Communications: electrical – Systems – Call station
Patent
1974-11-20
1976-03-30
Wilbur, Maynard R.
Communications: electrical
Systems
Call station
178DIG38, 3401463Q, 340149R, 356156, G01D 2104, G06K 900, H04N 300, G01B 921
Patent
active
039478335
ABSTRACT:
An automatic target detector for determining the probability that an object n water is a swimmer. An electro-optical sensor is provided for viewing a target in water and contrast and width of the target are measured to assign probabilities that a target is a swimmer. A target which shows acceptable contrast and width is encoded and the encoded information is compared with stored reference scenes to make a final determination of whether or not a target is a swimmer.
REFERENCES:
patent: 2412822 (1946-12-01), Malter
patent: 3716823 (1973-02-01), Thompson et al.
patent: 3823261 (1974-07-01), Bolsey
patent: 3885224 (1975-05-01), Klahr
Buczinski S. C.
Collignon Paul S.
Sciascia R. S.
The United States of America as represented by the Secretary of
Wilbur Maynard R.
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