1. A method for magnetic resonance imaging (MRI) for musculoskeletal tissue segmentation, comprising: a) collecting MRI image data using at least two different-three-dimensional (3D) MR sequences; b) using voxel values from data from each 3D MR sequence as elements of a feature vector; c) comparing the feature vector with classification boundaries to classify musculoskeletal tissue type of the voxel; d) repeating steps b-c for a plurality of voxels; e) generating an image from the classified musculoskeletal tissue types for the plurality of voxels to provide a musculoskeletal segmentation image; f) processing the collected MRI image data to obtain anatomical information; g) generating additional geometrical information for each voxel from the anatomical information; and h) using the generated additional geometrical information as elements of the feature vector along with the voxel values from the collected MRI image data.