The problem of mating the pictorial world of bio-medical imagery with the digital one of computers is a difficult one. Basicly, the problem is one of assimilating massive quantities of raw data into the computer and then operating on that data at a rate which is fast enough for clinical decisions.
L. B. Lesem,
P. M. Hirsch,
J. A. Jordan,
"Optical Data Processing Using Kinoforms", Proc. SPIE 0026, Quantitative Imagery in the Biomedical Sciences I, (1 June 1971); doi: 10.1117/12.975341; https://doi.org/10.1117/12.975341