Accession Number:

ADA048984

Title:

Characterization of the Alphabet for Digital Processing.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1976-11-01

Pagination or Media Count:

124.0

Abstract:

The development of a method for uniquely characterizing the many different symbols which are used to represent data and having this characterization general enough to allow for minor variations in the symbols would enable a computer to obtain information directly from written text. The characterization consisted of obtaining a Fourier Transform representation for each character of the alphabet and a study of the harmonic spectral density in order to obtain a pattern by which the character may be recognized. The pattern by necessity must be unique and recognizable. After establishment of the reference alphabet, each character was distorted in a like manner so that the effects of the distortion upon all the harmonic coefficients could be seen. The letters, A, E, R, and S were studied in greater depth and the results are given. The most important outgrowth of the thesis was the fact that, by using only the resolution which was used in the characterization of the listed reference set, a machine should be capable of reading almost any material consisting of capital letters and being somewhat symmetric in physical shape.

Subject Categories:

  • Bionics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE