Accession Number : AD0677217

Title :   MACHINE RECOGNITION OF HANDWRITTEN NUMBERS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Trufus,V. M. ; Medvedev,F. I.

Report Date : 20 DEC 1967

Pagination or Media Count : 9

Abstract : A method of recognition of handwritten digits according to elements of shape is described. The sign of the first derivative of a number element is taken as the principal distinguishing feature. The breakdown of a number into elements and the determination of the signs of the first derivative are accomplished with the aid of an electron-optical device moving the image of the number in front of a stack of photocells. The received information is automatically compared with the standard and the number is determined. A block diagram of the device and the levels of the algebra of logic describing the logic elements of the system are presented. When a P13 type semiconductor triode is used in the logic circuits, the electronic part of the device assures a readout rate of 35,000 digit signs per sec. (Author)

Descriptors :   (*NUMBERS, *CHARACTER RECOGNITION), GEOMETRIC FORMS, ELECTROOPTICS, LOGIC CIRCUITS, SEMICONDUCTOR DEVICES, TRIODES, USSR

Subject Categories : Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE