A signal processing model for display/perception processes

A signal processing approach has been used to relate human performances in detecting image targets to image, display and perception characteristics. The model parameters have been estimated experimentally. Results are consistent with those found in the literature. The authors demonstrate that a signal processing approach describes human performances as well as psycho-visual approaches, and points out that JND and PDR strongly depend on experimental conditions, in particular image characteristics, and thus have no absolute meaning.