A method comprising: acquiring magnetic resonance = MR calibration data using a plurality of radio frequency receive coils ; generating coil sensitivity maps for the radio frequency receive coils based on the MR calibration data; performing magnetic resonance imaging including acquiring magnetic resonance imaging data and generating one or more reconstructed magnetic resonance images , wherein the magnetic resonance imaging comprises partially parallel imaging selected from a group consisting of sensitivity encoding, simultaneous acquisition of spatial harmonics, and generalized autocalibrating partially parallel acquisition, characterized in that the method further comprises: generating reference navigators based on the MR calibration data; generating magnetic resonance navigators based on a portion of the acquired magnetic resonance imaging data or extra data acquired with the magnetic resonance imaging data; sensitivity weighting the magnetic resonance navigators and the reference navigators using the coil sensitivity maps to generate magnetic resonance sensitivity weighted navigators = navigator SWPV, and reference sensitivity weighted navigators = reference SWPV respectively; comparing the navigator SWPV with the reference SWPV to generate subject position information ; and in the one or more reconstructed magnetic resonance images , compensating for subject motion prospectively or retrospectively using the generated subject position information. acquiring magnetic resonance = MR calibration data using a plurality of radio frequency receive coils ; generating coil sensitivity maps for the radio frequency receive coils based on the MR calibration data; performing magnetic resonance imaging including acquiring magnetic resonance imaging data and generating one or more reconstructed magnetic resonance images , wherein the magnetic resonance imaging comprises partially parallel imaging selected from a group consisting of sensitivity encoding, simultaneous acquisition of spatial harmonics, and generalized autocalibrating partially parallel acquisition, characterized in that the method further comprises: generating reference navigators based on the MR calibration data; generating magnetic resonance navigators based on a portion of the acquired magnetic resonance imaging data or extra data acquired with the magnetic resonance imaging data; sensitivity weighting the magnetic resonance navigators and the reference navigators using the coil sensitivity maps to generate magnetic resonance sensitivity weighted navigators = navigator SWPV, and reference sensitivity weighted navigators = reference SWPV respectively; comparing the navigator SWPV with the reference SWPV to generate subject position information ; and in the one or more reconstructed magnetic resonance images , compensating for subject motion prospectively or retrospectively using the generated subject position information. generating reference navigators based on the MR calibration data; generating magnetic resonance navigators based on a portion of the acquired magnetic resonance imaging data or extra data acquired with the magnetic resonance imaging data; sensitivity weighting the magnetic resonance navigators and the reference navigators using the coil sensitivity maps to generate magnetic resonance sensitivity weighted navigators = navigator SWPV, and reference sensitivity weighted navigators = reference SWPV respectively; comparing the navigator SWPV with the reference SWPV to generate subject position information ; and in the one or more reconstructed magnetic resonance images , compensating for subject motion prospectively or retrospectively using the generated subject position information. <EOS>