1. A method of classifying component tissues of magnetic resonance images, the method comprising: performing a proton density contrast weighted, short echo-time magnetic resonance imaging measurement over a first volume field-of-view region of interest (ROI); repeating a series refining the first volume field-of-view ROI into a plurality of subsequent smaller ROI volumes having respective smaller resolutions; reconstructing a complex image from the plurality of magnetic resonance imaging measurements; performing a bias correction on at least one of the plurality of subsequent smaller ROI volumes; and classifying the ROI volumes by tissue type based on the bias-corrected image signal, wherein at least one tissue type is bone.