Pattern matching method with pixel vectors
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United States of America Patent
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Jan 13, 1998
Grant Date -
N/A
app pub date -
Jul 2, 1996
filing date -
Aug 9, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Each of a certain number of sequences of binary pixels chosen according to some prescribed rules from m.times.n matrix of pixcels is referred to vector v.sub.i. A standard character k is represented with m.times.n matrix of binary pixels, from which the vectors g.sub.ki are derived. The reference vectors G.sub.ki are comprised of the vectors g.sub.ki and g.sub.ki which are generated by modification of g.sub.ki. A recognition object is captured to yield m.times.n matrix of binary pixels, from which the vectors v.sub.i are derived for comparison with the reference vectors G.sub.ki. Matching of v.sub.i with one of the reference vectors G.sub.ki adds a count to the standard pattern k corresponding to G.sub.ki. The standard character k with the maximum score of the matching count is recognized as the recognition object.
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