1. The Laplacian pyramid as a compact image code;Burt;IEEE Trans. Comm.,1983
2. Optical quality of the human eye;Campbell;J. Physiology,1966
3. Visual Perception;Cornsweet,1970
4. Detection of a target superimposed to a step pattern of illumination;Fiorentini;Atti. Fond. G. Ronchi,1966
5. Detection of a target superimposed to a step pattern of illumination. II - Effects of a just-perceptible illumination step;Fiorentini;Atti. Fond. G. Ronchi,1967