  Optical superresolution microscopy is an important field, where nonlinear
optical processes or prior information is used to defeat the classical
diffraction limit of light. Quantum correlation microscopy uses photon arrival
statistics from single photon emitters to aid in the determination of
properties including the number of emitters and their relative brightness. Here
we model quantum correlation microscopy in the few emitter regime, i.e. around
four single photon emitters below the diffraction limit. We use the Akaike
Information Criterion to determine the number of emitters and we vary the
relative contributions of intensity to quantum correlation information to
determine contribution that provides optimal imaging. Our results show
diffraction unlimited performance and a change in localisation scaling
behaviour dependant on emitter closeness.
