High speed character matcher and method
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United States of America Patent
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-
Sep 8, 1981
Grant Date -
N/A
app pub date -
Aug 24, 1979
filing date -
Aug 24, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high speed character matcher and method for measuring the similarity between a pair of binary patterns representing two-dimensional images. The patterns are compared on a bit by bit basis and when a discrepancy is detected, it is assigned an error penalty which is based on the two-dimensional context in which the error occurred. The types of error context which are typical in the comparison of distorted but otherwise similar characters are given a lower error than those typically encountered in the comparison of dissimilar characters.
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