Correlated imaging has attracted noteworthy attention due to the advantages in non-local property, strong anti-interference capability, etc. And it has wide applications in three-dimensional imaging, remote sensing, biomedical technique, and national defense and military. In this paper, according to different stages of development,we introduce the development history and applications of the entangled two-photon correlated imaging, (pseudo) thermooptical correlated imaging, and computational correlated imaging, especially focusing on the improvement arising from the ICCD camera. Also, we briefly discuss the physical nature of the thermooptical correlated imaging. Finally, we give a pithy view of the practical applications.