Using the Phase for MR Image Segmentation: Application to the Bone of the Knee
Bourgeat P, Stanwell P, Ourselin S, Ramadan S
BioMedia Lab, Autonomous Systems Laboratory, ICT Centre, CSIRO
This abstract considers the problem of tissue classification in 3D MRI by the mean of texture analysis. The main contribution is the use of the phase of the complex MR image, to derive texture features. Phase can give information about tissue interfaces and provide a good discrimination between the bone and the surrounding tissues but is usually not used because of the phase unwrapping problem. We present a method to extract textural information from the phase, without the need of phase unwrapping. The textural information extracted from the magnitude and the phase can be combined to improve tissue classification.