1. A method for performing motion compensation in a series of magnetic resonance (MR) images, comprising: acquiring a set of MR image frames spanning different points along an MR recovery curve; generating a motion-free synthetic image for each of the acquired MR image frames using prior knowledge pertaining to an MR recovery curve; registering each of the acquired MR images to its corresponding generated synthetic image; and correcting motion within each of the acquired MR image frames based on its corresponding generated synthetic image that has been registered thereto.