Image analysis – Histogram processing – For setting a threshold
Patent
1981-07-31
1984-11-13
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
343 55A, 367 43, 382 36, G06K 900
Patent
active
044830173
ABSTRACT:
A pattern recognition system includes a filter bank, coupled via rectifying elements to integrators which are coupled via different weighting elements to the summing nodes of a summing amplifier. The filter bank, integrators, and weighting elements include switched capacitors enabling the manufacture of the filters, rectifiers, integrators and weighting elements on a monolithic integrated circuit chip. The frequencies at which the capacitors are switched are programmable enabling the system to be easily "retuned".
REFERENCES:
patent: 3180445 (1965-04-01), Schwartz et al.
patent: 3319229 (1967-05-01), Fuhr et al.
patent: 3421141 (1969-01-01), Meyerhoff
patent: 4001820 (1977-01-01), Rosenbaum et al.
patent: 4028673 (1977-06-01), Taylor et al.
patent: 4389647 (1983-06-01), Fanuele et al.
Bradshaw John L.
Hampel Daniel
Boudreau Leo H.
Haas George E.
RCA Corporation
Schanzer Henry I.
Tripoli Joseph S.
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