System for generating rolled fingerprint images
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 1990
Grant Date -
N/A
app pub date -
Jan 25, 1988
filing date -
Jan 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for generating data characteristic of a rolled fingerprint image in real time. A finger is continuously rolled across a finger receiving surface of an optical device. The finger receiving surface is imaged to generate digital data representative of fingerprint images propagated therefrom. A first array of data characteristic of a fingerprint image of a first finger slice is stored, and merged into a composite array. After the first array is merged into the composite array, a second array of data characteristic of a second finger slice which is adjacent to and overlaps the first finger slice is stored. The second array is then merged into the composite array by storing data in the composite array as a function of a comparison and an average of data in the composite array and second array which are characteristic of overlapping portions of the finger slices. The steps of storing and merging are then repeated for third and subsequent arrays characteristic of finger slices as the finger is rolled, until the composite array characterizes the rolled fingerprint image.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully