Image analysis – Image transformation or preprocessing – Changing the image coordinates
Reexamination Certificate
2007-07-10
2007-07-10
Bella, Matthew C. (Department: 2624)
Image analysis
Image transformation or preprocessing
Changing the image coordinates
C382S266000, C382S275000, C358S525000
Reexamination Certificate
active
10318618
ABSTRACT:
An improved method and system for edge adaptive interpolation. The method uses a “9×2” window to detect the edge direction with post-processing to remove any artifacts due to the possible false edge detection, and a hierarchical scheme is employed to reduce the computation required. The method detects if there is edge existing along the current pixel. If there is no edge, then the edge detection output will be 90 degrees (the interpolation will be performed along the vertical direction). If an edge does exist, the method determines whether the edge direction falls within a first or second direction group. Once the edge direction is assigned to a particular group (e.g., 0–90 degrees or 90–180 degrees), the edge direction will be detected among five (5) possible directions. To further improve the edge detection precision, and also to remove the possibility of false edge direction detection, a post-processing technique may be applied to the edge direction signal. After the edge signal post-processing, the edge direction information is then passed to an edge adaptive interpolation block to perform the interpolation along the edge direction detected. Still another post-processing technique may be applied to the edge adaptive interpolated signal to further remove the possible noise due to an incorrect edge direction detection.
REFERENCES:
patent: 5347599 (1994-09-01), Yamashita et al.
patent: 5438552 (1995-08-01), Audi et al.
patent: 5832143 (1998-11-01), Suga et al.
patent: 5886745 (1999-03-01), Muraji et al.
patent: 6421090 (2002-07-01), Jiang et al.
patent: 6614484 (2003-09-01), Lim et al.
patent: 6810156 (2004-10-01), Itoh
patent: 6904169 (2005-06-01), Kalevo et al.
patent: 7043091 (2006-05-01), Michel
patent: 2002/0028028 (2002-03-01), Michel
patent: 2003/0156301 (2003-08-01), Kempf et al.
patent: 2004/0165785 (2004-08-01), Monobe et al.
patent: 9-037214 (0000-01-01), None
patent: A-04-364685 (0000-01-01), None
patent: A-05-153562 (0000-01-01), None
patent: A-11-146346 (0000-01-01), None
patent: A-11-331773 (0000-01-01), None
Notification of Reason for Rejection (English Translation) as received from the Japanese Patent Office dated Feb. 27, 2006 in connection with the corresponding Japanese Patent Application No. 2003-414313.
Office Action (English and Chinese translations) as received from the Chinese Patent Office dated Apr. 15, 2005 in connection with the corresponding Chinese Patent Application No. 200310124636.9.
Notice of Preliminary Rejection English and Korean Translations) as received from the Korean Patent Office dated Sep. 16, 2005 in connection with the corresponding Korean Patent Application No. 10-2003-0090781.
Bella Matthew C.
DLA Piper (US) LLP
Hung Yubin
Trident Microsystems, Inc.
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