Image analysis – Applications – Personnel identification
Reexamination Certificate
2005-09-28
2009-06-02
Wu, Jingge (Department: 2624)
Image analysis
Applications
Personnel identification
C382S284000
Reexamination Certificate
active
07542594
ABSTRACT:
In construction processing of a fingerprint partial image, distortion occurs in the general image due to accumulation of coordinate errors at image joining positions. While a latest partial image read by a sweep type fingerprint sensor is being displaced relative to an already acquired partial image, a displacement quantity at each displacement position is found. By interpolation computation using the found values, a first vector component indicating a movement quantity of the latest partial image in the slide direction, and first and second candidates for a second vector component indicating a movement quantity in a direction perpendicular to the slide direction are calculated as values each having a resolution higher than the pixel pitch. The latest partial image is disposed so as to be joined to the already acquired partial image on the basis of a movement quantity vector including the first and second vector components.
REFERENCES:
patent: 5495537 (1996-02-01), Bedrosian et al.
patent: 6289114 (2001-09-01), Mainguet
patent: 6459804 (2002-10-01), Mainguet
patent: 6546122 (2003-04-01), Russo
patent: 7110579 (2006-09-01), Hashimoto
patent: 7197168 (2007-03-01), Russo
patent: 7200250 (2007-04-01), Chou
patent: 7412083 (2008-08-01), Takahashi
patent: 2002/0164056 (2002-11-01), Funada
patent: 2003/0026458 (2003-02-01), Nahum
patent: 2003/0123714 (2003-07-01), O'Gorman et al.
patent: 07-306941 (1995-11-01), None
patent: 2002-123823 (2002-04-01), None
patent: 2003-208620 (2003-07-01), None
patent: 2003-248820 (2003-09-01), None
patent: 2003-248828 (2003-09-01), None
patent: 2004-110438 (2004-04-01), None
Allison Andrae S
NEC Infrontia Corporation
Wu Jingge
Young & Thompson
LandOfFree
Image construction method, fingerprint image construction... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image construction method, fingerprint image construction..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image construction method, fingerprint image construction... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4100389