Extraction of brain tissues by non-parametric region growing method

It is desirable to process the brain images by computers in order to extract brain region from MRI. When these method are applied to MRI, it has been necessary to experimentally decide parameters in order to get best performances. In this paper, we propose a novel algorithm for the automatic extraction of brain tissues from MRI. This algorithm is called the non-parametric region growing (NPRG) method which does not need the parameter. By NPRG, we can get the same extracted brain regions as the conventional method that has to experimentally decide the parameters.