. Brain image intensity inhomogeneity correction is one of the most important parts of clinical diagnostic tools. Brain images mostly contain inhomogeneity. Therefore, accurate process of brain images is a very difficult task. However, accurate process of these images is very important and crucial for a correct diagnosis by clinical tools. A review of intensity inhomogeneity correction methods for brain MRI images is presented. The review covers methods for intensity inhomogeneity correction and their comparative evaluations based on reported results.