Image dissecting document verification system
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United States of America Patent
Stats
-
Mar 7, 1989
Grant Date -
N/A
app pub date -
Nov 13, 1987
filing date -
Nov 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A document identification system incorporating an identification card bearing image indicia that is sensed and tested for comparison with reference data. The image indicia on the card, e.g. a photographic likeness of the card assignee, is dissected to provide representative pixel data. Individual image pixel representations are quantized, digitized and stored in an escort memory, e.g. a magnetic stripe on the card. The card is verified by again sensing the image indicia and processing the data as before. The resultant test data is correlated with the reference data from the escort memory. The composite indication of the correlation is manifest as an acceptance or a rejection and also as a two-dimensional binary display (black or white pixel areas) to reveal an analysis of the correlation for manual interpretation. The display is variable for different levels of detail.
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Family
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Cited Art Landscape
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