Method for identifying fingerprint image
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United States of America Patent
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Jan 15, 2013
Grant Date -
Apr 28, 2011
app pub date -
Jan 28, 2010
filing date -
Oct 26, 2009
priority date (Note) -
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Abstract
A method for identifying a fingerprint image includes inputting a fingerprint image captured by an electronic device, calculating an amount of valid ridge pixels in an amount of total ridge pixels of the fingerprint image to generate a first ratio, calculating an amount of successive ridge pixels in an amount of total ridge pixels of the fingerprint image to generate a second ration when the first ratio is identified within a first predetermined range, and determining the fingerprint image as a valid fingerprint image when the second ratio is identified within a second predetermined range.
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