Image analysis – Histogram processing – For setting a threshold
Patent
1989-06-02
1991-01-22
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 30, 382 37, G06K 968
Patent
active
049876040
ABSTRACT:
A method of operating optical pattern recognition apparatus which relies upon second opinions in which stored offset coordinates match one another within a predetermined tolerance to avoid unnecessarily high numbers of rejects, undesirable levels of risk in terms of pattern misalignments, or excessive cycle times in terms of unnecessary looping through different grey level thresholds.
REFERENCES:
patent: 3651495 (1972-02-01), Kiji
patent: 3715724 (1973-02-01), Demonte et al.
patent: 4385322 (1983-05-01), Hubach et al.
patent: 4491962 (1985-01-01), Sakou et al.
patent: 4547800 (1985-10-01), Masaki
Boudreau Leo H.
Delco Electronics Corporation
Duke Albert F.
Johns Andrew W.
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