1. A method comprising: acquiring, with a detector comprising a plurality of rings defining corresponding slices, emission event data of an object of interest; determining, with one or more processing units, an amount of motion for each of a plurality of segments, wherein each segment comprises at least one of the slices and corresponds to less than an axial field of view (AFOV) of the detector; performing, with the one or more processing units, motion mitigation for segments for which the amount of motion satisfies a threshold to provide motion mitigated data, and not performing motion mitigation for segments for which the amount of motion does not satisfy the threshold to provide non-mitigated data; reconstructing, with the one or more processing units, an image using the motion mitigated data and the non-mitigated data; and displaying the image on a display.