Method and apparatus for optical storage of numerical images, an

Details Method and apparatus for optical storage of numerical images, an Method and apparatus for optical storage of numerical images, an

1980-03-20

1983-06-07

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

365106, 365127, G11C 1300

Patent

active

043873634

ABSTRACT:
The invention relates to a method of optical storage of a numerical image and to methods of analog read-out and numerical processing of an image thus stored as well as to systems which make use of said method.
All the digits of a given rank of the numbers constituting the numerical image are recorded on the same medium consisting of a film, for example, in the form of juxtaposed surface elements which, in a given example, are made conventionally opaque to light when the corresponding digit is either 1 or 0 and only in this case in order to constitute a sub-image. A surface element associated with one digit occupies a position within the sub-image which is similar to the position occupied by the number containing said digit in the numerical image.

REFERENCES:
patent: 3191157 (1965-06-01), Parker et al.
patent: 3479652 (1969-11-01), Foster
patent: 3573433 (1971-04-01), Harris
patent: 3656120 (1972-04-01), Maure
patent: 3961315 (1976-06-01), Yokoyama

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