This paper describes a method of hybrid processing of data and its applications in various spheres. The principle is to use an optical Fourier transform device coupled to a minicomputer via a mechanically driven diaphragmed monodiode scanning system. The principles and technologies are discussed.
P. L. Wendel,
"Digital Image Processing With Coherent Light: A Method And Some Applications," Optical Engineering 22(3), 223330 (1 June 1983). https://doi.org/10.1117/12.7973114