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 (64, 72) 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 (64, 72) 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 (64, 72) 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.