Image analysis – Applications – Personnel identification
Reexamination Certificate
2007-03-27
2007-03-27
Bali, Vikkram (Department: 2624)
Image analysis
Applications
Personnel identification
Reexamination Certificate
active
10194994
ABSTRACT:
Method and system for reconstructing seamless fingerprint image from set of image slices, or frames, from fingerprint swipe sensor. Robust normalized cross-correlation procedures are used for frame evaluation and image matching. Efficient use of device processing resources including memory by keeping only data frames that indicate moving finger and discards frames where no finger exists at sensor during acquisition or finger has not moved since last frame was acquired. Capability to adjust sensor settings during acquisition process to obtain optimal results. Logic ensures operation across different physical systems and sensor characteristics with varying acquisition speeds. Statistics regarding resulting reconstructed image and finger swiping process are computed and embedded in reconstructed image and are useful to the downstream fingerprint matching system, and by embedding in image, inventive system and method ensure that any fingerprint processing system can use information if when called upon to do so.
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Atrua Technologies, Inc.
Bali Vikkram
Perkins Coie LLP
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