1. A method of processing a positron emission tomography (PET) imaging data set acquired of a subject, the method comprising: generating image content independently for each positron-electron annihilation event of a plurality of positron-electron annihilation events of the PET imaging data set based on time-of-flight (TOF) localization to form a generated image comprising an accumulation of the independently generated image content; wherein the generating operations are performed by a digital processor.