System for reading data glyphs
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 2, 2001
Issued Date -
N/A
app pub date -
May 15, 2000
filing date -
Mar 23, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
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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