1. A system, comprising: an x-ray source that emits a beam of x-rays toward an object to be imaged; a detector that receives the x-rays attenuated by the object; a data acquisition system (DAS) operably connected to the detector; and a computer operably connected to the DAS and configured with instructions stored in non-transitory memory that when executed cause the computer to: reconstruct at least two images from projection data received from the DAS, each of the at least two images reconstructed with a different view-weighting function; calculate a motion metric based on the at least two images, the motion metric comprising a quantitative estimate of motion between the at least two images; identify a view-weighting function based on the motion metric; and output an image reconstructed with the identified view-weighting function.