Accession Number : AD0858866

Title :   The Classification of Visual Images by Spatial Filtering.

Descriptive Note : Doctoral thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Tallman, Oliver H., II

Report Date : JUN 1969

Pagination or Media Count : 105

Abstract : From certain known aspects of the human visual system, a model for the classification of visual images is derived. In the model, arrays of basic computational elements of the kind found in human cortex are suitable interconnected and act together to perform a two-dimensional Fourier transform of the spatial input stimulus. Classification is accomplished by comparing spatially filtered transforms of the input stimuli with prototypes which have been obtained and stored during a preliminary training period. Results of several simulations are presented in which hand-printed alphanumeric characters have been classified. (Author)

Descriptors :   *BIONICS), *CLASSIFICATION), (*VISION, (*OPTICAL IMAGES, PATTERN RECOGNITION, INTEGRAL TRANSFORMS, CHARACTER RECOGNITION, LEARNING MACHINES, THESES.

Subject Categories : Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE