System and method for acquiring an optical target

Details System and method for acquiring an optical target System and method for acquiring an optical target

1993-08-20

1994-03-01

Couso, Jose L.

Image analysis

Histogram processing

For setting a threshold

382 1, 382 8, 382 34, G06K 900, G06K 920, G06K 968

Patent

active

052915646

ABSTRACT:
An optical target is acquired by an optical scanning system according to an in-band target frequency in an input signal from an optical scanning device. Both the in-band energy level and the out-of-band energy level of the input signal from the optical scanning device are determined. These two energy levels are compared and a possible detection of the target is determined according to this comparison. A minimum threshold of in-band energy is required in order for the possible detection to be confirmed.

REFERENCES:
patent: 3947833 (1976-03-01), Eckstein, Jr.
patent: 4497065 (1985-01-01), Tisdale et al.
patent: 4739401 (1988-04-01), Sacks et al.
patent: 4905292 (1990-02-01), Wentworth et al.
patent: 5027422 (1991-06-01), Peregrim et al.

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