Method of recognizing patterns

Details Method of recognizing patterns Method of recognizing patterns

1988-08-08

1990-02-13

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 1, 382 34, G06K 950

Patent

active

049013629

ABSTRACT:
A method of identifying an object from a digitized image is disclosed. One embodiment of the method is particularly applicable to the classification of ships and a second embodiment is particularly applicable to the classification of aircraft. The digitized image of an unknown object is represented as a set of vertical vectors or, in the second embodiment, a set of radial vectors. The vectors are normalized and then compared to a library containing normalized digitized images of known objects. The unknown object is thereby identified as being similar to the known object corresponding to the library image most closely matching the image of the unknown object.

REFERENCES:
patent: 2838602 (1958-06-01), Sprick
patent: 3050711 (1959-02-01), Harmon
patent: 3112468 (1963-11-01), Kamentsky
patent: 3710323 (1973-01-01), Andrews et al.
patent: 4119946 (1978-10-01), Taylor
patent: 4361830 (1982-11-01), Hanma et al.
patent: 4503557 (1985-03-01), Maeda
patent: 4651289 (1987-03-01), Maeda et al.
patent: 4672678 (1987-06-01), Koezuka et al.
"Digital Image Processing"; William K. Pratt; Univ. of So. Calif.; pp. 332-326 pp. 542-545; 1978.

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