1. A magnetic resonance imaging (MRI) system comprising: a magnet system configured to generate a static magnetic field about at least a bore of the MRI system; a plurality of gradient coils configured to apply a gradient field to the static magnetic field; a radio frequency (RF) system including an array of coils configured to apply an excitation field and acquire MR image data therefrom; a computer system configured to: control the RF system to acquire coil calibration data from a subject including a material causing inhomogeneities in the static magnetic field when arranged in the bore of the MRI system; after acquiring the coil calibration data, control the RF system to acquire imaging data with from the subject; analyze the imaging data to generate spectral bin data with respect to a plurality of spectral bins, wherein the spectral bin data relates specific resonance frequencies to distinct spatial locations in the static magnetic field of the MRI system; and reconstruct an image of the subject from the imaging data using the coil calibration data and the spectral bin data to provide spatial encoding of the image for each spectral bin.