1. In an imaging system employing a multifocal collimator, a method for displaying an image, the method comprising: in a data processing system of the imaging system: receiving an event stream; framing the event stream into a first buffer; mapping each bin of the first buffer to a corresponding bin of each of: a normalization image buffer and a count image buffer, wherein: the normalization image buffer and the count image buffer are the same dimension, one or more bins of the first buffer correspond to each bin of the normalization buffer such that the geometric distortion introduced by the multifocal collimator is substantially reduced, bins of the first buffer correspond to bins of the count buffer in the same fashion as bins of the first buffer correspond to bins of the normalization buffer, a value of each normalization buffer bin corresponds to the quantity of the one or more of the first buffer bins corresponding to the each normalization buffer bin, and a value of each count buffer bin corresponds to total counts of the one or more of the first buffer bins corresponding to the each count buffer bin; determining an updated image corresponding to the ratio of the values of the count buffer bins to the values of the normalization buffer bins; and displaying an image as a function of the updated image.