Robust identification code recognition system
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United States of America Patent
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-
Jan 15, 2002
Grant Date -
N/A
app pub date -
Feb 25, 1998
filing date -
Mar 1, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for recognizing the characters on surfaces where alphanumeric identification code ('ID' for short) may be present such as a license plate. The present system is particularly adapted for situations where visual distortions can occur, and utilizes a highly robust method for recognizing the characters of an ID. Multiple character recovery schemes are applied to account for a variety of conditions to ensure high accuracy in identifying the ID. Accuracy is greatly enhanced by taking a comprehensive approach where multiple criteria are taken into consideration before any conclusions are drawn. Special considerations are given to recognizing the ID as a whole and not just the individual characters.
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