Image analysis – Image enhancement or restoration – Object boundary expansion or contraction
Reexamination Certificate
2007-02-13
2007-02-13
Tung, Kee M. (Department: 2628)
Image analysis
Image enhancement or restoration
Object boundary expansion or contraction
C345S619000
Reexamination Certificate
active
10875295
ABSTRACT:
There is disclosed a graphic processing method in which a first figure skeleton apart from an outline of a figure by each equal distance in a central direction of the figure is calculated using at least one of a medial axis and a chordal axis with respect to a figure representing the outline of the object shape reflected in a digital image by a set of points, branch lines to the skeleton from a vertex of the figure in the calculated first figure skeleton are removed to obtain a second figure skeleton, and a curve coordinate system is defined using the second figure skeleton as one coordinate axis and using a distance between the second figure skeleton and the outline of the figure as the other coordinate axis with respect to data obtained by one circulation of the outline of the figure using one end point of the second figure skeleton as a start point and using the other end point as a terminal point to transform the coordinate of points on the outline of the figure into the other coordinate axis of the curve coordinate system.
REFERENCES:
patent: 3069654 (1962-12-01), Hough
patent: 4868871 (1989-09-01), Watson, III
patent: 5644655 (1997-07-01), Windsor
patent: 5796868 (1998-08-01), Dutta-Choudhury
patent: 5845007 (1998-12-01), Ohashi et al.
patent: 6122397 (2000-09-01), Lee et al.
patent: 6133921 (2000-10-01), Turkiyyah et al.
patent: 6393159 (2002-05-01), Prasad et al.
patent: 6563324 (2003-05-01), Nichani
patent: 6859911 (2005-02-01), Herasimchuk
patent: 2004/0096092 (2004-05-01), Ikeda
patent: 1261969 (2000-08-01), None
patent: 2000-293690 (2000-10-01), None
patent: 2001-338304 (2001-12-01), None
patent: 2002-31525 (2002-01-01), None
patent: 2003-016463 (2003-01-01), None
patent: 2003-31469 (2003-01-01), None
patent: 2004-78659 (2004-03-01), None
patent: WO 98/50889 (1998-11-01), None
Prasad, “Morphological Analysis of Shapes,” CNLS Newsletter (Jul. 1997), 139:1-18.
Preparata et al., “Computational Geometry,” Springer-Verlag (1985), pp. 258-314.
Uesaka et al., “A New Fourier Descriptor Applicable to Open Curves,” IEICE (1982), J67-A:166-173.
Kuhl et al., “Elliptic Fourier Features of a Closed Contour,” Computer Graphics and Image Processing (1982), 18:236-258.
Rosenfel et al., “Digital Picture Processing,” Academic Press, Inc. (1976), Chapter 8, Section 3, pp. 305-328.
Zahn et al., “Fourier Descriptors for Plane Closed Curves,” IEEE Transactions on Computers (Mar. 1972). C-21:269-281.
Granlund, “Fourier Preprocessing for Hand Print Character Recognition,” IEEE Transactions on Computers, (Feb. 1972), C-21:195-201.
Hashimoto Koji
Ikeda Takahiro
Ito Takeshi
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Kabushiki Kaisha Toshiba
Lay Michelle K.
Tung Kee M.
LandOfFree
Graphic processing method and device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Graphic processing method and device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graphic processing method and device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3892081