In this paper, we present an automatic hierarchical framework for the segmentation of a variety healthy tissues and lesions in brain MRI of patients with Multiple Sclerosis (MS). At the voxel level, lesion and tissue labels are estimated through a Markov Random Field (MRF) segmentation framework that leverages spatial prior probabilities for 9 healthy tissues through multi-atlas fusion (MALF). ...

To cope with the difficulty of 3D MRI brain scans segmentation, specification and instantiation of a priori models should be constrained by local images characteristics. We introduce situated cooperative agents for the extraction of domain and control knowledge from image grey levels. Their dedicated behaviours, i.e segmentation of one type of tissue, are dynamically adapted function of their p...

Image segmentation plays an important role in medical imaging applications. In this chapter, an automatic MRI brain image segmentation framework using gravitational search based clustering technique has been proposed. This framework consists of two stage segmentation procedure. First, non-brain tissues are removed from the brain tissues using modified skull-stripping algorithm. Thereafter, the ...

Segmentation is the process of partitioning a digital image into multiple segments (sets of pixels). Such common segmentation tasks including segmenting written text or segmenting tumors from healthy brain tissue in an MRI image, etc. Chan-Vese model for active contours is a powerful and flexible method which is able to segment many types of images, including some that would be quite difficult ...

The objective of this proposed work is to progress brain image segmentation methods for medical imaging applications, using Fuzzy based clustering segmentation approaches. The main aim is to propose a brain epileptic segmentation system suited for MRI processing using temporal filter. The resolution is to simply segment epilepsy in MRI with reproducible outcomes. Cluster analysis recognizes col...

The objectives of the study were to develop a framework for automatic outer and inner breast tissue segmentation using multi-parametric MRI images of the breast tumor patients; and to perform breast density and tumor tissue analysis. MRI of the breast was performed on 30 patients at 3T-MRI. T1, T2 and PD-weighted(W) images, with and without fat saturation(WWFS), and dynamic-contrast-enhanced(DC...

The aim of the project is to detect and classify the brain tumor from MRI image. This project involves mainly 6 stages namely Input Image, Preprocessing, Segmentation, Post Processing, Feature Extraction and Classification. In this phase, 4 stages are implemented, Input image, preprocessing, segmentation and post processing. Input image reads the MRI brain image. Preprocessing mainly includes i...

The precise information of a tumor plays an important role in the treatment of malignant tumors. The manual segmentation of brain tumors from Magnetic Resonance images (MRI) is time consuming task. Processing of MRI images is one of the parts of this field. The detection and extraction of tumor is done from patient’s MRI scan images of the brain. The basic concepts of the image processing are s...

An Insight Toolkit (ITK) implementation of our knowledgebased segmentation algorithm applied to brain MRI scans is presented in this paper. Our algorithm is a refinement of the work of Teo, Saprio, and Wandall. The basic idea is to incorporate prior knowledge into the segmentation through Bayes’ rule. Image noise is removed via an affine invariant anisotropic smoothing of the posteriors as in H...

A fully automatic procedure for brain tissue classification of single channel magnetic resonance images (MRI) of human Brain is described. Two different ANN classifiers namely Learning Vector Quantization (LVQ), Multilayer Perceptron (MLP) are used for segmentation (classification) of tissues in brain MR images. Each tissue type are segmented and assigned with different gray shades for represen...