Image analysis – Image transformation or preprocessing – Correlation
Patent
1999-09-20
2000-06-20
Pitts, Harold I.
Image analysis
Image transformation or preprocessing
Correlation
235494, G06K 15316, G06K 964
Patent
active
060786981
ABSTRACT:
A high speed system for locating and decoding glyphs on documents is disclosed. The system includes acquiring one or more images of a document containing a glyph. One-dimensional projections of the images are correlated against a reference function to locate the glyph in the images. The position of the glyph is refined by correlating against a kernel designed to have a maximum response when aligned over a corner of the glyph. Symbols in the glyph are decoded utilizing a kernel which generates a positive response for one symbol type and a negative response for the other.
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Griner James C.
Jones, III Creed F.
Lorton Christopher W.
Orrell, III James D.
Rystrom Larry
Flir Systems Inc.
Pitts Harold I.
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