Two-dimensional image data reducer and classifier

Details Two-dimensional image data reducer and classifier Two-dimensional image data reducer and classifier

1982-04-16

1984-12-25

Martin, John C.

Image analysis

Histogram processing

For setting a threshold

382 18, 382 28, G06K 936, G06F 15332

Patent

active

044908512

ABSTRACT:
This invention relates to surveillance and counter-surveillance classificon of military vehicles using one-dimensional analysis of the target images. A two-dimensional image is digitized into a n by n pixel matrix which is summed along each row and column to produce a pair of n-component vectors which are invariant under image translation or rotation. A one-dimensional Fourier transform can be obtained from either or both of these two vectors. The image vectors are useful in the identification of U.S. and threat vehicle targets, or in the detection of target image motion.

REFERENCES:
patent: 3466431 (1969-09-01), Fuchs et al.
patent: 3803553 (1974-04-01), Nakono et al.
patent: 3836712 (1974-09-01), Kornreich et al.
patent: 3846752 (1974-11-01), Nakono et al.
patent: 3930230 (1975-12-01), Stephens
patent: 4316218 (1982-02-01), Gay

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